| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| A1A4M6 | StAR-related lipid transfer protein 5; START domain-containing protein 5; StARD5; | STARD5; | NP_001073734.1; | 213 | cow | 
| Q28918 | Steroidogenic acute regulatory protein, mitochondrial; StAR; START domain-containing protein 1; StARD1; | STAR; | NP_776614.1; | 285 | cow | 
| P61635 | Signal transducer and activator of transcription 3; | STAT3; | NP_001012689.2; | 770 | cow | 
| Q8HY86 | Statherin; | STATH; | NP_777177.1; | 59 | cow | 
| Q9N0T1 | Stanniocalcin-1; STC-1; | STC1; STC; | NP_788842.2; | 247 | cow | 
| Q04752 | Steroidogenic factor 1; SF-1; STF-1; Adrenal 4-binding protein; Fushi tarazu factor homolog 1; Nuclear receptor subfamily 5 group A member 1; Steroid hormone receptor Ad4BP; | NR5A1; AD4BP FTZF1; | NP_776828.1; | 461 | cow | 
| Q58CP9 | Stromal interaction molecule 1; | STIM1; | NP_001030486.1; | 683 | cow | 
| Q2KI99 | Stimulator of interferon genes protein; STING; Transmembrane protein 173; | TMEM173; STING; | NP_001039822.1;XP_005209520.1; | 378 | cow | 
| Q3ZBZ8 | Stress-induced-phosphoprotein 1; STI1; Hsc70/Hsp90-organizing protein; Hop; | STIP1; | NP_001030569.1; | 543 | cow | 
| E1BK52 | Serine/threonine-protein kinase 10; EC 2.7.11.1; | STK10; | NULL | 966 | cow | 
| Q3SWY6 | Serine/threonine-protein kinase 25; EC 2.7.11.1; | STK25; | NP_899666.1; | 426 | cow | 
| Q0VD22 | Serine/threonine-protein kinase 33; EC 2.7.11.1; | STK33; | NP_001069376.1; | 486 | cow | 
| A2VDV2 | Serine/threonine-protein kinase 38; EC 2.7.11.1; | STK38; | NP_001075071.1; | 465 | cow | 
| Q17QV9 | Serine/threonine-protein kinase 40; EC 2.7.11.1; | STK40; | NP_001069195.1;XP_005204789.1; | 436 | cow | 
| Q5E9L6 | Serine/threonine-protein kinase 4; EC 2.7.11.1; Mammalian STE20-like protein kinase 1; MST-1; STE20-like kinase MST1; [Cleaved into: Serine/threonine-protein kinase 4 37kDa subunit (MST1/N); Serine/threonine-protein kinase 4 18kDa subunit (MST1/C)]; | STK4; MST1; | NP_001015602.1; | 487 | cow | 
| Q32LL2 | Stomatin-like protein 2, mitochondrial; SLP-2; | STOML2; | NP_001033157.1; | 356 | cow | 
| Q3T0C7 | Stathmin; | STMN1; | NP_001029962.1;XP_005203303.1;XP_005203304.1;XP_005203305.1; | 149 | cow | 
| A4IFK9 | Stathmin-3; | STMN3; | NP_001077135.1;XP_005214704.1; | 180 | cow | 
| Q08DB2 | CST complex subunit STN1; Oligonucleotide/oligosaccharide-binding fold-containing protein 1; Suppressor of cdc thirteen homolog; | OBFC1; STN1; | NP_001070317.1; | 370 | cow | 
| P17305 | Spermatid nuclear transition protein 1; STP-1; TP-1; | TNP1; | NP_776624.1; | 55 | cow | 
