| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| O61715 | Innexin-19; Neuronal symmetry protein 5; Protein opu-19; | inx-19; nsy-5 opu-19; | NP_490983.2;NP_871864.1; | 454 | c.elegen |
| Q9U3K5 | Innexin-2; Protein opu-2; | inx-2; opu-2; | NP_509885.1; | 419 | c.elegen |
| Q19746 | Innexin-3; Protein opu-3; | inx-3; opu-3; | NP_509002.2; | 420 | c.elegen |
| Q23027 | Innexin-5; Protein opu-5; | inx-5; opu-5; | NP_509403.2; | 447 | c.elegen |
| Q9U3N4 | Innexin-6; Protein opu-6; | inx-6; opu-6; | NP_502435.1; | 389 | c.elegen |
| Q21123 | Innexin-7; Protein opu-7; | inx-7; opu-7; | NP_500894.1; | 556 | c.elegen |
| Q23593 | Innexin-8; Protein opu-8; | inx-8; opu-8; | NP_502209.1; | 382 | c.elegen |
| Q18680 | Probable inorganic pyrophosphatase 1; EC 3.6.1.1; Pyrophosphate phospho-hydrolase; PPase; | pyp-1; uba-1; | NP_001023073.1;NP_001023076.1; | 428 | c.elegen |
| Q09499 | Serine/threonine-protein kinase/endoribonuclease ire-1; Inositol-requiring protein 2; EC 3.1.26.-; EC 2.7.11.1; | ire-1; | NP_001254135.1; | 967 | c.elegen |
| P52192 | Inward rectifier potassium channel irk-1; | irk-1; irk-4; | NP_509138.2; | 544 | c.elegen |
| Q93348 | Putative iroquois-class homeodomain protein irx-1; | irx-1; | NP_492533.2; | 377 | c.elegen |
| Q8MPZ7 | Putative trypsin inhibitor isl-1; Inhibitor of serine protease-like protein 1; | isl-1; | NP_872050.1; | 100 | c.elegen |
| P41877 | Chromatin-remodeling complex ATPase chain isw-1; EC 3.6.4.-; Nucleosome-remodeling factor subunit isw-1; | isw-1; | NP_498468.2; | 1009 | c.elegen |
| Q9GYK2 | Uncharacterized integrin beta-like protein C05D9.3; | NULL | NP_508212.3; | 423 | c.elegen |
| Q9GYG4 | Inosine triphosphate pyrophosphatase; ITPase; Inosine triphosphatase; EC 3.6.1.19; Non-canonical purine NTP pyrophosphatase; Non-standard purine NTP pyrophosphatase; Nucleoside-triphosphate diphosphatase; Nucleoside-triphosphate pyrophosphatase; NTPase; | hap-1; | NP_498121.1; | 184 | c.elegen |
| Q9Y0A1 | Inositol 1,4,5-trisphosphate receptor itr-1; IP3 receptor; IP3R; InsP3R; LET-23 fertility effector 1; | itr-1; dec-4 lfe-1; | NP_001023170.1;NP_001023171.1;NP_001023172.1;NP_001023173.1;NP_001023174.1;NP_001255305.1; | 2892 | c.elegen |
| P34275 | Probable acyl-CoA dehydrogenase 6; Probable isovaleryl-CoA dehydrogenase; IVD; EC 1.3.8.4; | acdh-6; | NP_498885.1; | 408 | c.elegen |
| Q19375 | IWS1-like protein; | iws-1; | NP_501924.1; | 511 | c.elegen |
| Q9U308 | Juxtamembrane domain-associated catenin; p120 catenin homolog; | jac-1; | NP_001041007.1;NP_001041008.1; | 1254 | c.elegen |
| Q9XUU9 | Protein jagunal homolog; | NULL | NP_493559.1; | 189 | c.elegen |
