| HOOK1 protein (Fragment) | HOOK1 | Q32Q39 | 2 |
| Hormonally up-regulated neu tumor-associated kinase (EC 2.7.11.1) (B19) (Serine/threonine-protein kinase MAK-V) | HUNK MAKV | P57058 | 2 |
| Host cell factor 2 (HCF-2) (C2 factor) | HCFC2 | Q9Y5Z7 | 2 |
| HRAS-like suppressor 3 (HRSL3) (EC 3.1.1.32) (EC 3.1.1.4) (Adipose-specific phospholipase A2) (AdPLA) (Group XVI phospholipase A1/A2) (H-rev 107 protein homolog) (H-REV107) (HREV107-1) (HRAS-like suppressor 1) (HREV107-3) (Renal carcinoma antigen NY-REN-65) | PLA2G16 HRASLS3 HREV107 | P53816 | 2 |
| HRV Fab 025-VL (Fragment) | 0 | A2IPI4 | 2 |
| HRV Fab 026-VL (Fragment) | 0 | A2IPI5 | 2 |
| Hsc70-interacting protein (Fragment) | ST13 | H7C3I1 | 2 |
| Hsc70-interacting protein (Hip) (Aging-associated protein 2) (Progesterone receptor-associated p48 protein) (Protein FAM10A1) (Putative tumor suppressor ST13) (Renal carcinoma antigen NY-REN-33) (Suppression of tumorigenicity 13 protein) | ST13 AAG2 FAM10A1 HIP SNC6 | Q2TU77 | 2 |
| Hsp70-binding protein 1 (Fragment) | HSPBP1 | K7EN20 | 2 |
| Hsp70-binding protein 1 (HspBP1) (Heat shock protein-binding protein 1) (Hsp70-binding protein 2) (HspBP2) (Hsp70-interacting protein 1) (Hsp70-interacting protein 2) | HSPBP1 HSPBP PP1845 | O95351 | 2 |
| Hsp90 co-chaperone Cdc37 (Fragment) | CDC37 | K7EIU0 | 2 |
| HSP90AA1 protein (Fragment) | HSP90AA1 | Q2VPJ6 | 2 |
| HSPC141 | 0 | Q9P019 | 2 |
| HSPG2 protein (Fragment) | HSPG2 | Q2VPA1 | 2 |
| Humer (Fragment) | mer5 | Q14579 | 2 |
| Huntingtin (Fragment) | 0 | D2CTD8 | 2 |
| Huntingtin interacting protein-1-related (Fragment) | 0 | Q59FD0 | 2 |
| Hyaluronan and proteoglycan link protein 4 (Brain link protein 2) | HAPLN4 BRAL2 KIAA1926 | Q86UW8 | 2 |
| Hyaluronan synthase 1 | HAS1 | M0R2V0 | 2 |
| Hyaluronan synthase 1 (Hyaluronan synthase 1, isoform CRA_b) | HAS1 hCG_91965 | G3V1S7 | 2 |
| Hyaluronidase-3 (Hyal-3) (EC 3.2.1.35) (Hyaluronoglucosaminidase-3) (Lung carcinoma protein 3) (LuCa-3) | HYAL3 LUCA3 | O43820 | 2 |
| Hydroxyacid oxidase 2 (HAOX2) (EC 1.1.3.15) ((S)-2-hydroxy-acid oxidase, peroxisomal) (Cell growth-inhibiting gene 16 protein) (Long chain alpha-hydroxy acid oxidase) (Long-chain L-2-hydroxy acid oxidase) | HAO2 HAOX2 GIG16 | Q9NYQ3 | 2 |
| Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) (HGPRTase) (EC 2.4.2.8) | HPRT1 HPRT | A6NHF0 | 2 |
| Hypoxia-inducible factor 1-alpha inhibitor | HIF1AN | E9PNR8 | 2 |
| IFITM2 protein (Interferon induced transmembrane protein 2 (1-8D)) | IFITM2 | Q6IBB0 | 2 |
| IGFBP5 protein (Fragment) | IGFBP5 | Q96HT5 | 2 |
| IGL@ protein | IGL@ | Q6GMX3 | 2 |
| IGL@ protein | IGL@ | Q6PIQ7 | 2 |
| IGL@ protein | IGL@ | Q6NS95 | 2 |
| IGL@ protein | IGL@ | Q5FWF9 | 2 |
| IGL@ protein | IGL@ | Q8N355 | 2 |
| IGSF8 protein | 0 | Q96EW3 | 2 |
| Immunglobulin heavy chain variable region (Fragment) | 0 | Q0ZCI6 | 2 |
| Immunity-related GTPase family M protein (EC 3.6.5.-) (Immunity-related GTPase family M protein 1) (Interferon-inducible protein 1) (LPS-stimulated RAW 264.7 macrophage protein 47 homolog) (LRG-47) | IRGM IFI1 IRGM1 LRG47 | A1A4Y4 | 2 |
| Immunoblobulin G1 Fab heavy chain variable region (Fragment) | VHCH1 | A4F255 | 2 |
| Immunoblobulin light chain (Fragment) | 0 | Q0KKI6 | 2 |
| Immunoglobulin alpha-2 heavy chain (Immunoglobulin alpha-2 heavy chain BUT) | 0 | P0DOX2 | 2 |
| Immunoglobulin gamma-1 heavy chain (Immunoglobulin gamma-1 heavy chain NIE) | 0 | P0DOX5 | 2 |
| Immunoglobulin heavy constant alpha 2 (Fragment) | IGHA2 | A0A0G2JMB2 | 2 |
| Immunoglobulin heavy constant delta (Ig delta chain C region) (Ig delta chain C region NIG-65) (Ig delta chain C region WAH) | IGHD | A0A087WUS7 | 2 |
| Immunoglobulin heavy constant gamma 1 (Fragment) | IGHG1 | A0A0A0MS08 | 2 |
| Immunoglobulin heavy constant gamma 3 (HDC) (Heavy chain disease protein) (Ig gamma-3 chain C region) | IGHG3 | A0A075B6N8 | 2 |
| Immunoglobulin heavy variable 1-46 (Ig heavy chain V-I region DOT) (Ig heavy chain V-I region HG3) (Ig heavy chain V-I region Mot) | IGHV1-46 | P06326 | 2 |
| Immunoglobulin heavy variable 1-69 (Ig heavy chain V-I region EU) (Ig heavy chain V-I region SIE) (Ig heavy chain V-I region WOL) | IGHV1-69 | P01761 | 2 |
| Immunoglobulin heavy variable 1-69 (Ig heavy chain V-I region EU) (Ig heavy chain V-I region SIE) (Ig heavy chain V-I region WOL) | IGHV1-69 | P01760 | 2 |
| Immunoglobulin heavy variable 1-8 | IGHV1-8 | P0DP01 | 2 |
| Immunoglobulin heavy variable 2-26 | IGHV2-26 | A0A0B4J1V2 | 2 |
| Immunoglobulin heavy variable 2-70D (Fragment) | IGHV2-70D | A0A0C4DH43 | 2 |
| Immunoglobulin heavy variable 3-21 | IGHV3-21 | A0A0B4J1V1 | 2 |
| Immunoglobulin heavy variable 3-23 (Ig heavy chain V-III region LAY) (Ig heavy chain V-III region POM) (Ig heavy chain V-III region TEI) (Ig heavy chain V-III region TIL) (Ig heavy chain V-III region TUR) (Ig heavy chain V-III region VH26) (Ig heavy chain V-III region WAS) (Ig heavy chain V-III region ZAP) | IGHV3-23 | P01776 | 2 |
| Immunoglobulin heavy variable 3-30 (Ig heavy chain V-III region BUR) (Ig heavy chain V-III region CAM) (Ig heavy chain V-III region GA) (Ig heavy chain V-III region NIE) | IGHV3-30 | P01773 | 2 |
| Immunoglobulin heavy variable 3-35 (non-functional) (Fragment) | IGHV3-35 | A0A0C4DH35 | 2 |
| Immunoglobulin heavy variable 3-43 | IGHV3-43 | A0A0B4J1X8 | 2 |
| Immunoglobulin heavy variable 3-48 (Ig heavy chain V-III region WEA) | IGHV3-48 | A0A0C4DH37 | 2 |
| Immunoglobulin heavy variable 3-64 | IGHV3-64 | A0A075B6Q5 | 2 |
| Immunoglobulin heavy variable 3-66 | IGHV3-66 | A0A0C4DH42 | 2 |
| Immunoglobulin heavy variable 3-7 (Ig heavy chain V-III region GAL) (Ig heavy chain V-III region GAR) (Ig heavy chain V-III region JON) | IGHV3-7 | P80419 | 2 |
| Immunoglobulin heavy variable 3-72 | IGHV3-72 | A0A087WW89 | 2 |
| Immunoglobulin heavy variable 3/OR15-7 (pseudogene) (Fragment) | IGHV3OR15-7 | A0A075B7D8 | 2 |
| Immunoglobulin heavy variable 4-4 | IGHV4-4 | A0A075B6R2 | 2 |
| Immunoglobulin heavy variable 4-59 (Ig heavy chain V-II region NEWM) | IGHV4-59 | A0A0C4DH40 | 2 |
| Immunoglobulin heavy variable 6-1 | IGHV6-1 | A0A0B4J1U7 | 2 |
| Immunoglobulin kappa constant (Ig kappa chain C region) (Ig kappa chain C region AG) (Ig kappa chain C region CUM) (Ig kappa chain C region EU) (Ig kappa chain C region OU) (Ig kappa chain C region ROY) (Ig kappa chain C region TI) | IGKC | A0A087X130 | 2 |
| Immunoglobulin kappa joining 1 | IGKJ1 | A0A0A0MT89 | 2 |
| Immunoglobulin kappa variable 1-12 | IGKV1-12 | A0A0C4DH73 | 2 |
| Immunoglobulin kappa variable 1-27 | IGKV1-27 | A0A075B6S5 | 2 |
| Immunoglobulin kappa variable 1-39 (Ig kappa chain V-I region DEE) (Ig kappa chain V-I region Hau) (Ig kappa chain V-I region Mev) (Ig kappa chain V-I region OU) (Ig kappa chain V-I region Walker) | IGKV1-39 | P01606 | 2 |
| Immunoglobulin kappa variable 1-5 (Ig kappa chain V-I region CAR) (Ig kappa chain V-I region EU) (Ig kappa chain V-I region HK102) (Ig kappa chain V-I region Kue) | IGKV1-5 | P01604 | 2 |
| Immunoglobulin kappa variable 1-9 | IGKV1-9 | A0A0C4DH69 | 2 |
| Immunoglobulin kappa variable 1D-33 (Ig kappa chain V-I region AG) (Ig kappa chain V-I region Bi) (Ig kappa chain V-I region Lay) (Ig kappa chain V-I region Ni) (Ig kappa chain V-I region Rei) (Ig kappa chain V-I region Roy) (Ig kappa chain V-I region Scw) (Ig kappa chain V-I region WAT) | IGKV1D-33 | P01595 | 2 |
| Immunoglobulin kappa variable 1D-33 (Ig kappa chain V-I region AG) (Ig kappa chain V-I region Bi) (Ig kappa chain V-I region Lay) (Ig kappa chain V-I region Ni) (Ig kappa chain V-I region Rei) (Ig kappa chain V-I region Roy) (Ig kappa chain V-I region Scw) (Ig kappa chain V-I region WAT) | IGKV1D-33 | P80362 | 2 |
| Immunoglobulin kappa variable 1D-8 | IGKV1D-8 | A0A087WSZ0 | 2 |
| Immunoglobulin kappa variable 2-24 | IGKV2-24 | A0A0C4DH68 | 2 |
| Immunoglobulin kappa variable 2-30 (Ig kappa chain V-II region RPMI 6410) | IGKV2-30 | A0A075B6S3 | 2 |
| Immunoglobulin kappa variable 2-40 | IGKV2-40 | A0A087WW87 | 2 |
| Immunoglobulin kappa variable 2-40 (Immunoglobulin kappa variable 2D-40) | IGKV2-40 IGKV2D-40 | A0A087X0Q4 | 2 |
| Immunoglobulin kappa variable 2D-28 (Ig kappa chain V-II region FR) (Ig kappa chain V-II region GM607) (Ig kappa chain V-II region MIL) (Ig kappa chain V-II region TEW) | IGKV2D-28 | A0A0A0MTQ6 | 2 |
| Immunoglobulin kappa variable 3/OR2-268 (non-functional) (Fragment) | IGKV3OR2-268 | A0A0C4DH90 | 2 |
| Immunoglobulin kappa variable 4-1 (Ig kappa chain V-IV region B17) (Ig kappa chain V-IV region JI) (Ig kappa chain V-IV region Len) (Ig kappa chain V-IV region STH) | IGKV4-1 | P06314 | 2 |
| Immunoglobulin lambda variable 1-44 (Ig lambda chain V-I region MEM) (Ig lambda chain V-I region VOR) | IGLV1-44 | P06887 | 2 |
| Immunoglobulin lambda variable 1-47 (Ig lambda chain V-I region HA) (Ig lambda chain V-I region WAH) | IGLV1-47 | A0A075B6I8 | 2 |
| Immunoglobulin lambda variable 1-51 (Ig lambda chain V-I region BL2) (Ig lambda chain V-I region EPS) (Ig lambda chain V-I region NEW) (Ig lambda chain V-I region NIG-64) | IGLV1-51 | A0A075B6I5 | 2 |
| Immunoglobulin lambda variable 10-54 | IGLV10-54 | A0A075B6I4 | 2 |
| Immunoglobulin lambda variable 3-1 (Ig lambda chain V-IV region Bau) (Ig lambda chain V-IV region MOL) (Ig lambda chain V-IV region X) | IGLV3-1 | P06889 | 2 |
| Immunoglobulin lambda variable 3-22 | IGLV3-22 | A0A075B6J6 | 2 |
| Immunoglobulin lambda variable 4-60 | IGLV4-60 | A0A075B6I1 | 2 |
| Immunoglobulin lambda variable 6-57 (Ig lambda chain V-VI region AR) (Ig lambda chain V-VI region EB4) (Ig lambda chain V-VI region NIG-48) (Ig lambda chain V-VI region SUT) (Ig lambda chain V-VI region WLT) | IGLV6-57 | P06319 | 2 |
| Immunoglobulin lambda variable 6-57 (Ig lambda chain V-VI region AR) (Ig lambda chain V-VI region EB4) (Ig lambda chain V-VI region NIG-48) (Ig lambda chain V-VI region SUT) (Ig lambda chain V-VI region WLT) | IGLV6-57 | P06317 | 2 |
| Immunoglobulin lambda variable 7-43 (Ig lambda chain V region 4A) | IGLV7-43 | A0A0B4J1U2 | 2 |
| Immunoglobulin lambda-1 light chain (Immunoglobulin lambda-1 light chain MCG) | 0 | P0DOX8 | 2 |
| Immunoglobulin mu heavy chain (Immunoglobulin mu heavy chain OU) | 0 | P0DOX6 | 2 |
| Immunoglobulin-like and fibronectin type III domain-containing protein 1 (EEF1A2-binding protein 1) (KY-interacting protein 1) | IGFN1 EEF1A2BP1 KYIP1 | Q86VF2 | 2 |
| IMP dehydrogenase 2 (Fragment) | IMPDH2 | Q6QE17 | 2 |
| Importin subunit alpha-1 (Karyopherin subunit alpha-2) (RAG cohort protein 1) (SRP1-alpha) | KPNA2 RCH1 SRP1 | B9EJD6 | 2 |
| Importin subunit alpha-5 (Karyopherin subunit alpha-1) (Nucleoprotein interactor 1) (NPI-1) (RAG cohort protein 2) (SRP1-beta) [Cleaved into: Importin subunit alpha-5, N-terminally processed] | KPNA1 RCH2 | Q9BQ56 | 2 |
| Importin subunit beta-1 (Fragment) | KPNB1 | J3KTM9 | 2 |
| Importin-11 (Fragment) | IPO11 | D6RCN7 | 2 |
| Importin-4 | IPO4 | H0YLV0 | 2 |
| Importin-4 | IPO4 | H0YN14 | 2 |
| Importin-4 (Imp4) (Importin-4b) (Imp4b) (Ran-binding protein 4) (RanBP4) | IPO4 IMP4B RANBP4 | Q9BTI4 | 2 |