| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| W4XW38 | Uncharacterized protein; | Sp-Galr2L_9; | XP_003730687.1;XP_003730688.1; | 380 | sea-urchin |
| H3IRP0 | Histone H2B; | Sp-Lhh2bi; Sp-Lhh2bh; | XP_001176522.1;XP_791271.1; | 124 | sea-urchin |
| C6SUR8 | Putative glycoprotein hormone-beta5; Uncharacterized protein; | gpb5; Sp-Glyphp1; | NP_001268683.1; | 134 | sea-urchin |
| W4Z6Y0 | Anoctamin; | Sp-122Kdsp_1; Sp-122Kdsp; | NULL | 912 | sea-urchin |
| W4YFT6 | Uncharacterized protein; | NULL | NULL | 385 | sea-urchin |
| E7CQ89 | Klf7; Uncharacterized protein; | Klf7; Sp-Klf7; | NP_001189420.1; | 291 | sea-urchin |
| H3JAA3 | Uncharacterized protein; | Sp-C9orf117_1; Sp-C9orf117; | XP_003728190.1;XP_783013.2; | 565 | sea-urchin |
| H3HM40 | Histone H2A; | Sp-EhH2a_20; Sp-EhH2a_13 Sp-EhH2a_15 Sp-EhH2a_17 Sp-EhH2a_28 Sp-EhH2a_31 Sp-EhH2a_34 Sp-EhH2a_36 Sp-EhH2a_43 Sp-EhH2a_53 Sp-EhH2a_64 Sp-EhH2a_69 Sp-EhH2a_7 Sp-EhH2a_8; | NULL | 74 | sea-urchin |
| Q2F7Z1 | Runx transcription factor dimeric partner CBF-beta; Uncharacterized protein; | Sp-Cbfb; | NP_001035104.1; | 174 | sea-urchin |
| Q1A708 | Sodium bicarbonate cotransporter; Uncharacterized protein; | NBC; Sp-Nbc Sp-Nbc_1 Sp-Nbc_2; | NP_001073019.1; | 1214 | sea-urchin |
| Q45ZY2 | Hyperpolarization-gated and cyclic nucleotide regulated channel; Uncharacterized protein; | Sp-Hcn2; Sp-Hcn2_1; | NP_001028182.1; | 638 | sea-urchin |
| H3JIK5 | Uncharacterized protein; | NULL | XP_003731445.1; | 162 | sea-urchin |
| Q95UJ1 | Transcription factor Elk; Uncharacterized protein; | Sp-Elk; | NP_999792.1; | 454 | sea-urchin |
| Q8MUL2 | P16; Uncharacterized protein; | Sp-P16; | NP_999811.1; | 172 | sea-urchin |
| Q9GPA7 | Piwi-like protein; Fragment; | Sp-Seawi; | NULL | 808 | sea-urchin |
| Q9GQV4 | CVp18; Uncharacterized protein; | Sp-Cvp18; | NP_999641.1; | 185 | sea-urchin |
| Q6V9R4 | Sperm membrane protein; Uncharacterized protein; | REJ2; Sp-Rej2 Sp-Rej2_1; | NP_999802.1; | 1472 | sea-urchin |
| Q64HK6 | GATA transcription factor; Uncharacterized protein; | gatae; Sp-Gatae; | NP_001005725.1; | 567 | sea-urchin |
| Q4VGX1 | Soluble adenylyl cyclase; Uncharacterized protein; | Sp-Sac; | NP_001020380.1; | 1868 | sea-urchin |
| W4XN58 | Uncharacterized protein; | NULL | XP_790270.3; | 196 | sea-urchin |
