TABLE S2 List of mRNAs found in Staufen259-HA containing mRNPs Probe Set ID Gene Symbol Gene Title 217253_at --- (clone B3B3E13) Huntington's disease candidate region mRNA fragment 225440_at AGPAT3 1-acylglycerol-3-phosphate O-acyltransferase 3 228041_at AASDH 2-aminoadipic 6-semialdehyde dehydrogenase 232103_at BPNT1 3'(2'), 5'-bisphosphate nucleotidase 1 202539_s_at HMGCR 3-hydroxy-3-methylglutaryl-Coenzyme A reductase 233576_at HMGCLL1 3-hydroxymethyl-3-methylglutaryl-Coenzyme A lyase-like 1 224986_s_at PDPK1 3-phosphoinositide dependent protein kinase-1 219708_at NT5M 5',3'-nucleotidase, mitochondrial 225814_at XRN1 5'-3' exoribonuclease 1 233632_s_at XRN1 5'-3' exoribonuclease 1 218786_at NT5DC3 5'-nucleotidase domain containing 3 205760_s_at OGG1 8-oxoguanine DNA glycosylase 202760_s_at AKAP2 A kinase (PRKA) anchor protein 2 /// PALM2-AKAP2 protein 235348_at ABHD13 abhydrolase domain containing 13 228490_at ABHD2 abhydrolase domain containing 2 63825_at ABHD2 abhydrolase domain containing 2 225098_at ABI2 abl interactor 2 212186_at ACACA acetyl-Coenzyme A carboxylase alpha 200965_s_at ABLIM1 actin binding LIM protein 1 242624_at ABLIM2 actin binding LIM protein family, member 2 226914_at ARPC5L actin related protein 2/3 complex, subunit 5-like 202422_s_at ACSL4 acyl-CoA synthetase long-chain family member 4 229725_at ACSL6 Acyl-CoA synthetase long-chain family member 6 234312_s_at ACSS2 acyl-CoA synthetase short-chain family member 2 219413_at ACBD4 acyl-Coenzyme A binding domain containing 4 213501_at ACOX1 acyl-Coenzyme A oxidase 1, palmitoyl 227962_at ACOX1 acyl-Coenzyme A oxidase 1, palmitoyl 227889_at AYTL1 acyltransferase like 1 209765_at ADAM19 ADAM metallopeptidase domain 19 (meltrin beta) 1552726_at ADAMTS17 ADAM metallopeptidase with thrombospondin type 1 motif, 17 1552727_s_at ADAMTS17 ADAM metallopeptidase with thrombospondin type 1 motif, 17 222516_at AP3M1 adaptor-related protein complex 3, mu 1 subunit 203410_at AP3M2 adaptor-related protein complex 3, mu 2 subunit 202398_at AP3S2 adaptor-related protein complex 3, sigma 2 subunit 235647_at AP4S1 Adaptor-related protein complex 4, sigma 1 subunit 207992_s_at AMPD3 adenosine monophosphate deaminase (isoform E) 212814_at KIAA0828 adenosylhomocysteinase 3 201196_s_at AMD1 adenosylmethionine decarboxylase 1 213245_at ADCY1 adenylate cyclase 1 (brain) 203741_s_at ADCY7 adenylate cyclase 7 212173_at AK2 adenylate kinase 2 224655_at AK3 adenylate kinase 3 225342_at AK3L1 adenylate kinase 3-like 1 201346_at ADIPOR2 adiponectin receptor 2 222518_at ARFGEF2 ADP-ribosylation factor guanine nucleotide-exchange factor 2 (brefeldin A-inhibited) 213433_at ARL3 ADP-ribosylation factor-like 3 202206_at ARL4C ADP-ribosylation factor-like 4C 202207_at ARL4C ADP-ribosylation factor-like 4C 242727_at ARL5B ADP-ribosylation factor-like 5B 217852_s_at ARL8B ADP-ribosylation factor-like 8B 225707_at ARL6IP6 ADP-ribosylation-like factor 6 interacting protein 6 225956_at LOC153222 adult retina protein 235556_at LOC153222 Adult retina protein 225229_at AFF4 AF4/FMR2 family, member 4 207016_s_at ALDH1A2 aldehyde dehydrogenase 1 family, member A2 221588_x_at ALDH6A1 aldehyde dehydrogenase 6 family, member A1 221589_s_at ALDH6A1 aldehyde dehydrogenase 6 family, member A1 221590_s_at ALDH6A1 Aldehyde dehydrogenase 6 family, member A1 205621_at ALKBH1 alkB, alkylation repair homolog 1 (E. coli) 225113_at AGPS alkylglycerone phosphate synthase 204976_s_at AMMECR1 Alport syndrome, mental retardation, midface hypoplasia and elliptocytosis chromosomal region, gene 1 227021_at AOF1 amine oxidase (flavin containing) domain 1 225421_at ACY1L2 aminoacylase 1-like 2 202169_s_at AASDHPPT aminoadipate-semialdehyde dehydrogenase-phosphopantetheinyl transferase 226431_at ALS2CR13 amyotrophic lateral sclerosis 2 (juvenile) chromosome region, candidate 13 228255_at ALS2CR4 amyotrophic lateral sclerosis 2 (juvenile) chromosome region, candidate 4 241959_at ANAPC10 anaphase promoting complex subunit 10 /// similar to Anaphase-promoting complex subunit 10 (APC10) 235926_at ANAPC5 Anaphase promoting complex subunit 5 204742_s_at APRIN androgen-induced proliferation inhibitor 224900_at ANKFY1 ankyrin repeat and FYVE domain containing 1 218862_at ASB13 ankyrin repeat and SOCS box-containing 13 226861_at ASB8 ankyrin repeat and SOCS box-containing 8 238851_at ANKRD13A ankyrin repeat domain 13A 1556361_s_at ANKRD13C ankyrin repeat domain 13C 218418_s_at ANKRD25 ankyrin repeat domain 25 227064_at ANKRD40 ankyrin repeat domain 40 232600_at ANKRD42 Ankyrin repeat domain 42 230238_at ANKRD43 ankyrin repeat domain 43 220144_s_at ANKRD5 ankyrin repeat domain 5 225731_at ANKRD50 ankyrin repeat domain 50 219496_at ANKRD57 ankyrin repeat domain 57 227034_at ANKRD57 ankyrin repeat domain 57 218389_s_at APH1A anterior pharynx defective 1 homolog A (C. elegans) 224694_at ANTXR1 anthrax toxin receptor 1 201772_at AZIN1 antizyme inhibitor 1 212461_at AZIN1 antizyme inhibitor 1 240231_at AZIN1 Antizyme inhibitor 1 225522_at AAK1 AP2 associated kinase 1 201687_s_at API5 apoptosis inhibitor 5 228445_at AIFM2 apoptosis-inducing factor, mitochondrion-associated, 2 204859_s_at APAF1 apoptotic peptidase activating factor 1 225055_at AMZ2 Archaemetzincins-2 218185_s_at ARMC1 armadillo repeat containing 1 225283_at ARRDC4 arrestin domain containing 4 202820_at AHR aryl hydrocarbon receptor 223586_at ARNTL2 aryl hydrocarbon receptor nuclear translocator-like 2 229354_at AHRR aryl-hydrocarbon receptor repressor 203427_at ASF1A ASF1 anti-silencing function 1 homolog A (S. cerevisiae) 1552304_at ALG10 asparagine-linked glycosylation 10 homolog (yeast, alpha-1,2-glucosyltransferase) 227015_at ASPHD2 aspartate beta-hydroxylase domain containing 2 243477_at ATG10 ATG10 autophagy related 10 homolog (S. cerevisiae) 224728_at ATPAF1 ATP synthase mitochondrial F1 complex assembly factor 1 228168_at ATP5G3 ATP synthase, H+ transporting, mitochondrial F0 complex, subunit C3 (subunit 9) 237400_at ATP5S ATP synthase, H+ transporting, mitochondrial F0 complex, subunit s (factor B) 238799_at ATP5S ATP synthase, H+ transporting, mitochondrial F0 complex, subunit s (factor B) 204499_at AGTPBP1 ATP/GTP binding protein 1 223339_at ATPIF1 ATPase inhibitory factor 1 212297_at ATP13A3 ATPase type 13A3 212361_s_at ATP2A2 ATPase, Ca++ transporting, cardiac muscle, slow twitch 2 212135_s_at ATP2B4 ATPase, Ca++ transporting, plasma membrane 4 212136_at ATP2B4 ATPase, Ca++ transporting, plasma membrane 4 212062_at ATP9A ATPase, Class II, type 9A 226463_at ATP6V1C1 ATPase, H+ transporting, lysosomal 42kDa, V1 subunit C1 203066_at GALNAC4S-6ST B cell RAG associated protein 239944_at BIRC1 Baculoviral IAP repeat-containing 1 225859_at BIRC4 baculoviral IAP repeat-containing 4 218471_s_at BBS1 Bardet-Biedl syndrome 1 225976_at BTF3L4 basic transcription factor 3-like 4 233255_s_at BIVM basic, immunoglobulin-like variable motif containing 218792_s_at BSPRY B-box and SPRY domain containing 202984_s_at BAG5 BCL2-associated athanogene 5 212312_at BCL2L1 BCL2-like 1 /// BCL2-like 1 1558143_a_at BCL2L11 BCL2-like 11 (apoptosis facilitator) 209311_at BCL2L2 BCL2-like 2 219521_at B3GAT1 beta-1,3-glucuronyltransferase 1 (glucuronosyltransferase P) 222462_s_at BACE1 beta-site APP-cleaving enzyme 1 201032_at BLCAP bladder cancer associated protein 241644_at BOLA2 bolA homolog 2 (E. coli) 213578_at BMPR1A bone morphogenetic protein receptor, type IA 218024_at BRP44L brain protein 44-like 225285_at BCAT1 branched chain aminotransferase 1, cytosolic 243302_at BCKDHB Branched chain keto acid dehydrogenase E1, beta polypeptide (maple syrup urine disease) 213473_at BRAP BRCA1 associated protein 228787_s_at BCAS4 breast carcinoma amplified sequence 4 231810_at BRI3BP BRI3 binding protein 225446_at BRWD1 bromodomain and WD repeat domain containing 1 235727_at BTBD5 BTB (POZ) domain containing 5 224945_at BTBD7 BTB (POZ) domain containing 7 235248_at BTBD9 BTB (POZ) domain containing 9 205299_s_at BTN2A2 butyrophilin, subfamily 2, member A2 201131_s_at CDH1 cadherin 1, type 1, E-cadherin (epithelial) 214665_s_at CHP calcium binding protein P22 228555_at CAMK2D Calcium/calmodulin-dependent protein kinase (CaM kinase) II delta 230706_s_at CAMK2N2 calcium/calmodulin-dependent protein kinase II inhibitor 2 225759_x_at CLMN calmin (calponin-like, transmembrane) 200623_s_at CALM3 calmodulin 3 (phosphorylase kinase, delta) 212710_at CAMSAP1 calmodulin regulated spectrin-associated protein 1 232012_at CAPN1 calpain 1, (mu/I) large subunit 212345_s_at CREB3L2 cAMP responsive element binding protein 3-like 2 201989_s_at CREBL2 cAMP responsive element binding protein-like 2 201990_s_at CREBL2 cAMP responsive element binding protein-like 2 228323_at CASC5 cancer susceptibility candidate 5 226368_at CHST11 Carbohydrate (chondroitin 4) sulfotransferase 11 226372_at CHST11 Carbohydrate (chondroitin 4) sulfotransferase 11 223786_at CHST6 carbohydrate (N-acetylglucosamine 6-O) sulfotransferase 6 214082_at CA5B carbonic anhydrase VB, mitochondrial 201941_at CPD carboxypeptidase D 232198_at CRLS1 Cardiolipin synthase 1 241741_at CRLS1 cardiolipin synthase 1 203633_at CPT1A carnitine palmitoyltransferase 1A (liver) 226656_at CRTAP cartilage associated protein 225231_at CBL Cas-Br-M (murine) ecotropic retroviral transforming sequence 229010_at CBL Cas-Br-M (murine) ecotropic retroviral transforming sequence 208865_at CSNK1A1 casein kinase 1, alpha 1 208866_at CSNK1A1 casein kinase 1, alpha 1 242486_at CSNK1G1 Casein kinase 1, gamma 1 212073_at CSNK2A1 casein kinase 2, alpha 1 polypeptide /// casein