| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P23613 | Hyaluronidase PH-20; Hyal-PH20; EC 3.2.1.35; Hyaluronoglucosaminidase PH-20; Sperm adhesion molecule 1; Sperm surface protein PH-20; | SPAM1; PH-20 PH20; | NP_001166492.1; | 529 | guinea pig |
| P12966 | Islet amyloid polypeptide; Amylin; | IAPP; | NP_001166436.1; | 92 | guinea pig |
| P17647 | Insulin-like growth factor I; IGF-I; Somatomedin; | IGF1; | NP_001166437.2; | 130 | guinea pig |
| Q08279 | Insulin-like growth factor II; IGF-II; Somatomedin-A; Fragment; [Cleaved into: Insulin-like growth factor II; Preptin]; | IGF2; | NULL | 128 | guinea pig |
| P01862 | Ig gamma-2 chain C region; | NULL | NULL | 329 | guinea pig |
| Q9Z1Y5 | Interleukin-10; IL-10; Cytokine synthesis inhibitory factor; CSIF; | IL10; | NULL | 178 | guinea pig |
| Q924V5 | Interleukin-12 subunit beta; IL-12B; Cytotoxic lymphocyte maturation factor 40 kDa subunit; CLMF p40; IL-12 subunit p40; | IL12B; | NP_001166438.1; | 332 | guinea pig |
| Q75SZ9 | Interleukin-15; IL-15; | IL15; | NP_001166300.1; | 162 | guinea pig |
| Q60480 | Interleukin-1 alpha; IL-1 alpha; Fragment; | IL1A; | NULL | 204 | guinea pig |
| Q9WVG1 | Interleukin-1 beta; IL-1 beta; | IL1B; | NP_001166439.1; | 266 | guinea pig |
| Q6LA37 | Interleukin-23 subunit alpha; IL-23 subunit alpha; IL-23-A; Interleukin-23 subunit p19; IL-23p19; | IL23A; | NP_001166440.1; | 189 | guinea pig |
| O08987 | Interleukin-5; IL-5; Eosinophil differentiation factor; T-cell replacing factor; TRF; | IL5; | NP_001166441.1; | 135 | guinea pig |
| P49113 | Interleukin-8; IL-8; C-X-C motif chemokine 8; Neutrophil attractant protein 1; NAP-1; Chemokine (C-X-C motif) ligand 8; | CXCL8; IL8; | NP_001166870.1; | 101 | guinea pig |
| P57044 | Integrin-linked protein kinase; EC 2.7.11.1; Beta-integrin-linked kinase; | ILK; | NP_001166442.1; | 451 | guinea pig |
| P14617 | Insulin receptor-related protein; IRR; EC 2.7.10.1; IR-related receptor; [Cleaved into: Insulin receptor-related protein alpha chain; Insulin receptor-related protein beta chain]; | INSRR; | XP_003475448.1; | 1300 | guinea pig |
| P01329 | Insulin; [Cleaved into: Insulin B chain; Insulin A chain]; | INS; | NP_001166362.1; | 110 | guinea pig |
| P11578 | Integrin alpha-M; CD11 antigen-like family member B; CR-3 alpha chain; Cell surface glycoprotein MAC-1 subunit alpha; Leukocyte adhesion receptor MO1; CD antigen CD11b; Fragment; | ITGAM; | NULL | 126 | guinea pig |
| P18563 | Integrin beta-6; Fragment; | ITGB6; | NULL | 577 | guinea pig |
| Q9JHJ9 | ATP-sensitive inward rectifier potassium channel 11; IKATP; Inward rectifier K(+) channel Kir6.2; Potassium channel, inwardly rectifying subfamily J member 11; | KCNJ11; | NP_001166445.1; | 390 | guinea pig |
| Q9QZ65 | Inward rectifier potassium channel 13; Inward rectifier K(+) channel Kir7.1; Potassium channel, inwardly rectifying subfamily J member 13; | KCNJ13; | NP_001166225.1; | 360 | guinea pig |
