| Inward rectifier potassium channel 16 (Inward rectifier K(+) channel Kir5.1) (Potassium channel, inwardly rectifying subfamily J member 16) | KCNJ16 | Q9NPI9 | 3 |
| IQ domain-containing protein G | IQCG | Q9H095 | 3 |
| Iron-sulfur cluster co-chaperone protein HscB, mitochondrial (DnaJ homolog subfamily C member 20) (Hsc20) | HSCB DNAJC20 HSC20 | Q8IWL3 | 3 |
| Islet cell autoantigen 1-like protein (Amyotrophic lateral sclerosis 2 chromosomal region candidate gene 14 protein) (Amyotrophic lateral sclerosis 2 chromosomal region candidate gene 15 protein) | ICA1L ALS2CR14 ALS2CR15 | Q8NDH6 | 3 |
| Isthmin-2 (Thrombospondin and AMOP domain-containing isthmin-like protein 1) (Thrombospondin type-1 domain-containing protein 3) | ISM2 TAIL1 THSD3 PSEC0137 | Q6H9L7 | 3 |
| Jun dimerization protein 2 | JDP2 | Q8WYK2 | 3 |
| Junctophilin-1 (JP-1) (Junctophilin type 1) | JPH1 JP1 | Q9HDC5 | 3 |
| Juxtaposed with another zinc finger protein 1 (TAK1-interacting protein 27) (Zinc finger protein 802) | JAZF1 TIP27 ZNF802 | Q86VZ6 | 3 |
| Kallikrein 9 (Kallikrein 9, isoform CRA_b) | KLK9 hCG_1733566 | Q2XQG6 | 3 |
| Kallikrein-1 (EC 3.4.21.35) (Kidney/pancreas/salivary gland kallikrein) (Tissue kallikrein) | KLK1 | P06870 | 3 |
| Kallikrein-10 (EC 3.4.21.-) (Normal epithelial cell-specific 1) (Protease serine-like 1) | KLK10 NES1 PRSSL1 | O43240 | 3 |
| Kallikrein-13 (EC 3.4.21.-) (Kallikrein-like protein 4) (KLK-L4) | KLK13 KLKL4 | Q9UKR3 | 3 |
| Kallikrein-4 (EC 3.4.21.-) (Enamel matrix serine proteinase 1) (Kallikrein-like protein 1) (KLK-L1) (Prostase) (Serine protease 17) | KLK4 EMSP1 PRSS17 PSTS | Q9Y5K2 | 3 |
| Kallikrein-6 (EC 3.4.21.-) (Neurosin) (Protease M) (SP59) (Serine protease 18) (Serine protease 9) (Zyme) | KLK6 PRSS18 PRSS9 | Q92876 | 3 |
| Kallikrein-7 (hK7) (EC 3.4.21.117) (Serine protease 6) (Stratum corneum chymotryptic enzyme) (hSCCE) | KLK7 PRSS6 SCCE | P49862 | 3 |
| KCNK4 protein (Fragment) | KCNK4 | Q2YDA1 | 3 |
| KDEL motif-containing protein 2 | KDELC2 UNQ1904/PRO4350 | Q7Z4H8 | 3 |
| Kelch domain-containing protein 3 (Protein Peas) (Testis intracellular mediator protein) | KLHDC3 PEAS | Q9BQ90 | 3 |
| Kelch domain-containing protein 9 (Kelch/ankyrin repeat-containing cyclin A1-interacting protein) | KLHDC9 KARCA1 | Q8NEP7 | 3 |
| Kelch-like protein 20 (Kelch-like ECT2-interacting protein) (Kelch-like protein X) | KLHL20 KLEIP | Q9Y2M5 | 3 |
| Kelch-like protein 23 | KLHL23 | Q8NBE8 | 3 |
| Kelch-like protein 7 | KLHL7 | Q8IXQ5 | 3 |
| Keratin, type I cuticular Ha1 (Hair keratin, type I Ha1) (Keratin-31) (K31) | KRT31 HHA1 HKA1 KRTHA1 | Q15323 | 3 |
| Keratin, type I cuticular Ha3-I (Hair keratin, type I Ha3-I) (Keratin-33A) (K33A) | KRT33A HHA3-I HKA3A KRTHA3A | O76009 | 3 |
| Keratin, type II cuticular Hb4 (Keratin-84) (K84) (Type II hair keratin Hb4) (Type-II keratin Kb24) | KRT84 KRTHB4 | Q9NSB2 | 3 |
| Keratin, type II cuticular Hb5 (Hair keratin K2.12) (Keratin-85) (K85) (Type II hair keratin Hb5) (Type-II keratin Kb25) | KRT85 KRTHB5 | P78386 | 3 |
| Keratin, type II cuticular Hb6 (Hair keratin K2.11) (Keratin-86) (K86) (Type II hair keratin Hb6) (Type-II keratin Kb26) | KRT86 KRTHB6 | O43790 | 3 |
| Keratin, type II cytoskeletal 7 (Cytokeratin-7) (CK-7) (Keratin-7) (K7) (Sarcolectin) (Type-II keratin Kb7) | KRT7 SCL | P08729 | 3 |
| Keratin-associated protein 1-5 (High sulfur keratin-associated protein 1.5) (Keratin-associated protein 1.5) | KRTAP1-5 KAP1.5 KRTAP1.5 | Q9BYS1 | 3 |
| Keratin-associated protein 10-2 (High sulfur keratin-associated protein 10.2) (Keratin-associated protein 10.2) (Keratin-associated protein 18-2) (Keratin-associated protein 18.2) | KRTAP10-2 KAP10.2 KAP18-2 KRTAP10.2 KRTAP18-2 KRTAP18.2 | P60368 | 3 |
| Keratin-associated protein 10-3 (High sulfur keratin-associated protein 10.3) (Keratin-associated protein 10.3) (Keratin-associated protein 18-3) (Keratin-associated protein 18.3) | KRTAP10-3 KAP10.3 KAP18-3 KRTAP10.3 KRTAP18-3 KRTAP18.3 | P60369 | 3 |
| Keratin-associated protein 17-1 (Keratin-associated protein 16.1) | KRTAP17-1 KAP17.1 KRTAP16.1 | Q9BYP8 | 3 |
| Keratin-associated protein 23-1 | KRTAP23-1 KAP23.1 | A1A580 | 3 |
| Keratin-associated protein 3-2 (High sulfur keratin-associated protein 3.2) (Keratin-associated protein 3.2) | KRTAP3-2 KAP3.2 KRTAP3.2 | Q9BYR7 | 3 |
| Keratin-associated protein 4-1 (Keratin-associated protein 4-10) (Keratin-associated protein 4.1) (Keratin-associated protein 4.10) (Ultrahigh sulfur keratin-associated protein 4.10) | KRTAP4-1 KAP4.10 KRTAP4-10 KRTAP4.1 KRTAP4.10 | Q9BYQ7 | 3 |
| Keratin-associated protein 4-2 (Keratin-associated protein 4.2) (Ultrahigh sulfur keratin-associated protein 4.2) | KRTAP4-2 KAP4.2 KRTAP4.2 | Q9BYR5 | 3 |
| Keratin-associated protein 4-9 (Keratin-associated protein 4.9) (Ultrahigh sulfur keratin-associated protein 4.9) | KRTAP4-9 KAP4.9 KRTAP4.9 | Q9BYQ8 | 3 |
| Keratin-associated protein 5-3 (Keratin-associated protein 5-9) (Keratin-associated protein 5.3) (Keratin-associated protein 5.9) (UHS KerB-like) (Ultrahigh sulfur keratin-associated protein 5.3) | KRTAP5-3 KAP5-9 KAP5.3 KRTAP5-9 KRTAP5.3 KRTAP5.9 | Q6L8H2 | 3 |
| Keratin-associated protein 5-4 (Keratin-associated protein 5.4) (Ultrahigh sulfur keratin-associated protein 5.4) | KRTAP5-4 KAP5.4 KRTAP5.4 | Q6L8H1 | 3 |
| Keratin-associated protein 5-8 (Keratin, ultra high-sulfur matrix protein B) (Keratin-associated protein 5.8) (UHS keratin B) (UHS KerB) (Ultrahigh sulfur keratin-associated protein 5.8) | KRTAP5-8 KAP5.8 KRTAP5.8 UHSKB | O75690 | 3 |
| Keratin-associated protein 9-4 (Keratin-associated protein 9.4) (Ultrahigh sulfur keratin-associated protein 9.4) | KRTAP9-4 KAP9.4 KRTAP9.4 | Q9BYQ2 | 3 |
| Keratin-associated protein 9-8 (Keratin-associated protein 9.8) (Ultrahigh sulfur keratin-associated protein 9.8) | KRTAP9-8 KAP9.8 KRTAP9.8 | Q9BYQ0 | 3 |
| Keratinocyte differentiation-associated protein | KRTDAP KDAP UNQ467/PRO826 | P60985 | 3 |
| Ketimine reductase mu-crystallin (EC 1.5.1.25) (NADP-regulated thyroid-hormone-binding protein) | CRYM THBP | Q14894 | 3 |
| Ketohexokinase (EC 2.7.1.3) (Hepatic fructokinase) | KHK | P50053 | 3 |
| KIF1-binding protein | KIAA1279 KBP | Q96EK5 | 3 |
| KIF5B protein (Fragment) | KIF5B | Q6P164 | 3 |
| Killer cell immunoglobulin-like receptor 2DL3 (CD158 antigen-like family member B2) (KIR-023GB) (Killer inhibitory receptor cl 2-3) (MHC class I NK cell receptor) (NKAT2a) (NKAT2b) (Natural killer-associated transcript 2) (NKAT-2) (p58 natural killer cell receptor clone CL-6) (p58 NK receptor CL-6) (p58.2 MHC class-I-specific NK receptor) (CD antigen CD158b2) | KIR2DL3 CD158B2 KIRCL23 NKAT2 | P43628 | 3 |
| Killer cell immunoglobulin-like receptor 3DL3 (CD158 antigen-like family member Z) (Killer cell inhibitory receptor 1) (CD antigen CD158z) | KIR3DL3 CD158Z KIR3DL7 KIRC1 | Q8N743 | 3 |
| Kin of IRRE-like protein 2 (Kin of irregular chiasm-like protein 2) (Nephrin-like protein 3) | KIRREL2 NEPH3 UNQ5827/PRO19646 | Q6UWL6 | 3 |
| Kinesin-like protein KIF15 (Kinesin-like protein 2) (hKLP2) (Kinesin-like protein 7) (Serologically defined breast cancer antigen NY-BR-62) | KIF15 KLP2 KNSL7 | Q9NS87 | 3 |
| Kinesin-like protein KIF21A (Kinesin-like protein KIF2) (Renal carcinoma antigen NY-REN-62) | KIF21A KIAA1708 KIF2 | Q7Z4S6 | 3 |
| Kinesin-like protein KIF2C (Kinesin-like protein 6) (Mitotic centromere-associated kinesin) (MCAK) | KIF2C KNSL6 | Q99661 | 3 |
| Kinetochore-associated protein 1 (Rough deal homolog) (HsROD) (Rod) (hRod) | KNTC1 KIAA0166 | P50748 | 3 |
| Kinetochore-associated protein DSN1 homolog | DSN1 C20orf172 MIS13 | Q9H410 | 3 |
| Kit ligand (Mast cell growth factor) (MGF) (Stem cell factor) (SCF) (c-Kit ligand) [Cleaved into: Soluble KIT ligand (sKITLG)] | KITLG MGF SCF | P21583 | 3 |
| KRAB domain-containing protein ZNF747 | ZNF747 | Q9BV97 | 3 |
| Kremen protein 1 (Dickkopf receptor) (Kringle domain-containing transmembrane protein 1) (Kringle-containing protein marking the eye and the nose) | KREMEN1 KREMEN KRM1 | Q96MU8 | 3 |
| Kringle-containing transmembrane protein 2 isoform b variant (Fragment) | 0 | Q53F67 | 3 |
| Krueppel-like factor 1 (Erythroid krueppel-like transcription factor) (EKLF) | KLF1 EKLF | Q13351 | 3 |
| Krueppel-like factor 11 (Transforming growth factor-beta-inducible early growth response protein 2) (TGFB-inducible early growth response protein 2) (TIEG-2) | KLF11 FKLF TIEG2 | O14901 | 3 |
| Krueppel-like factor 15 (Kidney-enriched krueppel-like factor) | KLF15 KKLF | Q9UIH9 | 3 |
| Kruppel-like factor 14 | KLF14 hCG_1807178 | A4D1N0 | 3 |
| Kynurenine--oxoglutarate transaminase 3 (EC 2.6.1.7) (Cysteine-S-conjugate beta-lyase 2) (EC 4.4.1.13) (Kynurenine aminotransferase III) (KATIII) (Kynurenine--glyoxylate transaminase) (EC 2.6.1.63) (Kynurenine--oxoglutarate transaminase III) | CCBL2 KAT3 | Q6YP21 | 3 |
| Lactoperoxidase (LPO) (EC 1.11.1.7) (Salivary peroxidase) (SPO) | LPO SAPX | P22079 | 3 |
| Late cornified envelope protein 1E (Late envelope protein 5) | LCE1E LEP5 | Q5T753 | 3 |
| Late cornified envelope protein 2B (Late envelope protein 10) (Skin-specific protein Xp5) (Small proline-rich-like epidermal differentiation complex protein 1B) | LCE2B LEP10 SPRL1B XP5 | O14633 | 3 |
| Late cornified envelope protein 3B (Late envelope protein 14) | LCE3B LEP14 | Q5TA77 | 3 |
| LEM domain-containing protein 2 (hLEM2) | LEMD2 | Q8NC56 | 3 |
| Leucine zipper putative tumor suppressor 1 (F37/esophageal cancer-related gene-coding leucine-zipper motif) (Fez1) | LZTS1 FEZ1 | Q9Y250 | 3 |
| Leucine--tRNA ligase, cytoplasmic (EC 6.1.1.4) (Leucyl-tRNA synthetase) (LeuRS) | LARS KIAA1352 | Q9P2J5 | 3 |
| Leucine-rich repeat LGI family member 3 (LGI1-like protein 4) (Leucine-rich glioma-inactivated protein 3) | LGI3 LGIL4 UNQ8190/PRO23199 | Q8N145 | 3 |
| Leucine-rich repeat transmembrane protein FLRT3 (Fibronectin-like domain-containing leucine-rich transmembrane protein 3) | FLRT3 KIAA1469 UNQ856/PRO1865 | Q9NZU0 | 3 |
| Leucine-rich repeat-containing G protein-coupled receptor 4 variant (Fragment) | 0 | Q59ER8 | 3 |
| Leucine-rich repeat-containing protein 1 (LANO adapter protein) (LAP and no PDZ protein) | LRRC1 LANO | Q9BTT6 | 3 |
| Leucine-rich repeat-containing protein 41 (Protein Muf1) | LRRC41 MUF1 PP7759 | Q15345 | 3 |
| Leucine-rich repeat-containing protein 4B (Netrin-G3 ligand) (NGL-3) | LRRC4B LRIG4 | Q9NT99 | 3 |
| Leucine-rich repeat-containing protein 56 | LRRC56 | Q8IYG6 | 3 |
| Leucine-rich repeat-containing protein 8E | LRRC8E | Q6NSJ5 | 3 |
| Leukocyte immunoglobulin-like receptor subfamily A member 1 (CD85 antigen-like family member I) (Leukocyte immunoglobulin-like receptor 6) (LIR-6) (CD antigen CD85i) | LILRA1 LIR6 | O75019 | 3 |
| Leukocyte receptor cluster member 9 | LENG9 | Q96B70 | 3 |
| Leupaxin | LPXN LDLP | O60711 | 3 |
| LHX1 protein (Fragment) | LHX1 | Q58F18 | 3 |
| LIM and senescent cell antigen-like-containing domain protein 2 (LIM-like protein 2) (Particularly interesting new Cys-His protein 2) (PINCH-2) | LIMS2 PINCH2 | Q7Z4I7 | 3 |
| LIM domain kinase 1 (LIMK-1) (EC 2.7.11.1) | LIMK1 LIMK | P53667 | 3 |
| LIM domain kinase 2 (LIMK-2) (EC 2.7.11.1) | LIMK2 | P53671 | 3 |
| LIM domain only protein 3 (LMO-3) (Neuronal-specific transcription factor DAT1) (Rhombotin-3) | LMO3 RBTN3 RBTNL2 RHOM3 | Q8TAP4 | 3 |
| Linker for activation of T-cells family member 2 (Linker for activation of B-cells) (Membrane-associated adapter molecule) (Non-T-cell activation linker) (Williams-Beuren syndrome chromosomal region 15 protein) (Williams-Beuren syndrome chromosomal region 5 protein) | LAT2 LAB NTAL WBS15 WBSCR15 WBSCR5 HSPC046 | Q9GZY6 | 3 |
| Lipase maturation factor 1 (Putative uncharacterized protein LA16c-360B4.1) (cDNA FLJ35731 fis, clone TESTI2003139) | LMF1 LA16c-360B4.1 hCG_22432 | B3KS80 | 3 |
| Lipid phosphate phosphohydrolase 1 (EC 3.1.3.4) (PAP2-alpha) (Phosphatidate phosphohydrolase type 2a) (Phosphatidic acid phosphatase 2a) (PAP-2a) (PAP2a) | PPAP2A LPP1 | O14494 | 3 |
| Lipolysis-stimulated lipoprotein receptor | LSR LISCH | Q86X29 | 3 |
| Lipoma HMGIC fusion partner | LHFP | Q9Y693 | 3 |
| Liprin-beta-2 (Protein tyrosine phosphatase receptor type f polypeptide-interacting protein-binding protein 2) (PTPRF-interacting protein-binding protein 2) | PPFIBP2 | Q8ND30 | 3 |
| LMBR1 domain-containing protein 2 | LMBRD2 | Q68DH5 | 3 |
| Long-chain-fatty-acid--CoA ligase 1 (EC 6.2.1.3) (Acyl-CoA synthetase 1) (ACS1) (Long-chain acyl-CoA synthetase 1) (LACS 1) (Long-chain acyl-CoA synthetase 2) (LACS 2) (Long-chain fatty acid-CoA ligase 2) (Palmitoyl-CoA ligase 1) (Palmitoyl-CoA ligase 2) | ACSL1 FACL1 FACL2 LACS LACS1 LACS2 | P33121 | 3 |
| Long-chain-fatty-acid--CoA ligase 5 (EC 6.2.1.3) (Long-chain acyl-CoA synthetase 5) (LACS 5) | ACSL5 ACS5 FACL5 UNQ633/PRO1250 | Q9ULC5 | 3 |
| Low-density lipoprotein receptor class A domain-containing protein 3 | LDLRAD3 | Q86YD5 | 3 |
| LY6/PLAUR domain containing 3 (cDNA PSEC0157 fis, clone PLACE1008238, highly similar to Ly6/PLAUR domain-containing protein 3) (cDNA, FLJ95643, Homo sapiens GPI-anchored metastasis-associated protein homolog(C4.4A), mRNA) | LYPD3 hCG_20277 | B2RBR3 | 3 |
| Ly6/PLAUR domain-containing protein 5 | LYPD5 UNQ1908/PRO4356 | Q6UWN5 | 3 |
| Lymphokine-activated killer T-cell-originated protein kinase (EC 2.7.12.2) (Cancer/testis antigen 84) (CT84) (MAPKK-like protein kinase) (Nori-3) (PDZ-binding kinase) (Spermatogenesis-related protein kinase) (SPK) (T-LAK cell-originated protein kinase) | PBK TOPK | Q96KB5 | 3 |