| Histidine triad nucleotide-binding protein 3 (HINT-3) (EC 3.-.-.-) (HINT-4) | Hint3 Hint4 | Q9CPS6 | 1 |
| Histidyl-tRNA synthetase-like, isoform CRA_a (Probable histidine--tRNA ligase, mitochondrial) | Hars2 Harsl mCG_124899 | G5E823 | 1 |
| Histocompatibility 13 (Fragment) | H13 | A3KGR9 | 1 |
| Histone acetyltransferase KAT8 (EC 2.3.1.48) (Lysine acetyltransferase 8) (MOZ, YBF2/SAS3, SAS2 and TIP60 protein 1) (MYST-1) | Kat8 Mof Myst1 | Q9D1P2 | 1 |
| Histone chaperone ASF1B (Anti-silencing function protein 1 homolog B) (mCIA-II) | Asf1b | Q9DAP7 | 1 |
| Histone deacetylase (EC 3.5.1.98) | Hdac2 | A0A0R4J008 | 1 |
| Histone deacetylase 2 (Putative uncharacterized protein) | Hdac2 | Q8BQ10 | 1 |
| Histone deacetylase 6 (HD6) (EC 3.5.1.98) (Histone deacetylase mHDA2) | Hdac6 | Q9Z2V5 | 1 |
| Histone deacetylase complex subunit SAP18 | Sap18 | D3YY73 | 1 |
| Histone deacetylase complex subunit SAP18 | Sap18 | D3Z2N9 | 1 |
| Histone H1t (Histone cluster 1, H1t) | Hist1h1t RP23-283N14.20-001 | I7HFT9 | 1 |
| Histone H2A | H2afz | Q3UA95 | 1 |
| Histone H2A deubiquitinase MYSM1 (2A-DUB) (EC 3.4.19.-) (Myb-like, SWIRM and MPN domain-containing protein 1) | Mysm1 Kiaa1915 | Q69Z66 | 1 |
| Histone H2B | Hist1h2bm mCG_50239 | B2RTK3 | 1 |
| Histone H4 | Hist2h4 Hist1h4c Hist1h4m RP23-38E20.3 mCG_1027097 mCG_1044802 mCG_121063 mCG_142242 mCG_23033 mCG_23039 mCG_49272 mCG_49679 mCG_7726 mCG_7729 mCG_7731 RP23-283N14.21-001 RP23-38E20.3-001 RP23-38E20.4-001 | B2RTM0 | 1 |
| Histone PARylation factor 1 | Hpf1 | Q8CFE2 | 1 |
| Histone RNA hairpin-binding protein (Histone stem-loop-binding protein) | Slbp Hbp | P97440 | 1 |
| Histone-binding protein RBBP7 (Fragment) | Rbbp7 | F6U539 | 1 |
| Histone-lysine N-methyltransferase (EC 2.1.1.43) | Kmt2c Mll3 | F8WI37 | 1 |
| Histone-lysine N-methyltransferase (EC 2.1.1.43) (Fragment) | Setd3 | F2Z438 | 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 2D (Lysine N-methyltransferase 2D) (EC 2.1.1.43) (ALL1-related protein) (Myeloid/lymphoid or mixed-lineage leukemia protein 2) | Kmt2d Mll2 Mll4 | Q6PDK2 | 1 |
| Histone-lysine N-methyltransferase ASH1L (EC 2.1.1.43) (ASH1-like protein) (Absent small and homeotic disks protein 1 homolog) | Ash1l | Q99MY8 | 1 |
| Histone-lysine N-methyltransferase EHMT1 (EC 2.1.1.-) (EC 2.1.1.43) (Euchromatic histone-lysine N-methyltransferase 1) (Eu-HMTase1) (G9a-like protein 1) (GLP) (GLP1) (Lysine N-methyltransferase 1D) | Ehmt1 Euhmtase1 Glp Kmt1d | Q5DW34 | 1 |
| Histone-lysine N-methyltransferase EZH2 | Ezh2 | D3Z774 | 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) | Nsd3 Whsc1l1 | Q6P2L6 | 1 |
| Histone-lysine N-methyltransferase SETD7 (EC 2.1.1.43) (Histone H3-K4 methyltransferase SETD7) (H3-K4-HMTase SETD7) (SET domain-containing protein 7) (SET7/9) | Setd7 Kiaa1717 Set7 Set9 | Q8VHL1 | 1 |
| Histone-lysine N-methyltransferase SETDB1 (EC 2.1.1.43) (ERG-associated protein with SET domain) (ESET) (SET domain bifurcated 1) | Setdb1 Eset Kiaa0067 | O88974 | 1 |
| Histone-lysine N-methyltransferase SMYD3 | Smyd3 | D3YZ17 | 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, H3 lysine-36 and H4 lysine-20 specific (EC 2.1.1.43) (H3-K36-HMTase) (H4-K20-HMTase) (Nuclear receptor-binding SET domain-containing protein 1) (NR-binding SET domain-containing protein) | Nsd1 | O88491 | 1 |
| Hmgn2 protein (Non-histone chromosomal protein HMG-17) | Hmgn2 | Q5XK38 | 1 |
| HMW-kininogen-II variant (Kininogen 2) (Kng2 protein) | Kng2 | Q6S9I2 | 1 |
| Holliday junction recognition protein (Fetal liver expressing gene 1 protein homolog) (mFleg1) | Hjurp Fleg1 | Q6PG16 | 1 |
| Homeobox protein cut-like | Cux1 | E9QKE9 | 1 |
| Homeobox protein cut-like | Cux1 | H3BK24 | 1 |
| Homeobox protein DBX1 (Developing brain homeobox protein 1) | Dbx1 Dbx | P52950 | 1 |
| Host cell factor 1 (Fragment) | Hcfc1 | F6SJS2 | 1 |
| HpaII tinys locus 9c, isoform CRA_a (Putative uncharacterized protein) (tRNA (uracil-5-)-methyltransferase homolog A) | Trmt2a Htf9c mCG_131829 | Q3UYU2 | 1 |
| HSPB1-associated protein 1 (27 kDa heat shock protein-associated protein 1) (Protein associated with small stress protein 1) | Hspbap1 Pass1 | Q8BK58 | 1 |
| Huntingtin-associated protein 1 (HAP-1) | Hap1 | O35668 | 1 |
| Hyaluronan-binding protein 2 (EC 3.4.21.-) (Plasma hyaluronan-binding protein) [Cleaved into: Hyaluronan-binding protein 2 50 kDa heavy chain; Hyaluronan-binding protein 2 50 kDa heavy chain alternate form; Hyaluronan-binding protein 2 27 kDa light chain; Hyaluronan-binding protein 2 27 kDa light chain alternate form] | Habp2 Phbp | Q8K0D2 | 1 |
| Hyaluronidase-2 (Hyal-2) (EC 3.2.1.35) (Hyaluronoglucosaminidase-2) | Hyal2 | O35632 | 1 |
| Hyccin (Down-regulated by CTNNB1 protein A) (Protein FAM126A) | Fam126a Drctnnb1a | D3Z481 | 1 |
| Hyccin (Down-regulated by CTNNB1 protein A) (Protein FAM126A) | Fam126a Drctnnb1a | Q3TTP7 | 1 |
| Hydrocephalus-inducing protein (Protein Hy-3) | Hydin Hy3 | Q80W93 | 1 |
| Hydroperoxide isomerase ALOXE3 (EC 5.4.4.7) (Epidermis-type lipoxygenase 3) (Epidermal LOX-3) (e-LOX-3) (eLOX-3) (Hydroperoxy icosatetraenoate dehydratase) (EC 4.2.1.152) | Aloxe3 | Q9WV07 | 1 |
| Hydroxyacid-oxoacid transhydrogenase, mitochondrial (HOT) (EC 1.1.99.24) (Alcohol dehydrogenase iron-containing protein 1) (ADHFe1) | Adhfe1 | Q8R0N6 | 1 |
| Hydroxyacyl glutathione hydrolase (Hydroxyacylglutathione hydrolase, mitochondrial) | Hagh mCG_132060 | G5E8T9 | 1 |
| Hydroxyacylglutathione hydrolase, mitochondrial (EC 3.1.2.6) (Glyoxalase II) (Glx II) | Hagh Glo2 | Q99KB8 | 1 |
| Hydroxyacylglutathione hydrolase, mitochondrial (Fragment) | Hagh | E9PYA3 | 1 |
| Hydroxyacylglutathione hydrolase, mitochondrial (Fragment) | Hagh | E9Q2H8 | 1 |
| Hydroxysteroid dehydrogenase-like protein 2 | Hsdl2 | B1AX78 | 1 |
| Hydroxysteroid dehydrogenase-like protein 2 (EC 1.-.-.-) | Hsdl2 | Q2TPA8 | 1 |
| Ig heavy chain V region 3 | Ighv1-61 Igh-VJ558 | P01749 | 1 |
| Ig kappa chain V-II region 7S34.1 | 0 | P01630 | 1 |
| Ig kappa chain V-III region PC 4050 | 0 | P01663 | 1 |
| Ig kappa chain V-V region HP 123E6 | 0 | P01646 | 1 |
| Ig kappa chain V-V region HP 93G7 | 0 | P01645 | 1 |
| Ig kappa chain V-V region K2 (Fragment) | 0 | P01635 | 1 |
| IgE-binding protein | Iap | P03975 | 1 |
| IgG receptor FcRn large subunit p51 (FcRn) (IgG Fc fragment receptor transporter alpha chain) (Neonatal Fc receptor) | Fcgrt Fcrn | Q61559 | 1 |
| Igh protein | Igh | Q99M22 | 1 |
| Ikbkb protein (Inhibitor of kappaB kinase beta, isoform CRA_b) (Inhibitor of nuclear factor kappa-B kinase subunit beta) (Putative uncharacterized protein) | Ikbkb mCG_6974 | Q5D0E0 | 1 |
| Ikbkg protein (Inhibitor of kappaB kinase gamma, isoform CRA_a) (NF-kappa-B essential modulator) (Putative uncharacterized protein) | Ikbkg mCG_21233 | Q8VC91 | 1 |
| Immature colon carcinoma transcript 1, isoform CRA_c (Peptidyl-tRNA hydrolase ICT1, mitochondrial) | Mrpl58 Ict1 mCG_6606 | A2A6T4 | 1 |
| Immunity-related GTPase family Q protein | Irgq Irgq1 Fksg27 | Q8VIM9 | 1 |
| Immunoglobulin heavy variable V11-2 (Fragment) | Ighv11-2 | A0A075B5R8 | 1 |
| Immunoglobulin heavy variable V9-3 (Fragment) | Ighv9-3 | A0A0B4J1J5 | 1 |
| Immunoglobulin superfamily member 2 (IgSF2) (Glu-Trp-Ile EWI motif-containing protein 101) (EWI-101) (CD antigen CD101) | Cd101 Igsf2 | A8E0Y8 | 1 |
| Immunoglobulin superfamily member 5 | Igsf5 | D3YXH0 | 1 |
| Inactive hydroxysteroid dehydrogenase-like protein 1 | Hsdl1 | Q8BTX9 | 1 |
| Inactive rhomboid protein 2 (iRhom2) (Rhomboid family member 2) (Rhomboid veinlet-like protein 6) (Rhomboid-related protein) | Rhbdf2 Irhom2 Rhbdl6 Rhor | Q80WQ6 | 1 |
| Inhibitor of growth protein 2 (Inhibitor of growth 1-like protein) (p33ING2) | Ing2 Ing1l | Q9ESK4 | 1 |
| Inhibitor of kappaB kinase gamma (NF-kappa-B essential modulator) | Ikbkg | Q7TSS3 | 1 |
| Inhibitor of nuclear factor kappa-B kinase subunit alpha | Chuk | E9QNL4 | 1 |
| Inhibitor of nuclear factor kappa-B kinase subunit beta (Fragment) | Ikbkb | F6ULQ4 | 1 |
| Inhibitor of nuclear factor kappa-B kinase-interacting protein | Ikbip | E9QMH7 | 1 |
| Inner nuclear membrane protein Man1 | Lemd3 | D3YU56 | 1 |
| Inner nuclear membrane protein Man1 | Lemd3 | E9QP59 | 1 |
| Inner nuclear membrane protein Man1 (LEM domain-containing protein 3) | Lemd3 Man1 | Q9WU40 | 1 |
| Inorganic pyrophosphatase 2, mitochondrial | Ppa2 | D3Z636 | 1 |
| Inorganic pyrophosphatase 2, mitochondrial (Fragment) | Ppa2 | G8JL76 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | Impdh1 IMPDH | E0CYE2 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | Impdh1 IMPDH | F7DEU6 | 1 |
| Inositol 1,4,5-trisphosphate receptor type 2 (IP3 receptor isoform 2) (IP3R 2) (InsP3R2) (Inositol 1,4,5-trisphosphate type V receptor) (Type 2 inositol 1,4,5-trisphosphate receptor) (Type 2 InsP3 receptor) | Itpr2 Itpr5 | Q9Z329 | 1 |
| Inositol 1,4,5-trisphosphate receptor-interacting protein-like 2 | Itpripl2 | Q3UV16 | 1 |
| Inositol hexakisphosphate and diphosphoinositol-pentakisphosphate kinase 2 | Ppip5k2 | E9Q9J4 | 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 receptor substrate 1 (IRS-1) | Irs1 Irs-1 | P35569 | 1 |
| Insulin receptor substrate 4 (IRS-4) (Phosphoprotein of 160 kDa) (pp160) | Irs4 | Q9Z0Y7 | 1 |
| Insulin-like growth factor 2 mRNA-binding protein 2 | Igf2bp2 | A6X8Z3 | 1 |
| Insulin-like growth factor II (IGF-II) (Multiplication-stimulating polypeptide) [Cleaved into: Insulin-like growth factor II; Preptin] | Igf2 Igf-2 | P09535 | 1 |
| Insulin-like growth factor-binding protein 5 (IBP-5) (IGF-binding protein 5) (IGFBP-5) | Igfbp5 Igfbp-5 | Q07079 | 1 |
| Insulin-like growth factor-binding protein complex acid labile subunit | Igfals | A0A0R4J0S2 | 1 |
| Insulin-like peptide INSL6 (Insulin-like peptide 6) [Cleaved into: Insulin-like peptide INSL6 B chain; Insulin-like peptide INSL6 A chain] | Insl6 | Q9QY05 | 1 |
| Integral membrane protein DGCR2/IDD | Dgcr2 | E9QNU3 | 1 |
| Integral membrane protein DGCR2/IDD (Seizure-related membrane-bound adhesion protein) | Dgcr2 Dgsc Idd Sez-12 Sez12 | P98154 | 1 |
| Integrator complex subunit 1 | Ints1 | K3W4P2 | 1 |
| Integrator complex subunit 13 (Cell cycle regulator Mat89Bb homolog) (Protein asunder homolog) (Spermatogenesis-associated protein 30) | IntS13 Asun Spata30 | Q8QZV7 | 1 |