| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| W4Y8T3 | Histone H4; | Sp-EhH4_33; | NULL | 115 | sea-urchin |
| W4YXY8 | S-adenosylmethionine synthase; EC 2.5.1.6; | Sp-Mat2a; | NULL | 392 | sea-urchin |
| W4Z362 | Uncharacterized protein; Fragment; | Sp-Hypp_187; | NULL | 1169 | sea-urchin |
| W4YMZ5 | Histone acetyltransferase; EC 2.3.1.48; | Sp-Myst2_1; | NULL | 567 | sea-urchin |
| W4YTP4 | Uncharacterized protein; | Sp-Rxfp2_3; | NULL | 480 | sea-urchin |
| W4YNK4 | Uncharacterized protein; | NULL | NULL | 267 | sea-urchin |
| W4XIV1 | Uncharacterized protein; | NULL | NULL | 99 | sea-urchin |
| W4XNK2 | Uncharacterized protein; | Sp-Npr1_6; | XP_785276.2; | 653 | sea-urchin |
| W4YHC0 | Uncharacterized protein; | Sp-Ccp/Hyr/Lnb/7Tm/Gpcr; | NULL | 1094 | sea-urchin |
| W4ZH79 | Uncharacterized protein; | NULL | NULL | 253 | sea-urchin |
| W4Y643 | Uncharacterized protein; | Sp-CycA_1; | NULL | 289 | sea-urchin |
| W4YAL7 | Uncharacterized protein; | Sp-Bmp5/6/7/8; | NULL | 1149 | sea-urchin |
| W4XR28 | Uncharacterized protein; | Sp-Gucy1b3; | NULL | 1247 | sea-urchin |
| W4X9V9 | Uncharacterized protein; | Sp-AchE_8; | XP_786979.1; | 608 | sea-urchin |
| W4XRF3 | Uncharacterized protein; | NULL | NULL | 2081 | sea-urchin |
| W4YLI5 | Uncharacterized protein; Fragment; | Sp-Kif19; | NULL | 755 | sea-urchin |
| W4Z0B5 | Uncharacterized protein; | NULL | NULL | 193 | sea-urchin |
| W4Z3T6 | Uncharacterized protein; | Sp-Notch3; | NULL | 519 | sea-urchin |
| W4Y4A8 | Delta-like protein; | Sp-Notchl2; | NULL | 821 | sea-urchin |
| W4Z4C8 | Uncharacterized protein; | Sp-Hypp_1063; | NULL | 803 | sea-urchin |
