5 /1-396

bchX LYXE d Bacteria

1-396

bchX GCA 000152145. bchX ADVR d Bacteria

us aggregans DSM 948

p Chloroflexota c Chlor bchX NQWI d Bacteria us aurantiacus J-10-fl /

1 ASM15214v1 protein p Chloroflexota c Chlo

bchX GCA 000012485. bchX GCA 000016085. xus sp. Y-400-fl /1-396

bchX GCA 000012585.

in subunit X Chloroflex

loroflexus s 1/1-396 us islandicus 1/1-396

loroflexus s 1/1-396

p Chloroflexota c Chlo oflexia o Chloroflexales in subunit X Chloroflex bchX DCSM d Bacteria

EFO79826.1 chloroph bchX GCA 000020505. roflexia o Chloroflexale 1 ASM1248v1 protein A 1 ASM1608v1 protein A

ein subunit X Chlorofle

1 ASM1258v1 protein A bchX GCA 000168715. bchX GCA 000006985.

de reductase iron prote hloroflexus s Chloroflex

f Chloroflexaceae g Ch

f Chloroflexaceae g Ch

p Chloroflexota c Chlo roflexia o Chloroflexale

f Chloroflexaceae g Ch bchX GCA 000020645. 1 ASM2050v1 protein A ide reductase iron prote yllide reductase iron pr BP37253.1 chlorophyll BB24282.1 Chlorophyl s f Chloroflexaceae g O

lide reductase iron prot bchX GCA 000015125. 1 ASM16871v1 protein BB27673.1 Chlorophyl bchX GCA 000020465. 1 ASM698v1 protein AA

s f Chloroflexaceae g C

CL25985.1 chlorophylli

1 ASM2064v1 protein A oflexia o Chloroflexales flexia o Chloroflexales

CF11158.1 chlorophylli roflexia o Chloroflexale

bchX Viridilinea medios s f Chloroflexaceae g C BY33667.1 chlorophyll

ide reductase iron prote lide reductase iron prot otein subunit X Oscilloc loroploca s Chloroploca

bchX Chloroploca asia

1 ASM1512v1 protein A scillochloris s Oscilloch bchX GCA 000020625. bchX Chloroploca asia EAT58209.1 chlorophy bchX OHK Co dastool CM51883.1 chlorophyl 1 ASM2046v1 protein A lide reductase iron prot

M72651.1 chlorophyllid

CF43263.1 chlorophyll bchX OHK UC 40.cont roflexia o Chloroflexale bchX GCA 000020545. bchX OHK Co maxb.04 de reductase iron prote

1 ASM2194v11 proteinA

egans 1/1-396

egans/1-396

bchX RYFF01 1/1-394 p Chloroflexota c Chlor 396/1-396 s f Chloroflexaceae g U Chloroflexota c Chloro

bchX RSAS01 1/1-392 1 ASM2062v1 protein A ntiacus 1/1-396 96 BL65809.1 chlorophylli ein subunit X Chlorobiu bchX NQWI01/1-395 in subunit X Chlorobium bchX RYFE01 1/1-395 alina Kir153F/1-395 hloroploca s 1/1-395 1ASM1886v1 proteinA hloris trichoides DG6 /1 CD89976.1 chlorophyll llide reductase iron pro bchX Oscillochloris/1-3 asiatica 1/1-394 tica B79 1/1-394 loris trichoides 1/1-391 dicus isl2 1/1-396 ein subunit X Chlorobiu tica B79/1-394 metabat 40/1-395 ntiacus/1-396

1 ASM2218v1 protein A e reductase BchX subu bchX RYFD01 1/1-391 dicus isl2/1-396 bchX Chlorothrix 1/1-42 1 ASM2054v1 protein A ide reductase iron prote 6 bchX Chlorothrix/1-420 bchX TC 147/1-384 bchX Pelodictyon luteo p Chloroflexota c Chlo in subunit X Chlorobac igs 1/1-395 CF46555.1 chlorophyll 400/1-396 de reductase iron prote 3/1-395 bchX DCSM01/1-389 /1-383

bchX PNIQ01 1/1-396 bchX GCA 000021945. bchX chloroflexus aggr BA1466 s 1/1-389 bchX chloroflexus aggr bchXAZXV d Bacteria bchX Chloroflexus sp Y 1/1-383 ide reductase iron prote tein subunit X Chlorobi phaeovibrioides DSM m luteolum DSM 273 /1 bchX JPIM d Bacteria p bchX JPIM01/1-396

bchX TC 160/1-392 bchX chloroflexus aura

bchX Chlorobaculum li bchX Nak metab 64/1-3

bchX GCA 000018865. -391 bchX DOPW01 1/1-396 bchX GCA 000020525. m chlorochromatii CaD bchX TC 63/1-306 91 CE03882.1 chlorophyll bchX RFHF01 1/1-396 bchX Chloroflexus islan nit Chlorobium tepidum bchX SJPA01 1/1-326 bchX chloroflexus aura in subunit X Pelodictyo bchX GCA 000022185.

bchX Chloroflexus islan bchX Chlorobaculum p 0 ide reductase iron prote bchX J043 1/1-396 ulum parvum NCIB 832 bchX J metab 161/1-39 in subunit X Chlorobium lum/1-284 bchX LWQS d Bacteria bchX Pelodictyon phae 83 bchX Chloroflexus sp Y 1 ASM2052v1 protein A in subunit X Chlorobium bchX Anaerolinea YNP um ferrooxidans DSM 1 83 265 /1-283 bchX Anaerolinea YNP ide reductase iron prote mnaeum/1-297 -284 Tree scale: 1 bchX NP1 C 2 1/1-383 bchX RFGY01 1/1-383 3 /1-301 63 1/1-383 n phaeoclathratiforme B bchX Prosthecochloris TLS /1-283 bchX JP3 C 13 1/1-383 bchX MPJE01/1-286 in subunit X Prostheco bchX JP3 Bin7 1/1-383 arvulum/1-283 0.3 bchX J036 1/1-383 CF15169.1 chlorophyll phaeobacteroides DSM 7 /1-283 oclathratiforme/1-284 bchX PGTN01 1/1-383 1.0

1.0 0.9 bchX Nak metab 36/1-3 limicola DSM 245 /1-2 -383 in subunit X Chlorobium bchX Prosthecochloris 3031 /1-286 1.0 bchX Nak UC 36 1/1-3

1.0 bchX J CC 140 1/1-383 s sp. RS-1 /1-388

1.0 bchX J UC mh maxb.2 aestuarii DSM271/1-28 0.4 chloris aestuarii DSM 2 U-1 /1-284 0.9 41 /1-388 ide reductase iron prote 1.0 0.3 1.0 bchX N CC 20 1/1-383 0.9 1.0 1.0 1.0 0.3 1.0 1.0 1.0 0.9 bchX NP3 C 7 1/1-383 266 /1-287 0.1 1.0 0.9 1.0 1.0 0.9 1.0 0.8 bchX J UC 75 1/1-383 86 0.7 1.0 in subunit X Roseiflexu phaeobacteroides BS1 aestuarii/1-282 1.0 0.3 bchX Nak metab 36 1/1 bchX PDNY02 1/1-322 1.0 0.9 0.20.0 1.0 0.1 1.0 bchX J metab 75/1-383 s castenholzii DSM 139 0.0 0.9 in subunit X Chloroherp 0.0 bchX TC 71 1/1-388 71 /1-282 2 0.7 0.0 0.80.0 0.9 0.4 bchX PDNZ01 1/1-291 bchX TC 71/1-388 1.0 0.7 0.5 90 1.0 1.0 0.6 0.6 0.5 bchX TC 152/1-390 ide reductase iron prote bchX Chloroherpeton t bchX NSLH01/1-267 1.0 0.4 390 in subunit X Roseiflexu bchX MGTX d Bacteria /1-287 bchX TC 152 1/1-390 bchX Nak maxbbchX PHFL01/1-267085/1- 0.3 4/1-390 1.0 bchX TC 22 1/1-323 eton thalassium ATCC 0.8 0.2 1.0 0.6 0.2 bchX TC 22/1-323 metabat 10/1-390 1.0 0.1 bchX OHK UC 10 1/1-3 90 BQ91621.1 chlorophyll p Elusimicrobiota c Elu halassium/1-267 0.7 0.1 ide reductase iron prote bchX OHK C C 18 1/1- 1.0 0.6 igs 1/1-390 267 1.0 bchX OHK Co maxb.09 35110 /1-267 1-388 bchX WPS2 29 1 1.0 1.0 bchX OHK Co dastool 1.0 0.9 0.9 1 ASM1666v1 protein A BU59786.1 chlorophyll simicrobia o UBA1565 bchX WPS2 33 1 1.0 bchX OHK CC 13 1/1-3 388 1.0 bchX OHK UC 10.cont 0.9 1.0 1.0 bchX Roseiflexus sp 1/ 0.9 f UBA9628 g GWA2-66 0.9 1.0 0.8 bchX GCA 000016665. 1 ASM1780v1 protein A 0.5 bchX Roseiflexus sp/1- 1.0 387 0.4 bchX PNIR01 1/1-388 metabat 108/1-371 bchX FOPK d Bacteria 0.5 -18 s 2/1-297 1.0 bchX GCA 000017805. 7/1-371 1.0 1.0 1.0 bchX LGEI d Bacteria p 1.0 bchX Nak concoct 8/1- p Proteobacteria c Alp 0.9 nholzii/1-387 bchX OHK Co dastool Proteobacteria c Alpha 1.0 nholzii 1/1-387 haproteobacteria o Rhi 0.3 bchX OHK Co maxb.09 bchX FPBW d Bacteria bchX roseiflexus caste proteobacteria o Rhizo 1.0 1.0 zobiales f Beijerinckiac bchX roseiflexus caste tigs 1/1-388 p Proteobacteria c Alp 1.0 1.0 5/1-388 bchX GCA 000272495. biales f Beijerinckiacea 1.0 bchX kouleothrix/1-260 eae g Methylobacterium bchX FOQW d Bacteria haproteobacteria o Rhi 0.9 bchX OHK UC 106.con metabat 106/1-388 1 ASM27249v1 protein e g Methylobacterium s 1.0 bchX OHK Co maxb.00 4/1-387 bchX FOTK d Bacteria p Proteobacteria c Alp zobiales f Beijerinckiac s Methylobacterium ph 0.6 EIZ84117.1 chlorophyl 0.4 bchX OHK Co dastool Methylobacterium purp 0.7 igs 1/1-387 p Proteobacteria c Alp haproteobacteria o Rhi BA965 s 1/1-390 eae g Methylobacterium bchX OHK Co maxb.00 bchX GCA 000364445. lide reductase iron prot yllosphaerae 1/1-289 metabat 77/1-387 haproteobacteria o Rhi zobiales f Beijerinckiac urogeneiscleroticus 1/1 bchX OHK UC 77.cont s f Roseiflexaceae g U 1 ASM36444v1 protein s Methylobacterium or 1.0 0.8 ein subunit X Methylob 1.0 bchX ANPA d Bacteria zobiales f Beijerinckiac eae g Methylobacterium 0.3 bchX OHK Co dastool EMS44280.1 chloroph -289 roflexia o Chloroflexale p Proteobacteria c Alph yzae 1/1-289 eae g Methylobacterium acterium sp. GXF4 /1-2 bchX QWQZ01 1/1-390 e1 /1-278 bchX FNHS d Bacteria yllide reductase iron pr s Methylobacterium br 0.8 0.8 p Chloroflexota c Chlo aproteobacteria o Rhiz 1.0 bchX QWQY01 1/1-390 rium modesticaldum Ic p Proteobacteria c Alp s Methylobacterium ps otein subunit X Methylo achiatum 1/1-28989 1.0 0.3 obiales f Beijerinckiace bchX DBCF d Bacteria bchX JAGD d Bacteria haproteobacteria o Rhi in subunit x Heliobacte bacterium mesophilicumeudosasicola 1/1-289 0.9 p Proteobacteria c Alp ae g Methylobacterium 1.0 0.9 1.0 bchX DBCF01/1-390 0 de reductase iron prote zobiales f Beijerinckiac 0.9 1.0 bchX BBUX d Bacteria haproteobacteria o Rhi s Methylobacterium m 0.9 eae g Methylobacterium SR1.6/6 /1-289 1.0 bchX QWQO01 1/1-39 odesticaldum/1-278 BZ83893.1 chlorophylli p Proteobacteria c Alp zobiales f Beijerinckiac s Methylobacterium ph esophilicum 1/1-289 bchX Heliobacterium m 1 ASM1916v1 protein A ilum B /1-246 haproteobacteria o Rhi 1.0 bchX GCA 000019725. eae g Methylobacterium 0.7 0.3 dobacterium thermoph zobiales f Beijerinckiac yllostachyos 1/1-289 bchX GCA 000019165. 1 ASM1972v1 protein A s Methylobacterium ra 246 tein subunit X Chloraci eae g Methylobacterium 1.0 6 CB24802.1 chlorophyll diotolerans 1/1-289 bchX Nak maxb 100/1- llide reductase iron pro ovibrio sp. 970 /1-289 s Methylobacterium ra 0.8 ium thermophilum/1-24 ide reductase iron prote AEP11691.1 chlorophy tein subunit X Thiorhod 0.9 bchX Chloracidobacter in subunit X Methyloba diotolerans 1/1-289 1.0 1 ASM22629v1 protein llide reductase iron pro cterium radiotolerans J bchX GCA 000022685. bchX GCA 000226295. EIC20041.1 chlorophy 1 ASM2268v1 protein A CM 2831 /1-289 0.5 3 ASM22872v3 protein CS40679.1 bacteriochl bchX Methylobacterium -289 orophyllide reductase i 0.8 0.8 1.0 1.0 bchX GCA 000228725. icoccus mobilis 8321 /1 ron protein subunit Bch extorquens 1/1-289 otein subunit X Thioflav X Methylobacterium ex bchX TC 115/1-285 yllide reductase iron pr torquens AM1 /1-289 AGA91696.1 chloroph 1 ASM32704v1 protein bchX GCA 000243435. bchX Methylobacterium 0.2 bchX GCA 000327045. 2 ASM24343v2 protein extorquens/1-289 EHP89494.1 chloroph 1.0 89 yllide reductase iron protein subunit X Methylo 0.6 bchX TC 110/1-264 spira halophila SL1 /1-2 bacterium extorquens D in subunit X Halorhodo SM 13060 /1-289 ide reductase iron prote bchX LSNC d Bacteria 1.0 0.8 1 ASM1558v1 protein ABM62374.1 chlorophyll p Proteobacteria c Alphaproteobacteria o Rhi bchX GCA 000015585. zobiales f Beijerinckiaceae g Methylobacterium 0.9 s Methylobacterium populi 1/1-289 1.0 0.7 bchX TC 105/1-289 bchX GCA 000019945. 0.3 1 ASM1994v1 protein ACB81007.1 chlorophyllide reductase iron protein subunit X Methylobacterium populi BJ001 /1 -289 1.0 hlorophyllide reductase subunit 35.5 kDa chain Phaeospirillum molischianum DSM 120 /1-289 0.8 bchX GCA 000294655.1 Pm DSM120 protein CCG40853.1 bacterioc zobiales f Beijerinckiaceae g Methylobacterium s Methylobacterium extorquens 1/1-289 1.0 0.6 bchX LMMN d Bacteria p Proteobacteria c Alphaproteobacteria o Rhi 1.0 bchX GCA 000442515.1 PhaespirillumFulvum 1.0 protein EPY01083 .1 chlorophyllide reductase iron protein subunit X Phaeospirillum fulvum MGU-K5 /1-289 s Methylobacterium extorquens 1/1-289 0.6 zobiales f Beijerinckiaceae g Methylobacterium bchX FOUO d Bacteria p Proteobacteria c Ga p Proteobacteria c Alphaproteobacteria o Rhi 0.50.9 0.7 mmaproteobacteria o Ectothiorhodospirales f E bchX LMNQ d Bacteria 4 /1-289 0.5 ctothiorhodospiraceae g Ectothiorhodospira s cterium extorquens CM bchX Halorhodospira h Ectothiorhodospira mobilis 1/1-289 ide reductase iron protein subunit X Methyloba 0.9 alochloris/1-289 CK83796.1 chlorophyll 1 /1-289 1.0 0.9 bchX GCA 000021845.1 ASM2184v1 protein A cterium extorquens PA bchX FOFO d Bacteria in subunit X Methyloba p Proteobacteria c Ga de reductase iron prote 0.9 1.0 1.0 mmaproteobacteria o E BY31121.1 chlorophylli torquens DM4 /1-289 bchX AGBG d Bacteria ctothiorhodospirales f E 1 ASM1884v1 protein A p Proteobacteria c Ga ctothiorhodospiraceae bchX GCA 000018845. X Methylobacterium ex 1.0 g Ectothiorhodospira s ron protein subunit Bch lsuginis 1/1-289 bchX GCA 000225005. mmaproteobacteria o E Ectothiorhodospira ma orophyllide reductase i 2 PHS-1-454 protein E ctothiorhodospirales f E gna 1/1-289 AX25139.1 bacteriochl s Methylobacterium sa 03 ctothiorhodospiraceae 1 ASM8354v1 protein C eae g Methylobacterium bchX Nak metab 48/1-2 HQ53262.1 chlorophyll ethylocystis rosea 1/1-3 0.8 g Ectothiorhodospira s bchX GCA 000083545. zobiales f Beijerinckiac 63 ide reductase iron prote 1/1-289 ae g Methylocystis s M 1.0 bchX ARKI d Bacteria p haproteobacteria o Rhi bchX ARCT 1/1-303 1.0 0.71.0 in subunit X Ectothiorh p Proteobacteria c Alp obiales f Beijerinckiace Proteobacteria c Alpha odospira sp. PHS-1 /1- bchX FOSV d Bacteria aproteobacteria o Rhiz 1.0 bchX Nak maxb 089 1/ 289 bchX AYNA 1/1-303 0.7 proteobacteria o Aceto p Proteobacteria c Alph 0.7 1-289 bchX Nak maxb 089/1- bacterales f Acetobacte bchX ARCT d Bacteria bchX PYDU 1/1-303 1.0 5 1/1-289 0.3 1.0 bchX NCAT d Bacteria 289 raceae g Elioraea s Eli 0.7 0.5 oraea tepidiphila 1/1-28 s Methylobacterium sp 1.0 bchX NCFD d Bacteria p Proteobacteria c Alph ssipiicola 1/1-289 1.0 1.0 9 eae g Methylobacterium 6 1/1-289 bchX GCA 000202835. p Proteobacteria c Alp aproteobacteria o Acet s Methylobacterium go zobiales f Beijerinckiac 0.3 bchX GCA 000219295. obacterales f Acetobac s Methylobacterium sp s 1/1-289 1 ASM20283v1 protein haproteobacteria o Ace eae g Methylobacterium bchX JABX d Bacteria teraceae g Acidocella s haproteobacteria o Rhi 0.8 tobacterales f Acetobac ae g Methylobacterium 2 Acry PM v3 protein E BAJ81226.1 chlorophy zobiales f Beijerinckiac eae g Methylobacterium p Proteobacteria c Alp enophaga flava 1/1-28908 bchX ARBC d Bacteria 1/1-352 1.0 1.0 p Proteobacteria c Gam teraceae g Acidocella s obiales f Beijerinckiace GO94767.1 BchX Acid llide reductase X subun bchX LMND d Bacteria haproteobacteria o Rhi zobiales f Beijerinckiac 308 1.0 bchX GCA 000223985. rogenophaga s Hydrog Luminiphilus sp3 1/1-3 0.9 p Proteobacteria c Ga Acidocella sp1 1/1-352 aproteobacteria o Rhiz 89 1.0 maproteobacteria o Ch iphilium sp. PM /1-240 it Acidiphilium multivoru p Proteobacteria c Alp haproteobacteria o Rhi 0.7 0.8 bchX GCA 000227745. s Luminiphilus sp3 1/1- urkholderiaceae g Hydaceae g Luminiphilus s 1.0 2 ASM22398v1 protein bchX FOPM d Bacteria p Proteobacteria c Alph 1.01.0 bchX GCA 000224065. mmaproteobacteria o C m AIU301 /1-240 p Proteobacteria c Alp 1/1-312 romatiales f Chromatia Luminiphilus sp2 1/1-2 3 ASM22774v3 protein 1.0 bchX GCA 000585215. bchX LMNJ d Bacteria taproteobacteriales f Beudomonadales f Halie eaceae g Luminiphilus 0.9 EGV19663.1 chloroph bchX LMMS d Bacteria 55 /1-289 hromatiales f Chromati ceae g Thiohalocapsa bchX Allochromatium v 2 ASM22406v1 protein aceae g Luminiphilusaceae s g Luminiphilus s 0.6 maproteobacteria o Be 0.71.0 AFL73968.1 chlorophy maproteobacteria o Ps seudomonadales f Hali 0.8 1 Thiorhodococcus sp. yllide reductase iron pr 1-242 bchX GCA 000025485. aceae g Lamprocystis s 1/1-289 proteobacteriumm HTCC2080 HIMB /1-240 0.8 EGV33088.1 chloroph p Proteobacteria c Gam eudomonadales f Halieeudomonadales f Halie 0.9 bchX LJYW d Bacteria inosum/1-274 llide reductase iron pro Proteobacteria c Gammmaproteobacteria o P 1.0 otein subunit X Thiocap s Lamprocystis purpure 5-3 /1-289 protein EXJ13271.1 C 1.0 bchX FMVW d Bacteria 1 ASM2548v1 protein A bchX BCTF d Bacteria otein subunit Xgamma gamma proteobacteriugibacter litoralis KT71 / 1/1-289 0.7 yllide reductase iron pr bchX NZIJ d Bacteria p maproteobacteria o maproteobacteriaPs o Ps 1.0 tein subunit X Thiocyst p Proteobacteria c Ga 0.6 0.8 bchX JHZK d Bacteria p Proteobacteria c Alp sa marina 5811 /1-240 a 1/1-289 B /1-289 0.7 proteobacterium NOR 0.6 bchX GCA 000239755. hlorophyllide reductase yllide reductase iron pr p Proteobacteria c Alp DC63472.1 chlorophyll otein subunit X Thiorho bchX NHEG d Bacteria Proteobacteria c Gam Proteobacteria c Gam otein subunit X marineotein subunit X Congre 1.0 0.5 is violascens DSM 198 s Luminiphilus syltensis s 1/1-289 bchX GCA 000344805. p Proteobacteria c Alph haproteobacteria o Rhi s 1/1-289 subunit BchX Imhoffiel bchX NZIH d Bacteria p EHQ56882.1 chloroph otein subunit X gamma hilus syltensis NOR5-1 1.0 bchX GCA 000239775. dococcus drewsii AZ1 / bchX AGIF d Bacteria p yllide reductase ironyllide pr reductase iron pr 2 ASM23975v2 protein ide reductase iron prote /1-264 0.7 bchX GCA 000239795. haproteobacteria o Rhi eaceae g Luminiphilus iaceae g GCA-2689605 0.6 0.4 0.6 1 ASM34480v1 protein zobiales f Pleomorphom la purpurea /1-274 bchX TC 131/1-287 0.8 bchX GCA 000026145. aproteobacteria o Rhiz 4 ASM22750v4 protein yllide reductase iron pr 0.8 1-274 EAW41222.1 chloroph EAQ96276.1 chloroph otein subunit X Luminip iaceae g GCA-2689605 2 ASM23977v2 protein in subunit X Allochroma bchX TC 51/1-264 289 1.0 bchX OHK UC 31 1/1-2 CCD90169.1 bacterioc zobiales f Afifellaceae g A964 s 1/1-289 0.9 seudomonadales f Hali bchX OHK Co maxb.07 2 ASM23979v2 protein bchX GCA 000227505. zobiales f Hyphomicrob 0.3 onadaceae g Prosthec 0.9 BAM91895.1 bacterioc obiales f Afifellaceae g 1 ASM16911v1 protein EED32373.1 chloroph bchX LYSZ d Bacteria 2 ASM15312v2 protein yllide reductase iron pr 0.3 0.8 1 ASM2614v1 protein C tium vinosum DSM 180 zobiales f Hyphomicrob 1.0 CCD96387.1 bacterioc 0.9 bchX AUIM d Bacteria hlorophyllide reductase Afifella s Afifella marin mmaproteobacteria o P monas palustris G 1/1- 1.0 1.0 89 nas palustris 1/1-289 omicrobium s Prosthec haproteobacteria o Rhi roidobacteraceae g UB 1.0 bchX GCA 000179775. bchX GCA 000169115. 1 ASM15815v1 protein 89 0.9 0.7 CCD98529.1 bacterioc Afifella s Afifella pfenni bchX GCA 000153125. nas palustris/1-289DX-1 /1-289 5/1-289 hlorophyllide reductase /1-274 EED36806.1 chloroph bchX GCA 000154705. haproteobacteria o Rhi 1.0 p Proteobacteria c Alph AL75497.1 bacteriochlo a 1/1-289 p Proteobacteria c Ga 1.00.9 0.2 bchX CXWD d Bacteria hlorophyllide reductase subunit 35.5 kDa chain 0.9 omicrobium hirschii 1/1 0.9 p Proteobacteria c Alph bchX GCA 000158155. p Proteobacteria c Alp monas s Rhodopseudo bchX GCA 000158095. teroidobacterales f Ste bchX Rhodopseudomo GA009 /1-289-1 /1-289 0.50.9 hlorophyllide reductase gii 1/1-289 1 ASM15817v1 protein subunit Bradyrhizobium 0.6 bchX GCA 000299935. 1 ASM17977v1 protein bchX Rhodopseudomoseudomonasmonas palustris palustris F 1/1-2 bchX ACCY d Bacteria p Proteobacteria c Alp 0.7 0.8 nas s 1/1-322 0.5 bchX NOXU01/1-237 2 ASM15470v2 protein aproteobacteria o Caul rophyllide reductase su subunit 35.5 kDa chain Bradyrhizobium sp. OR -289 A2 /1-289 bchX NHEB d Bacteria bchX GCA 000300855. 1/1-289 0.5 p Proteobacteria c Alp bchX GCA 000158175. mmaproteobacteriaraceae o S g Rhodopseudo aproteobacteria o Rhiz 9 0.7 0.8 0.2 bchX TC 66/1-264 subunit 35.5 kDa chain oligotrophicum S58 /1- eudomonas palustris C 0.91.0 0.8 1 ASM15809v1 protein bchX NZGY d Bacteria udomonas palustris TIE B5 /1-289 bchX GCA 000153705. EFL89071.1 chlorophy monas s Rhodopseudo S 285 /1-289 otein subunit X Rhodop 1 ASM29993v1 protein bunit 35.5 kDa chain B Bradyrhizobium sp. OR 0.7 1.0 bchX DBAV d Bacteria EDQ32675.1 chloroph obacterales f Parvularc eae g Rhodopseudomo bchX TC 28/1-242 p Proteobacteriazobiales c Ga f Xanthobacte udomonas palustris Ha B18 /1-289 289 haproteobacteria o Rhi Bradyrhizobium sp. ST bchX TC 181/1-264 1 ASM30085v1 protein obiales f Stappiaceae g monas pseudopalustris A53 /1-289 0.9 0.3 subunit BchX Rhodops -289 0.8 0.7 0.6 in subunit X Rhodopse onas palustris E 1/1-28 21 /1-289 1.0 bchX GCA 000166055. EEE43057.1 chloroph yllide reductaseraceae iron gpr Rhodopseudo llide reductase iron pro radyrhizobium sp. ORS S 375 /1-289 udomonas palustris Bis 1.0 0.7 bchX FNQM d Bacteria 0.8 1 ASM15370v1 protein EKE76065.1 chloroph ulaceae g UBA4496 s 1 0.6 1.0 bchX Nak maxb 093/1- yllide reductase iron pr bchX DBCG d Bacteriahaproteobacteria o Rhi /1-289 1.0 0.9 p Proteobacteria c Alph M 3809 /1-289 biales f Xanthobacterac in subunit X Rhodopse 0.7 bchX LXQI d Bacteria p zobiales f Stappiaceae Stappia s Stappia stell udomonas palustris Bis 0.8 0.6 bchX GCA 000144605. EKF60946.1 chlorophy hlorophyllide reductase monas s Rhodopseudo 0.8 1.0 278 /1-289 udomonas palustris Bis 0.6 0.8 0.8 0.4 bchX BCYV d Bacteria yllide reductase iron pr ADU45554.1zobiales chloroph f Xanthobacte ide reductase iron prote elnapia rosea 1/1-289 tein subunit X Ahrensia onas s Rhodopseudom elnapia moabensis 1/1 0.4 bchX JFBW d Bacteria radyrhizobium sp. S233 0.9 0.9 1 ASM16605v1 protein in subunit X Rhodopse 0.9 /1-289 p Proteobacteria c Alp 0.8 1.0 bchX LDCP d Bacteria yllide reductase iron pr 0.8 otein subunit X Hoeflea 0.9 p Proteobacteria c Alp EAU40222.1 chloroph 1.0 bchX LBHU d Bacteria proteobacteria o Rhizo lla silvestris BL2 /1-240 0.9 ohabitans s 1/1-289 0.6 264 ulata 1/1-308 0.8 0.6 bchX JMIX01/1-264 aproteobacteria o Caul ide reductase iron prote teraceae g Belnapia s 1 0.6 0.9 g Labrenzia s Labrenz ohabitans s 1/1-289 0.9 bchX DHHS d Bacteria in subunit X Rhodopse -289 Proteobacteria c Alpha CAE26964.1 bacterioc 0.9 1.0 bchX LLZQ d Bacteria 2 ASM17725v2 protein raceae g Rhodopseudo 0.4 0.3 llide reductase iron pro sp. R2A130 /1-289 haproteobacteria o Rhi CF00238.1 chlorophyll ohabitans s 1/1-289 0.5 1 ASM14460v1 protein otein subunit X Labren 0.4 0.6 bchX LSHQ d Bacteria bchX LCZM d Bacteria in subunit X Rhodopse ermentans 1/1-289 0.5 0.6 0.7 0.2

ceae g Rhodopseudom 1.0 0.9 bchX NOXT01/1-264 p Proteobacteria c Alp teraceae g Belnapia s B ntarcticus 1/1-289 0.6 ide reductase iron prote teraceae g Belnapia s B 1.0 0.7 bchX DBAW d Bacteria otein subunit X Oceani phototrophica DFL-43 ductase subunit BchX B 0.6 p Proteobacteria c Alp ADP69500.1 chloroph rrae 1/1-289 0.6 0.4 bchX OHK Co maxb.07 yllide reductase iron pr 0.7

0.5

Proteobacteria c Alpha 0.2 0.7 bchX GCA 000016405. p Proteobacteria c Alph haproteobacteria o Rho 1.0 ia alexandrii 1/1-308 BD08694.1 chlorophyll errireducens A 1/1-289 bchX GCA 000327525. in subunit X Methyloce p Proteobacteria c Alp 0.5 obacterales f Hyphomo bchX GCA 000177255. 1 ASM19577v1 protein /1-288 0.6 bchX GCA 000015985. urkholderiaceae g Limn 0.6 p Proteobacteria c Alp bchX GCA 000021005. tobacterales f Acetobac tes AP64/1-289 0.9 1.0 1 ASM2044v1 protein A zobiales f Xanthobacte ide reductase iron prote osus/1-288 0.7 tein subunit X Agrobac zia alexandrii DFL-11 /1 urkholderiaceae g Limn bchX GCA 000012905. bchX GCA 000212605. p Proteobacteria c Alp proteobacteria o Sphin g Gemmatimonas s 1/1 -289 dacidovorax s 1/1-289 bchX FTOM d Bacteria de reductase iron prote 289 urkholderiaceae g Limn ricarbonis 1/1-289 p Proteobacteria c Alph ADL02351.1 chlorophy /1-237 obiales f Xanthobactera 1/1-289 bchX GCA 000021865. baculum indicum P24 / BE40977.1 chlorophyll bchX GCA 000590925. doferax s Rhodoferax f p Proteobacteria c Alp obacteralestobacterales f Acetobac f Acetobac bchX FQXC d Bacteria haproteobacteria o Sph BAL75131.1 chlorin re bchX FZPF d Bacteria yllide reductase iron pr bchX LJIC d Bacteria p 9 bchX GCA 000622385. otein subunit X Fulvima doferax s Rhodoferax a /1-287 289 bchX GCA 000622425.

bchX GCA 000472185. haproteobacteria o Sph kaiensis 1/1-289 bchX GCA 000014045. 1 ASM1336v1 protein A bchX GCA 000161835. p Proteobacteria c Alp bchX GCA 000195775. bchX Roseobacter litor bchX GCA 000154785. eateles s Roseateles te 87 3 bchX GCA 000156115. bchX GCA 000169435. bchX MVOD d Bacteria bchX LXYH d Bacteria dobacterales f Rhodob ATCC BAA-35 /1-288 8/1-263 nadaceae g UBA1001 bchX GCA 000020445. aproteobacteria o Sphi haproteobacteria o Rhi doferax s Rhodoferax f 93 -289 BD86855.1 chlorophyll ide reductasetaproteobacteriales iron prote f B 1 ASM1640v1 protein A haproteobacteria o Sph terium albertimagni AO

240 haproteobacteria o Ace 00588 /1-289 1 Rhodobacter sp. AKP ivax gelatinosus IL144 1 ASM1598v1 protein A BJ05279.1 chlorophylli bchX Gemmatimonade 170 /1-287 s 1/1-289 gomonadales f Sphingo 1-289 aproteobacteria o Rhiz etaproteobacteriales f B 1 ASM2100v1 protein A 1 ASM1368v1 protein A bchX Rubrivivax gelatin haproteobacteria o Sph Gemmatimonadaceae . PH10 /1-281 2 ASM1290v2 protein A taproteobacteriales f B 217 /1-283 llide reductase iron pro aproteobacteria o Acet urkholderiaceae g Pseu ersatilis universalis 1/1 m centenum SW /1-289 1 ASM21260v1 protein 1 ASM28427v1 protein ncola s Aquincola tertia ticus 1/1-290 aproteobacteria o Sphi haproteobacteria o Ace urkholderiaceae g Rho ae g Rhodocista s 1/1- p Proteobacteria c Alp otein subunit X Rhodom rina pelagi HTCC2506 um DSM 122 /1-258 rius s 1/1-293 ingomonadales f Sphin bchX GCA 000013365. ersatilis thermotolerans 1 ASM2186v1 protein A haproteobacteria o Sph

urkholderiaceae g Rho 1 ASM59092v1 protein

M16094 /1-240 p Proteobacteria c Alp ingomonadales f Sphin p Proteobacteria c Alph p Proteobacteria c Alp bchX Nak concoct 131 acteraceae g Rubrimon s 1/1-312 rhodospira sibirica 1/1- onas palustris C 1/1-28 1 NB77 draft protein KI urkholderiaceae g Ros nella A s Ideonella A sa haproteobacteria o Sph L15 /1-289 1 ASM1374v1 protein A 1 32187 draft protein K CK50992.1 chlorophyll 1 HIMB11v1.0 protein E ngomonadales f Sphing 1 ASM1404v1 protein A maproteobacteria o Be 1 ASM16183v1 protein p Proteobacteria c Alp urkholderiaceae g Rho x benzoatilyticus JA2 = alis/1-264 2 ASM15478v2 protein arius sp. TM1035 /1-28 1 ASM15611v1 protein

1 ASM16943v1 protein pirillum rubrum F11 /1-2 p Proteobacteria c Alph ingomonadales f Sphin bchX GCA 000013685.p Proteobacteria c Alph 1 ASM1482v1 protein A BP70927.1 chlorophyll acter sp.AzwK-3b /1-2

oseivivax atlanticus /1- 1 protein EKX56388.1 monadaceae g Porphy mmaproteobacteria o B subunit X BchX Rubriv dospira sibirica ATCC 7 bchX GCA 000284275.p Proteobacteria c Alph maproteobacteria o Be BN77010.1 chlorophyll tein subunit X Brevund /1-281 Gemmatimonadales f irillum rubrumATCC 11 ingomonadales f Sphin p Proteobacteria c Alp hodoblastus acidophilu CM01449.1 Chlorophy icrobium vannielii ATCC etaproteobacteriales f B t BchX Rhodovulum sp BA79436.1 Chlorophyl etaproteobacteriales f B urkholderiaceae g Aqui ngomonadales f Sphing gomonadaceae g Novo bchX FODT d Bacteria yloversatilis s Methylov ubunit Roseovarius sp. EGJ21734.1 chlorophy subunit X Rhodospirillu haproteobacteria o Rho spirillales f Azospirillace us s Roseovarius atlan ingomonadales f Sphin etaproteobacteriales f B yloversatilis s Methylov dospirillum photometric acteraceae g Roseova gomonadaceae g Sphi as s Rubrimonas clifton bchX GCA 000013745. DE84452.1 chlorophyll AHM03475.1 Chloroph haproteobacteria o Rho bchX JROR d Bacteria1 ASM2174v1 protein A taproteobacteriales f B Salipigermucosus DS bchX JXXE d Bacteria p Proteobacteria c Gam urkholderiaceae g Ideo aproteobacteria o Rhod ingomonadales f Sphin omonadaceae g Erythr bchX GCA 000014825. taproteobacteriales f B g Thiorhodospira s Thio onas s Rhodopseudom N70039.1 Chlorophyllid IN75483.1 Chlorophylli gomonadaceae g Eryth tein subunit X Rubriviva RL96679.1 chlorophylli EET46276.1 chlorophy BG29846.1 chlorophyll robacter A s 1/1-289

p Proteobacteria c Ga EDZ43637.1 chloroph AEI96361.1 chlorophy ide reductase iron prote

otein subunit X Roseov EBA13888.1 chloroph otein subunit X Rhodos bchX JQKB d Bacteria aproteobacteria o Rhod bchX FMZX d Bacteria Chlorophyllide reductas hlorophyllide reductase imonas subvibrioides A p Proteobacteria c Gam otein subunit X Roseob Gemmatimonadetes o otein subunit X Thiorho ron protein subunit X R ide reductase iron prote gomonadaceae g Sphi 17100 /1-242

mmaproteobacteria o B llide reductase 35.5 kD ein subunit X Rhodosp sphingobium s Novosp mmaproteobacteria o B taproteobacteriales f B omonadaceae g Novos lide reductase BchX su eae g Rhodoblastus s R yllide reductase subuni ensis 1/1-289 mmaproteobacteria o B hodocyclaceae g Meth ngomonas A s Sphingo llide reductase iron pro gomonadaceae g Sphi

hodocyclaceae g Meth e reductase iron protein yllide reductase BchX s haproteobacteria o Azo dobacterales f Rhodob

bchX GCA 000021745. cteraceae g Roseovari

dobacterales f Rhodob bchX ALKN d Bacteria maproteobacteria o Be otein subunit X Pararho ide reductase BchX su obacter B s Erythrobac maproteobacteria o Be yllide reductase subuni dobacterales f Rhodob gomonadaceae g Sphi

eductasesubunit BchX etaproteobacteriales f B robacter B s Erythroba bchX NESG d Bacteria ctothiorhodospiraceae obacterales f Rhodoba ceae g Rhodopseudom e reductase subunit Bc llide reductase iron pro de reductase subunit X

de reductase iron prote TCC 15264 /1-270 bchX FBYA d Bacteria ide reductase subunit X in subunit X Rhodobac llide reductase iron pro yllide reductase iron pr llide reductase BchX pl

yllide reductase iron pr yllide reductase subuni p Gemmatimonadota c yllide reductase iron pr BAL96709.1 bacterioc e subunit BchX Rhodob ngomonas s Sphingom p Proteobacteria c Ga obacterales f Rhodoba hingobium capsulatum yllide reductase iron pr yllide reductase iron pr in subunit X Rhodobac p Proteobacteria c Ga orophyllide reductase i maproteobacteria o Be a chain BchX Rhodoba p Proteobacteria c Ga phingobium s 1/1-289 monas A jaspsi 1/1-289 lide reductase iron prot bunit Rhodobacter sph ngomonas s Sphingom

zobiales f Beijerinckiac etaproteobacteriales f R EJW12814.1 Chloroph tein subunit X Rhodoba p Proteobacteria c Alp etaproteobacteriales f R CI99483.1 chlorophyllid acteraceae g Rhodoba ter B marinus 1/1-289 p Proteobacteria c Gam EAQ27310.1 Chloroph obacterales f Rhodoba bunit Rhodobacter cap p Proteobacteria c Gam yllide reductase iron pr

haproteobacteria o Rho ngomonas B s 1/1-289 cter B marinus 1/1-289 t BchX Roseibacterium acteraceae g Marivita s mmaproteobacteria o B

6009.1Chlorophyllide r cteraceae g Jannaschi ctothiorhodospirales f E EGJ10539.1 chlorophy hX Sulfitobacter noctilu obiales f Xanthobactera Sulfitobacter guttiform bchX DLHL d Bacteria ter sphaeroides ATCC bchX MTJN d Bacteria in subunit X Rhodobac 1/1-289 1 ASM28425v1 protein onas sp3 1/1-307 tein subunit X Thalasso otein subunit X Rhodob Roseobacter denitrifica asmid Roseobacter lito

AEO49515.1 chloroph EDM32209.1 chloroph t X Roseobacter sp. CC acter sp. AKP1 /1-263

bchX FTMY d Bacteria EGZ46238.1 chloroph cteraceae g EhC02 s 1 bchX MSYM d Bacteria ter sphaeroides ATCC EDM71601.1 chloroph

p Proteobacteria c Gam rotein ETW12222.1 chl cter sphaeroides KD13 onas sp10 1/1-289 BC23775.1 Chlorophyl aeroides 2.4.1 /1-240

mmaproteobacteria o B haproteobacteria o Rhi bchX NIOG d Bacteria 1ASM29378v1 protein cter sphaeroides WS8N bchX MTEI d Bacteria bchX MOEB d Bacteria mmaproteobacteria o B cter C s Rhodobacter C 1 ASM1618v1 protein A

1ASM15284v1 protein sulatus SB 1003 /1-242

CCG08126.1 Chloroph aproteobacteria o Rhod

p Proteobacteria Alpc elongatum DSM 19469 p Proteobacteria c Ga Marivita hallyeonensis

2 ASM19037v1 protein a s Jannaschia aquima

1 Salmuc proteinEPX7 mmaproteobacteria o E 17025 /1-240 cicola /1-264 aproteobacteria o Rhiz is KCTC 32187 /1-241 bchX GCA 000284255.

teraceae bacterium HIM

1ASM22595v1 protein ralis Och 149 /1-264 bium sp. R2A62 /1-240 1ASM17077v1 protein acteraceae bacterium H ns OCh 114 /1-264 17029 /1-240 bchX JZUE d Bacteria 2 ASM22772v1 protein S2 /1-264

/1-292 1 /1-240 1 ASM17087v11 protein

1 SOAPdenovo v1.05 p

p Proteobacteria c Ga 1ASM1308v1 proteinA p Proteobacteria c Ga p Proteobacteria cAlp bchX GCA 000293785. /1-240 bchX GCA 000016185. vinaykumarii 1/1-300

bchX GCA 000152845. bchX BBYR d Bacteria 2 ASM28441v2 protein p Proteobacteria cAlph

bchXABCR d Bacteria /1-240 1/1-290 bchX GCA 000190375.

rina 1/1-290 p Proteobacteria c Ga

bchX GCA 000442255. bchXGCA

p Proteobacteria c Alph

B11 /1-289

bchX GCA 000225955. bchX GCA 000170775. bchX GCA 000227725.

TCC2083 /1-281

bchX GCA 000170875.

bchX AFHG d Bacteria bchX 000520615.GCA bchX ARCV d Bacteria bchX GCA 000013085.

bchX FYDG d Bacteria

bchX GCA 000284415.

bchX LAXJ d Bacteria

bchX AGFD d Bacteria

bchX AYSU d Bacteria