| Hippocampus abundant transcript-like protein 1 | Hiatl1 | Q8CIA9 | 1 |
| Histamine H3 receptor (H3R) (HH3R) | Hrh3 | P58406 | 1 |
| Histamine H4 receptor (H4R) (HH4R) | Hrh4 | Q91ZY2 | 1 |
| Histidine triad nucleotide-binding protein 2, mitochondrial (HINT-2) (EC 3.-.-.-) (HINT-3) | Hint2 | Q9D0S9 | 1 |
| Histidine-rich glycoprotein (Histidine-proline-rich glycoprotein) (HPRG) | Hrg | Q9ESB3 | 1 |
| Histo-blood group ABO system transferase (Cis-AB transferase) (Fucosylglycoprotein 3-alpha-galactosyltransferase) (Fucosylglycoprotein alpha-N-acetylgalactosaminyltransferase) (Glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase) (EC 2.4.1.40) (Glycoprotein-fucosylgalactoside alpha-galactosyltransferase) (EC 2.4.1.37) (Histo-blood group A transferase) (A transferase) (Histo-blood group B transferase) (B transferase) (NAGAT) | Abo | P38649 | 1 |
| Histocompatibility 2, Q region locus 2 (MHC class I antigen) (Protein H2-Q2) | H2-Q2 Gm11132 | Q4KN81 | 1 |
| Histocompatibility antigen 60a | H60a H60 | Q3TDZ7 | 1 |
| Histone acetyltransferase KAT2B (EC 2.3.1.48) (Histone acetyltransferase PCAF) (Histone acetylase PCAF) (Lysine acetyltransferase 2B) (P300/CBP-associated factor) (P/CAF) | Kat2b Pcaf | Q9JHD1 | 1 |
| Histone acetyltransferase KAT7 (EC 2.3.1.48) (Histone acetyltransferase binding to ORC1) (Lysine acetyltransferase 7) (MOZ, YBF2/SAS3, SAS2 and TIP60 protein 2) (MYST-2) | Kat7 Hbo1 Myst2 | Q5SVQ0 | 1 |
| Histone deacetylase (EC 3.5.1.98) | Hdac3 mCG_128932 | Q3UM33 | 1 |
| Histone deacetylase 1 (HD1) (EC 3.5.1.98) | Hdac1 | O09106 | 1 |
| Histone deacetylase complex subunit SAP130 (130 kDa Sin3-associated polypeptide) (Sin3-associated polypeptide p130) | Sap130 | Q8BIH0 | 1 |
| Histone demethylase UTY (Ubiquitously transcribed tetratricopeptide repeat) | Uty mCG_121149 | G3X9F2 | 1 |
| Histone H1.3 (H1 VAR.4) (H1d) | Hist1h1d H1f3 | P43277 | 1 |
| Histone H2A | Gm5382 EG385328 | Q497L1 | 1 |
| Histone H2A.V (H2A.F/Z) | H2afv H2av | Q3THW5 | 1 |
| Histone H2B type 1-F/J/L (H2B 291A) | Hist1h2bf H2b-f; Hist1h2bj H2b-j; Hist1h2bl H2b-l; Hist1h2bn H2b-n | P10853 | 1 |
| Histone H2B type 1-P | Hist1h2bp | Q8CGP2 | 1 |
| Histone H2B type 2-B (H2b 616) | Hist2h2bb | Q64525 | 1 |
| Histone H3 methyltransferase DOT1 variant a (Protein Dot1l) | Dot1l | Q6XZL8 | 1 |
| Histone H4 transcription factor (Histone nuclear factor P) (HiNF-P) (MBD2-interacting zinc finger protein) (Methyl-CpG-binding protein 2-interacting zinc finger protein) | Hinfp Mizf | Q8K1K9 | 1 |
| Histone lysine demethylase PHF8 (EC 1.14.11.27) (PHD finger protein 8) | Phf8 Kiaa1111 | Q80TJ7 | 1 |
| Histone-lysine N-methyltransferase 2A (Lysine N-methyltransferase 2A) (EC 2.1.1.43) (ALL-1) (Myeloid/lymphoid or mixed-lineage leukemia) (Myeloid/lymphoid or mixed-lineage leukemia protein 1) (Zinc finger protein HRX) [Cleaved into: MLL cleavage product N320 (N-terminal cleavage product of 320 kDa) (p320); MLL cleavage product C180 (C-terminal cleavage product of 180 kDa) (p180)] | Kmt2a All1 Hrx Mll Mll1 | P55200 | 1 |
| Histone-lysine N-methyltransferase 2B (Lysine N-methyltransferase 2B) (EC 2.1.1.43) (Myeloid/lymphoid or mixed-lineage leukemia protein 4 homolog) (Trithorax homolog 2) (WW domain-binding protein 7) (WBP-7) | Kmt2b Mll2 Trx2 Wbp7 | O08550 | 1 |
| Histone-lysine N-methyltransferase 2D | Kmt2d Mll2 | J3KMN0 | 1 |
| Histone-lysine N-methyltransferase NSD3 (EC 2.1.1.43) (Nuclear SET domain-containing protein 3) (Wolf-Hirschhorn syndrome candidate 1-like protein 1 homolog) (WHSC1-like protein 1) | Whsc1l1 Nsd3 | Q6P2L6 | 1 |
| Histone-lysine N-methyltransferase SMYD3 (EC 2.1.1.43) (SET and MYND domain-containing protein 3) (Zinc finger MYND domain-containing protein 1) | Smyd3 Zmynd1 | Q9CWR2 | 1 |
| Histone-lysine N-methyltransferase SUV420H1 (EC 2.1.1.43) (Suppressor of variegation 4-20 homolog 1) (Su(var)4-20 homolog 1) (Suv4-20h1) | Suv420h1 | Q3U8K7 | 1 |
| Histone-lysine N-methyltransferase SUV420H2 (EC 2.1.1.43) (Suppressor of variegation 4-20 homolog 2) (Su(var)4-20 homolog 2) (Suv4-20h2) | Suv420h2 | Q6Q783 | 1 |
| HMG box transcription factor BBX (Bobby sox homolog) (HMG box-containing protein 2) | Bbx Hbp2 | Q8VBW5 | 1 |
| HMG box-containing protein 1 (HMG box transcription factor 1) (High mobility group box transcription factor 1) | Hbp1 | Q8R316 | 1 |
| Homeo box A1 (Homeobox A1) (Homeobox protein Hox-A1) | Hoxa1 mCG_121168 | B9EHK7 | 1 |
| Homeobox gene HB9 (Motor neuron and pancreas homeobox 1) (Motor neuron and pancreas homeobox protein 1) | Mnx1 Hlxb9 mCG_7342 | A2RSX2 | 1 |
| Homeobox protein DLX-4 (Homeobox protein DLX-7) | Dlx4 Dlx7 | P70436 | 1 |
| Homeobox protein Hox-A2 (Homeobox protein Hox-1.11) (Hox1.11) | Hoxa2 Hox-1.11 Hoxa-2 | P31245 | 1 |
| Homeobox protein Hox-B3 (Homeobox protein Hox-2.7) (Homeobox protein MH-23) | Hoxb3 Hox-2.7 Hoxb-3 | P09026 | 1 |
| Homeobox protein Hox-B4 (Homeobox protein Hox-2.6) | Hoxb4 Hox-2.6 Hoxb-4 | P10284 | 1 |
| Homeobox protein Hox-D8 (Homeobox protein Hox-4.3) (Homeobox protein Hox-5.4) | Hoxd8 Hox-4.3 Hoxd-8 | P23463 | 1 |
| Homeobox protein MOX-2 (Mesenchyme homeobox 2) | Meox2 Gax Mox-2 Mox2 | P32443 | 1 |
| Homeobox protein Nkx-2.3 (Homeobox protein NK-2 homolog 3) (Homeobox protein NK-2 homolog C) (Nkx2-C) | Nkx2-3 Nkx-2.3 Nkx2c | P97334 | 1 |
| Homeobox protein prophet of Pit-1 (PROP-1) (Pituitary-specific homeodomain factor) | Prop1 Prop-1 | P97458 | 1 |
| Homeobox protein Rhox5 (Reproductive homeobox 5) | Rhox5 mCG_119349 | Q3UJH4 | 1 |
| Homeobox protein SIX5 (DM locus-associated homeodomain protein homolog) (Sine oculis homeobox homolog 5) | Six5 Dmahp | P70178 | 1 |
| Homeobox protein SPX1 (Homeodomain protein EPX) (Protein Esx1) | Esx1 Epx | O88933 | 1 |
| Homeobox protein TGIF2 (5'-TG-3'-interacting factor 2) (TGF-beta-induced transcription factor 2) (TGFB-induced factor 2) | Tgif2 | Q8C0Y1 | 1 |
| Homeobox-containing protein 1 | Hmbox1 | Q8BJA3 | 1 |
| HORMA domain-containing protein 1 (Newborn ovary HORMA protein) | Hormad1 Nohma | Q9D5T7 | 1 |
| Host cell factor 1 (HCF) (HCF-1) (C1 factor) [Cleaved into: HCF N-terminal chain 1; HCF N-terminal chain 2; HCF N-terminal chain 3; HCF N-terminal chain 4; HCF N-terminal chain 5; HCF N-terminal chain 6; HCF C-terminal chain 1; HCF C-terminal chain 2; HCF C-terminal chain 3; HCF C-terminal chain 4; HCF C-terminal chain 5; HCF C-terminal chain 6] | Hcfc1 | Q61191 | 1 |
| Host cell factor 2 (MCG118035, isoform CRA_a) | Hcfc2 mCG_118035 | G5E837 | 1 |
| Host cell factor C1 regulator 1 (HCF-1 beta-propeller-interacting protein) | Hcfc1r1 Hpip | Q9CYQ5 | 1 |
| HRAS-like suppressor 3 (HRSL3) (EC 3.1.1.32) (EC 3.1.1.4) (Group XVI phospholipase A1/A2) (H-rev 107 protein) | Pla2g16 H-rev107 Hrasls3 Hrev107 | Q8R3U1 | 1 |
| Hrh2 protein (Fragment) | Hrh2 | Q3ZB30 | 1 |
| Huntingtin-interacting protein 1 (HIP-1) (Huntingtin-interacting protein I) (HIP-I) | Hip1 Kiaa4113 | Q8VD75 | 1 |
| Hyaluronidase-2 (Hyal-2) (EC 3.2.1.35) (Hyaluronoglucosaminidase-2) | Hyal2 | O35632 | 1 |
| Hyaluronidase-3 (Hyal-3) (EC 3.2.1.35) (Hyaluronoglucosaminidase-3) | Hyal3 Hyl3 | Q8VEI3 | 1 |
| Hyaluronidase-4 (Hyal-4) (EC 3.2.1.35) (Chondroitin sulfate endo-beta-N-acetylgalactosaminidase) (Chondroitin sulfate hydrolase) (CSHY) (Hyaluronoglucosaminidase-4) | Hyal4 | Q05A56 | 1 |
| Hydroxycarboxylic acid receptor 2 (G-protein coupled receptor 109) (G-protein coupled receptor 109A) (G-protein coupled receptor HM74) (Niacin receptor 1) (Nicotinic acid receptor) (Protein PUMA-G) | Hcar2 Gpr109 Gpr109a Gpr109b Niacr1 Pumag | Q9EP66 | 1 |
| Hypermethylated in cancer 1 protein (Hic-1) | Hic1 | Q9R1Y5 | 1 |
| Hypoxia-inducible factor 1-alpha (HIF-1-alpha) (HIF1-alpha) (ARNT-interacting protein) | Hif1a | Q61221 | 1 |
| Hypoxia-inducible factor 1-alpha inhibitor (EC 1.14.11.30) (EC 1.14.11.n4) (Hypoxia-inducible factor asparagine hydroxylase) | Hif1an | Q8BLR9 | 1 |
| IgG receptor FcRn large subunit p51 (FcRn) (IgG Fc fragment receptor transporter alpha chain) (Neonatal Fc receptor) | Fcgrt Fcrn | Q61559 | 1 |
| Immediate early response gene 2 protein (CHX1) (Cycloheximide-induced gene protein) (Growth factor-inducible immediate early protein) (Proline-rich-induced protein 92) (Pip92) (T-lymphocyte-activated protein) | Ier2 | P17950 | 1 |
| Immediate early response gene 5-like protein | Ier5l | Q99J55 | 1 |
| Immunoglobulin superfamily containing leucine-rich repeat protein | Islr | Q6GU68 | 1 |
| Immunoglobulin superfamily DCC subclass member 3 (Putative neuronal cell adhesion molecule) | Igdcc3 Punc | Q8BQC3 | 1 |
| Importin subunit alpha-3 (Importin alpha Q1) (Qip1) (Karyopherin subunit alpha-4) | Kpna4 Qip1 | O35343 | 1 |
| Importin subunit alpha-4 (Importin alpha Q2) (Qip2) (Karyopherin subunit alpha-3) | Kpna3 Qip2 | O35344 | 1 |
| Importin-11 (Imp11) (Ran-binding protein 11) (RanBP11) | Ipo11 Ranbp11 | Q8K2V6 | 1 |
| Importin-13 (Imp13) | Ipo13 Kiaa0724 | Q8K0C1 | 1 |
| Importin-9 | Ipo9 | E9QKZ2 | 1 |
| Inactive phospholipase C-like protein 2 (PLC-L(2)) (PLC-L2) (Phospholipase C-L2) (Phospholipase C-epsilon-2) (PLC-epsilon-2) | Plcl2 Kiaa1092 Plce2 | Q8K394 | 1 |
| Inactive serine protease 35 | Prss35 | Q8C0F9 | 1 |
| Inactive ubiquitin carboxyl-terminal hydrolase 53 (Inactive ubiquitin-specific peptidase 53) (Per-hexamer repeat protein 3) | Usp53 Phxr3 | P15975 | 1 |
| InaD-like protein (Inadl protein) (Channel-interacting PDZ domain-containing protein) (Pals1-associated tight junction protein) (Protein associated to tight junctions) | Inadl Cipp Patj | Q63ZW7 | 1 |
| Inhibin beta B chain (Activin beta-B chain) | Inhbb | Q04999 | 1 |
| Inhibitor of Bruton tyrosine kinase (IBtk) | Ibtk Kiaa1417 | Q6ZPR6 | 1 |
| Inhibitor of growth protein 5 | Ing5 | Q9D8Y8 | 1 |
| Inhibitor of nuclear factor kappa-B kinase subunit beta (I-kappa-B-kinase beta) (IKK-B) (IKK-beta) (IkBKB) (EC 2.7.11.10) (I-kappa-B kinase 2) (IKK2) (Nuclear factor NF-kappa-B inhibitor kinase beta) (NFKBIKB) | Ikbkb Ikkb | O88351 | 1 |
| Inosine-5'-monophosphate dehydrogenase 1 (IMP dehydrogenase 1) (IMPD 1) (IMPDH 1) (EC 1.1.1.205) (IMPDH-I) | Impdh1 | P50096 | 1 |
| Inositol 1,4,5-trisphosphate receptor type 3 (IP3 receptor isoform 3) (IP3R 3) (InsP3R3) (Type 3 inositol 1,4,5-trisphosphate receptor) (Type 3 InsP3 receptor) | Itpr3 | P70227 | 1 |
| Inositol 1,4,5-trisphosphate receptor-interacting protein-like 1 | Itpripl1 | A2ASA8 | 1 |
| Inositol hexakisphosphate kinase 2 (InsP6 kinase 2) (EC 2.7.4.21) (P(i)-uptake stimulator) (PiUS) | Ip6k2 Ihpk2 | Q80V72 | 1 |
| Inositol polyphosphate 1-phosphatase (IPP) (IPPase) (EC 3.1.3.57) | Inpp1 | P49442 | 1 |
| Inositol polyphosphate 5-phosphatase K (EC 3.1.3.56) (Skeletal muscle and kidney-enriched inositol phosphatase) | Inpp5k Pps Skip | Q8C5L6 | 1 |
| Inositol polyphosphate 5-phosphatase OCRL-1 (EC 3.1.3.36) | Ocrl | Q6NVF0 | 1 |
| Inositol-pentakisphosphate 2-kinase (EC 2.7.1.158) (Inositol-1,3,4,5,6-pentakisphosphate 2-kinase) (Ins(1,3,4,5,6)P5 2-kinase) (InsP5 2-kinase) | Ippk | Q6P1C1 | 1 |
| Inositol-tetrakisphosphate 1-kinase (EC 2.7.1.134) (Inositol 1,3,4-trisphosphate 5/6-kinase) (Inositol-triphosphate 5/6-kinase) (Ins(1,3,4)P(3) 5/6-kinase) (EC 2.7.1.159) | Itpk1 | Q8BYN3 | 1 |
| Insulin growth factor-like family member | Igfl Gm580 Igfl3 mIgfl | Q6B9Z0 | 1 |
| Insulin receptor substrate 2 (IRS-2) (4PS) | Irs2 | P81122 | 1 |
| Insulin receptor substrate 3, isoform CRA_a (Insulin receptor substrate-3) (Protein Irs3) (Fragment) | Irs3 IRS-3 mCG_6885 | O54718 | 1 |
| Insulin-like 3 (Insulin-like 3 A chain) (MCG10367, isoform CRA_a) | Insl3 mCG_10367 | Q5RL10 | 1 |
| Insulin-like growth factor 1 receptor (EC 2.7.10.1) (Insulin-like growth factor I receptor) (IGF-I receptor) (CD antigen CD221) [Cleaved into: Insulin-like growth factor 1 receptor alpha chain; Insulin-like growth factor 1 receptor beta chain] | Igf1r | Q60751 | 1 |
| Insulin-like growth factor-binding protein complex acid labile subunit (ALS) | Igfals Albs Als | P70389 | 1 |
| Insulin-like peptide INSL5 (Insulin-like peptide 5) (Relaxin/insulin-like factor 2) (Relaxin/insulin-like protein) [Cleaved into: Insulin-like peptide INSL5 B chain; Insulin-like peptide INSL5 A chain] | Insl5 Rif Rif2 Zins3 | Q9WUG6 | 1 |
| Integral membrane protein 2C (Transmembrane protein BRI3) [Cleaved into: CT-BRI3] | Itm2c | Q91VK4 | 1 |
| Integrator complex subunit 10 (Int10) | Ints10 | Q8K2A7 | 1 |
| Integrator complex subunit 12 (Int12) (PHD finger protein 22) | Ints12 Phf22 | Q9D168 | 1 |
| Integrator complex subunit 2 (Int2) | Ints2 Kiaa1287 | Q80UK8 | 1 |
| Integrin alpha-IIb (GPalpha IIb) (GPIIb) (Platelet membrane glycoprotein IIb) (CD antigen CD41) [Cleaved into: Integrin alpha-IIb heavy chain; Integrin alpha-IIb light chain] | Itga2b | Q9QUM0 | 1 |