(a) Treatments P. antarctica strain 1871 (b) Treatments P. antarctica strain 1374 low high low high 2 pM 3 900 pM 2 pM 3 900 pM Chorismate synthase _GAP_||LNR domain||Kringle domain||_GAP_||... Proteasome subunit A ✔ unknown protein Concanavalin A-like lectin/glucanases (_GAP_||PF13385||_GAP) ✔ Peroxidase ✔ Periplasmic binding protein ✔ Calcineurin-like phosphoesterase||_GAP_ ✔ unknown protein von Willebrand factor type A domain ✔ von Willebrand factor typeA domain (PF13519||_GAP_) ✔ Ribulose-phosphate 3 epimerase family Ferredoxin-NADP+ reductase unknown protein ✔ Spondin ✔ unknown protein Proteasome subunit Ribosomal protein L18e/L15 S-adenosylmethionine synthetase unknown protein Proteasome subunit unknown protein ✔ Iron starvation induced protein (ISIP2A) unknown protein ✔ hypothetical protein ✔ hypothetical protein (_GAP_||PF07082||_GAP_) ✔ Delta-aminolevulinic acid dehydratase _GAP_||PAP_fibrillin||_GAP_ ✔ _GAP_||PF13517||FG-GAP repeat unknown protein ✔ _GAP_||PF13517||FG-GAP repeat||PF13517||_GAP_ unknown protein ✔ unknown protein ✔ unknown protein ✔ ShK domain-like (PF01549) Iron starvation induced protein (ISIP2A) ✔ unknown protein unknown protein ✔ unknown protein unknown protein ✔ ShK domain-like (PF01549) unknown protein TCP-1/cpn60 chaperonin family ✔ unknown protein Cyclophilin type peptidyl-prolyl cis-trans isomerase unknown protein ✔ Pyruvate kinase Ribosomal protein L17 Aspartate aminotransferase unknown protein ✔ unknown protein PF13517 ✔ unknown protein ✔ Photosystem I psaA/psaB protein unknown protein von Willebrand factor type A domain (PF13519) unknown protein ✔ unknown protein ✔ unknown protein ✔ unknown protein ✔ unknown protein hypothetical protein ✔ Calmodulin and related proteins (PF13499||EF hand||_GAP_) ✔ Ribosomal protein L23 ✔ unknown protein Iron starvation induced protein (ISIP3) ✔ unknown protein ✔ S-adenosylmethionine synthetase unknown protein Nitrate/nitrite transporter ✔ unknown protein unknown protein ✔ unknown protein ✔ unknown protein ✔ PE-PGRS family protein ✔ hypothetical protein ✔ unknown protein _GAP_||Cadmium carbonic anhydrase repeat||_GAP_ ✔ Transcript initiation factor (_GAP_||Bromodomain||_GAP_) Ribosomal protein L4/L1 family _GAP_||Bromodomain||_GAP_ von Willebrand factor type A domain (_GAP_||PF13519) PHD finger protein (_GAP_||Bromodomain||_GAP_) von Willebrand factor tpye A domain (PF00092) ✔ unknown protein Iron starvation induced protein (ISIP2A) ✔ _GAP_||Plastocyanin-like domain||_GAP_ S-adenosylmethionine synthetase ✔ unknown protein _GAP_||PF13517||FG-GAP repeat||PF13517||_GAP_ ✔ _GAP_||PT repeat||_GAP_ ✔ hypothetical protein ✔ Calmodulin and related proteins (PF13833||_GAP_) ✔ Ribulose bisphosphate carboxylase large chain ✔ ShK domain-like (PF01549) ✔ Ribulose bisphosphate carboxylase, small chain ✔ PF13499||EF hand||_GAP_||PF13499||PF13202||EF hand ✔ Ribulose bisphosphate carboxylase large chain ShK domain-like (PF10549) _GAP_||PF13499||PF13202||EF hand ✔ unknown protein ✔ Iron starvation induced protein (ISIP3) ✔ unknown protein ✔ hypothetical protein General bacterial porin family (PF13609) Flavodoxin ✔ unknown protein Thioredoxin ✔ unknown protein _GAP_||Chlorophyll A-B binding protein 40 unknown protein 20 ✔ Iron starvation induced protein (ISIP3) ✔ Iron starvation induced protein (ISIP3) ✔ Counts unknown protein shared 0 unknown protein Counts 0 -1.5 0 1.5 ✔ abundance field presence unknown protein -1 0 1 patterns Fold change ferredoxin--NADP+ reductase _GAP_||Prolyl oligopeptidase family||_GAP_ Fold change _GAP_||PF13499||PF13202||EF hand||_GAP_ .