| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| Q811V6 | Spermatogenesis-associated serine-rich protein 1; Spermatogenic serine-rich protein 1; | Spats1; Srsp1; | NP_852041.1; | 281 | rat |
| B2RYN7 | Spastin; EC 3.6.4.3; | Spast; Spg4; | NP_001102172.2; | 581 | rat |
| Q6AY22 | Spermatogenesis-associated protein 1; | Spata1; | NP_001014199.1;XP_008759739.1; | 444 | rat |
| Q99MU5 | Spermatogenesis-associated protein 6; Kinesin-related protein; Spermatogenesis-related factor 1; | Spata6; Hash Srf1; | NULL | 488 | rat |
| Q9R0A3 | Spermatogenesis-associated protein 7 homolog; Fertility-related protein WMP1; Rat sperm DNA no.3; RSD-3; | Spata7; Rsd3; | NULL | 526 | rat |
| Q8K3K4 | Serpin B10; TGF-beta-repressible serine proteinase inhibitor; Trespin; Transforming growth factor beta repressible serpin; | Serpinb10; | NP_714955.2; | 397 | rat |
| Q5RJT2 | pre-rRNA processing protein FTSJ3; EC 2.1.1.-; 2'-O-ribose RNA methyltransferase SPB1 homolog; Protein ftsJ homolog 3; Putative rRNA methyltransferase 3; | Ftsj3; | NP_001012014.1; | 829 | rat |
| P70564 | Serpin B5; Maspin; Peptidase inhibitor 5; PI-5; | Serpinb5; Pi5; | NP_476449.1; | 375 | rat |
| P08723 | Prostatic spermine-binding protein; SBP; | Sbp; | NULL | 279 | rat |
| Q5M856 | Kinetochore protein Spc25; | Spc25; Spbc25; | NP_001009654.1;XP_006234350.1; | 226 | rat |
| Q568Z4 | Signal peptidase complex subunit 3; EC 3.4.-.-; Microsomal signal peptidase 22/23 kDa subunit; SPC22/23; SPase 22/23 kDa subunit; | Spcs3; | NP_001019438.1;XP_006227529.1;XP_006257345.1; | 180 | rat |
| Q3KR99 | Protein Spindly; Coiled-coil domain-containing protein 99; Spindle apparatus coiled-coil domain-containing protein 1; | Spdl1; Ccdc99; | NP_001029310.1;XP_006246166.1; | 597 | rat |
| Q8R496 | Speedy protein A; GS4; Rapid inducer of G2/M progression in oocytes A; RINGO A; Speedy-1; Spy1; | Spdya; Spdy1; | NP_620210.1;XP_006239828.1;XP_006239829.1;XP_006239830.1;XP_008762724.1; | 312 | rat |
| Q5PQN6 | Spermatogenesis-defective protein 39 homolog; hSPE-39; VPS33B-interacting protein in apical-basolateral polarity regulator; VPS33B-interacting protein in polarity and apical restriction; | Vipas39; Spe39 Vipar; | NP_001094474.1; | 460 | rat |
| Q0D2L3 | Agmatinase, mitochondrial; EC 3.5.3.11; Agmatine ureohydrolase; AUH; | Agmat; | NP_001041650.1; | 353 | rat |
| Q9R095 | Sperm flagellar protein 2; Protein KPL2; | Spef2; Kpl2; | NP_072142.1; | 1801 | rat |
| Q63638 | Striated muscle-specific serine/threonine-protein kinase; EC 2.7.11.1; Aortic preferentially expressed protein 1; APEG-1; | Speg; Apeg1; | NP_001102272.1;NP_037037.1; | 3259 | rat |
| Q6AXV6 | Spermatid-associated protein; | Spert; | NP_001017506.1; | 447 | rat |
| A0JPP4 | Sperm equatorial segment protein 1; | Spesp1; | NP_001071150.1; | 409 | rat |
| Q4QQU6 | Survival of motor neuron-related-splicing factor 30; Survival motor neuron domain-containing protein 1; | Smndc1; Spf30; | NP_001020571.1;NP_001030311.1; | 238 | rat |
