| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| Q5E9U0 | Transcription factor Sp2; | SP2; | NP_001015654.1;XP_005220643.1; | 613 | cow | 
| Q0IIA6 | Spermatogenesis-associated protein 2-like protein; SPATA2-like protein; | SPATA2L; | NP_001069970.1; | 409 | cow | 
| Q9TTE1 | Serpin A3-1; Endopin-1A; Muscle endopin-1A; mEndopin-1A; | SERPINA3-1; SERPINA3A; | NP_777193.2; | 411 | cow | 
| A2I7M9 | Serpin A3-2; | SERPINA3-2; | NP_001139773.1; | 411 | cow | 
| Q3ZEJ6 | Serpin A3-3; Endopin-1B; Muscle endopin-1B; mEndopin-1B; | SERPINA3-3; | NP_001033293.1; | 411 | cow | 
| A2I7N0 | Serpin A3-4; | SERPINA3-4; | NULL | 411 | cow | 
| A2I7N1 | Serpin A3-5; | SERPINA3-5; | NP_001075213.1; | 411 | cow | 
| A2I7N2 | Serpin A3-6; | SERPINA3-6; | NP_001139774.1; | 414 | cow | 
| A2I7N3 | Serpin A3-7; | SERPINA3-7; | NULL | 417 | cow | 
| A6QPQ2 | Serpin A3-8; | SERPINA3-8; | NP_001075181.1; | 418 | cow | 
| A7YSY2 | Spermatogenesis-associated protein 5-like protein 1; | SPATA5L1; | NP_001099095.1; | 767 | cow | 
| P29392 | Spermadhesin-1; Acidic seminal fluid protein; ASFP; | SPADH1; | NP_777041.1; | 134 | cow | 
| A2VDN5 | Spastin; EC 3.6.4.3; | SPAST; SPG4; | NP_001075060.1; | 614 | cow | 
| Q2KJG1 | Spermatogenesis-associated protein 6; | SPATA6; | NULL | 487 | cow | 
| Q3T021 | Spermatogenesis-associated protein 9; | SPATA9; | NP_001029908.1; | 253 | cow | 
| A5PJK0 | Serpin B10; | SERPINB10; | NP_001092395.1; | 397 | cow | 
| O02739 | Serpin B6; Proteinase inhibitor 6; Serine proteinase inhibitor B-43; | SERPINB6; | NP_777214.1; | 378 | cow | 
| Q5BIR5 | Serpin B8; | SERPINB8; | NP_001030364.1;XP_005224035.1; | 374 | cow | 
| Q24JY3 | Kinetochore protein Spc24; | SPC24; SPBC24; | NP_001068859.1; | 197 | cow | 
| Q3ZBK3 | Kinetochore protein Spc25; | SPC25; SPBC25; | NP_001029402.1;XP_005202372.1; | 226 | cow | 
