| Solute carrier family 13 member 3 (Na(+)/dicarboxylate cotransporter 3) (NaDC-3) (hNaDC3) (Sodium-dependent high-affinity dicarboxylate transporter 2) | SLC13A3 NADC3 SDCT2 | F6WI18 | 1 |
| Solute carrier family 13 member 4 (Na(+)/sulfate cotransporter SUT-1) (NaS2) | SLC13A4 SUT1 | Q9UKG4 | 1 |
| Solute carrier family 15 member 3 (Osteoclast transporter) (Peptide transporter 3) (Peptide/histidine transporter 2) | SLC15A3 OCTP PHT2 PTR3 | Q8IY34 | 1 |
| Solute carrier family 2 (Facilitated glucose transporter), member 11 | SLC2A11 | Q504W2 | 1 |
| Solute carrier family 2, facilitated glucose transporter member 14 (Fragment) | SLC2A14 | F5H3J0 | 1 |
| Solute carrier family 2, facilitated glucose transporter member 4 (Glucose transporter type 4, insulin-responsive) (GLUT-4) | SLC2A4 GLUT4 | P14672 | 1 |
| Solute carrier family 22 member 1 | SLC22A1 | F5H5P3 | 1 |
| Solute carrier family 22 member 14 (Organic cation transporter-like 4) (ORCTL-4) | SLC22A14 OCTL2 ORCTL4 | Q9Y267 | 1 |
| Solute carrier family 22 member 16 (Carnitine transporter 2) (CT2) (Fly-like putative transporter 2) (FLIPT2) (Flipt 2) (Organic cation transporter OKB1) (Organic cation/carnitine transporter 6) | SLC22A16 OCT6 | Q86VW1 | 1 |
| Solute carrier family 22 member 20 (Organic anion transporter 6) (Solute carrier family 22 member 20 pseudogene) | SLC22A20P OAT6 SLC22A20 | A6NK97 | 1 |
| Solute carrier family 22 member 25 (Organic anion transporter UST6) | SLC22A25 UST6 | Q6T423 | 1 |
| Solute carrier family 22 member 5 (Fragment) | SLC22A5 | H7C1R8 | 1 |
| Solute carrier family 22 member 7 (Novel liver transporter) (Organic anion transporter 2) (hOAT2) | SLC22A7 NLT OAT2 | Q9Y694 | 1 |
| Solute carrier family 23 member 2 (Fragment) | SLC23A2 | H0Y544 | 1 |
| Solute carrier family 25 member 36 | SLC25A36 | D6RB26 | 1 |
| Solute carrier family 25 member 39 (Fragment) | SLC25A39 | K7EQS8 | 1 |
| Solute carrier family 26 member 6 (Solute carrier family 26, member 6, isoform CRA_i) | SLC26A6 hCG_1999608 | G3XAC1 | 1 |
| Solute carrier family 27 (Fatty acid transporter), member 2, isoform CRA_b (Very long-chain acyl-CoA synthetase) | SLC27A2 hCG_39815 | G3V1R7 | 1 |
| Solute carrier family 28 member 3 (Concentrative Na(+)-nucleoside cotransporter 3) (CNT 3) (hCNT3) | SLC28A3 CNT3 | B4E2S8 | 1 |
| Solute carrier family 35 member C2 (Ovarian cancer-overexpressed gene 1 protein) | SLC35C2 C20orf5 OVCOV1 CGI-15 | Q9NQQ7 | 1 |
| Solute carrier family 35 member E1 (Fragment) | SLC35E1 | C9JK45 | 1 |
| Solute carrier family 35 member F1 | SLC35F1 C6orf169 | Q5T1Q4 | 1 |
| Solute carrier family 35 member F5 (Hepatitis C virus NS5A-transactivated protein 3) (HCV NS5A-transactivated protein 3) | SLC35F5 NS5ATP3 UNQ2545/PRO6097 | Q8WV83 | 1 |
| Solute carrier family 41 member 3 | SLC41A3 | Q96GZ6 | 1 |
| Solute carrier family 43 member 3 (Protein FOAP-13) | SLC43A3 PSEC0252 | E7EQD2 | 1 |
| Solute carrier family 45 member 3 (Prostate cancer-associated protein 6) (Prostein) | SLC45A3 PCANAP6 PRST | Q96JT2 | 1 |
| Solute carrier family 45 member 4 | SLC45A4 KIAA1126 | Q5BKX6 | 1 |
| Solute carrier family 52, riboflavin transporter, member 2 | SLC52A2 | E9PJC1 | 1 |
| Solute carrier organic anion transporter family member 2A1 (Prostaglandin transporter) (PGT) (Solute carrier family 21 member 2) | SLCO2A1 OATP2A1 SLC21A2 | Q92959 | 1 |
| Solute carrier organic anion transporter family member 2B1 (Organic anion transporter B) (OATP-B) (Organic anion transporter polypeptide-related protein 2) (OATP-RP2) (OATPRP2) (Solute carrier family 21 member 9) | SLCO2B1 KIAA0880 OATP2B1 OATPB SLC21A9 | O94956 | 1 |
| Somatoliberin (Growth hormone-releasing factor) (GRF) (Growth hormone-releasing hormone) (GHRH) (Somatocrinin) (Somatorelin) (Sermorelin) | GHRH GHRF | P01286 | 1 |
| Son of sevenless homolog 1 (Son of sevenless homolog 1 (Drosophila), isoform CRA_d) | SOS1 hCG_1641052 | G5E9C8 | 1 |
| Sorbin and SH3 domain-containing protein 1 (Fragment) | SORBS1 | S4R406 | 1 |
| Sorbitol dehydrogenase (EC 1.1.1.14) (L-iditol 2-dehydrogenase) | SORD | B7Z3A6 | 1 |
| Sororin (Cell division cycle-associated protein 5) (p35) | CDCA5 | Q96FF9 | 1 |
| Sortilin | 0 | A8KAQ3 | 1 |
| Sorting nexin | SNX6 hCG_2013610 | A0A0A0MRI2 | 1 |
| Sorting nexin 13 | SNX13 | Q86XC4 | 1 |
| Sorting nexin-10 | SNX10 | Q9Y5X0 | 1 |
| Sorting nexin-11 (Fragment) | SNX11 | J3QRB9 | 1 |
| Sorting nexin-14 | SNX14 | D6REK1 | 1 |
| Sorting nexin-14 (Fragment) | SNX14 | D6RJG9 | 1 |
| Sorting nexin-16 | SNX16 | P57768 | 1 |
| Sorting nexin-17 | SNX17 KIAA0064 | Q6IAS3 | 1 |
| Sorting nexin-18 (SH3 and PX domain-containing protein 3B) (Sorting nexin-associated Golgi protein 1) | SNX18 SH3PXD3B SNAG1 | H7BXX3 | 1 |
| Sorting nexin-20 (Selectin ligand-interactor cytoplasmic 1) (SLIC-1) | SNX20 SLIC1 | Q7Z614 | 1 |
| Sorting nexin-4 (Fragment) | SNX4 | F8W9T3 | 1 |
| Sorting nexin-7 | SNX7 | E9PLE1 | 1 |
| Sorting nexin-7 (Fragment) | SNX7 | B7ZC83 | 1 |
| SOSS complex subunit B1 (Nucleic acid-binding protein 2) (Oligonucleotide/oligosaccharide-binding fold-containing protein 2B) (Sensor of single-strand DNA complex subunit B1) (Sensor of ssDNA subunit B1) (SOSS-B1) (Single-stranded DNA-binding protein 1) (hSSB1) | NABP2 OBFC2B SSB1 LP3587 | Q9BQ15 | 1 |
| SOSS complex subunit C (INTS3- and NABP-interacting protein) (Sensor of single-strand DNA complex subunit C) (Sensor of ssDNA subunit C) (SOSS-C) (Single-stranded DNA-binding protein-interacting protein 1) (SSB-interacting protein 1) (hSSBIP1) | INIP C9orf80 SSBIP1 HSPC043 HSPC291 | Q9NRY2 | 1 |
| Sp110 nuclear body protein (Interferon-induced protein 41/75) (Speckled 110 kDa) (Transcriptional coactivator Sp110) | SP110 | Q9HB58 | 1 |
| SPARC-related modular calcium-binding protein 2 (Fragment) | SMOC2 | H0Y3J4 | 1 |
| Sparc/osteonectin, cwcv and kazal-like domains proteoglycan (Testican) 1, isoform CRA_a | SPOCK1 hCG_39479 | D3DQB3 | 1 |
| Speckle targeted PIP5K1A-regulated poly(A) polymerase (Star-PAP) (EC 2.7.7.19) (RNA-binding motif protein 21) (RNA-binding protein 21) (U6 snRNA-specific terminal uridylyltransferase 1) (U6-TUTase) (EC 2.7.7.52) | TUT1 RBM21 | Q9H6E5 | 1 |
| Spectrin beta chain, non-erythrocytic 4 (Beta-IV spectrin) (Spectrin, non-erythroid beta chain 3) | SPTBN4 KIAA1642 SPTBN3 | E9PGQ5 | 1 |
| Speedy protein E4 | SPDYE4 | A6NLX3 | 1 |
| Speriolin-like protein (Spermatogenesis and centriole-associated protein 1-like protein) | SPATC1L C21orf56 | Q9H0A9 | 1 |
| Sperm equatorial segment protein 1 (ESP) (Equatorial segment protein) (SP-ESP) (Glycosylated 38 kDa sperm protein C-7/8) | SPESP1 UNQ732/PRO1418 | Q6UW49 | 1 |
| Sperm flagellar protein 1 | SPEF1 C20orf28 | Q9Y4P9 | 1 |
| Sperm protein associated with the nucleus on the X chromosome N5 (Nuclear-associated protein SPAN-Xn5) (SPANX-N5) (SPANX family member N5) | SPANXN5 | Q5MJ07 | 1 |
| Sperm surface protein Sp17 (Cancer/testis antigen 22) (CT22) (Sp17-1) (Sperm autoantigenic protein 17) (Sperm protein 17) | SPA17 SP17 | Q15506 | 1 |
| Sperm-associated antigen 11A (Human epididymis-specific protein 2) (He2) (Protein EP2) (Sperm antigen HE2) | SPAG11A EP2 HE2 | Q6PDA7 | 1 |
| Spermatid-specific linker histone H1-like protein | HILS1 | P60008 | 1 |
| Spermatogenesis-associated protein 13 (APC-stimulated guanine nucleotide exchange factor 2) (Asef2) | SPATA13 | Q96N96 | 1 |
| Spermatogenesis-associated protein 16 (Testis development protein NYD-SP12) | SPATA16 | Q9BXB7 | 1 |
| Spermatogenesis-associated protein 2 (Spermatogenesis-associated protein PD1) | SPATA2 KIAA0757 PD1 | Q9UM82 | 1 |
| Spermatogenesis-associated protein 20 (Sperm-specific protein 411) (Ssp411) | SPATA20 | Q8TB22 | 1 |
| Spermatogenesis-associated protein 31A1 (Protein FAM75A1) | SPATA31A1 C9orf36 FAM75A1 FAM75A2 SPATA31A2 | Q5TZJ5 | 1 |
| Spermatogenesis-associated protein 31A6 (Protein FAM75A6) | SPATA31A6 FAM75A6 | Q5VVP1 | 1 |
| Spermatogenesis-associated protein 31E1 (Protein FAM75E1) | SPATA31E1 C9orf79 FAM75E1 | Q6ZUB1 | 1 |
| Spermatogenesis-associated protein 32 | SPATA32 | K7EQM9 | 1 |
| Spermatogenesis-associated protein 32 (Testis-expressed protein 34) | SPATA32 C17orf46 TEX34 | Q96LK8 | 1 |
| Spermatogenesis-associated protein 33 | SPATA33 | A0A087WYH0 | 1 |
| Spermatogenesis-associated protein 33 (Fragment) | SPATA33 | J3KS00 | 1 |
| Spermatogenesis-associated protein 4 (Testis and spermatogenesis cell-related protein 2) (Testis spermatocyte apoptosis-related gene 2 protein) | SPATA4 TSARG2 | Q8NEY3 | 1 |
| Spermatogenesis-associated protein 9 (Testis development protein NYD-SP16) | SPATA9 | Q9BWV2 | 1 |
| Spermatogenesis-associated serine-rich protein 2 | SPATS2 | F8VS10 | 1 |
| Spermatogenesis-defective protein 39 homolog | VIPAS39 | G3V4K3 | 1 |
| Spermidine synthase | SRM | K7EKM4 | 1 |
| Spermine oxidase (EC 1.5.3.16) (Polyamine oxidase 1) (PAO-1) (PAOh1) | SMOX C20orf16 SMO UNQ3039/PRO9854 | Q9NWM0 | 1 |
| Sphingomyelin phosphodiesterase 3 | 0 | Q1ZYL9 | 1 |
| Sphingomyelin phosphodiesterase 4 (Fragment) | SMPD4 | C9J647 | 1 |
| Sphingosine kinase 2 | SPHK2 | M0R0E9 | 1 |
| Sphingosine kinase 2 (SK 2) (SPK 2) (EC 2.7.1.91) | SPHK2 | Q9NRA0 | 1 |
| Spindle and centriole-associated protein 1 (Coiled-coil domain-containing protein 52) (Spindle and centriole-associated protein) | SPICE1 CCDC52 SPICE | Q8N0Z3 | 1 |
| Spindle and centriole-associated protein 1 (Fragment) | SPICE1 | H7C5N4 | 1 |
| Spindle and kinetochore-associated protein 1 | SKA1 C18orf24 | Q96BD8 | 1 |
| Spindle and kinetochore-associated protein 3 | SKA3 C13orf3 RAMA1 | Q8IX90 | 1 |
| Spindlin-4 | SPIN4 | Q56A73 | 1 |
| Spliceosome RNA helicase DDX39B (Fragment) | DDX39B | H0Y400 | 1 |
| Splicing factor 1 (Fragment) | SF1 | C9J792 | 1 |
| Splicing factor 3B subunit 1 (Fragment) | SF3B1 | H7C341 | 1 |
| Splicing factor 3B subunit 1 (Pre-mRNA-splicing factor SF3b 155 kDa subunit) (SF3b155) (Spliceosome-associated protein 155) (SAP 155) | SF3B1 SAP155 | E9PCH3 | 1 |
| Splicing factor U2AF 65 kDa subunit (U2 auxiliary factor 65 kDa subunit) (hU2AF(65)) (hU2AF65) (U2 snRNP auxiliary factor large subunit) | U2AF2 U2AF65 | Q96HC5 | 1 |
| Splicing factor, arginine/serine-rich 12 variant (Fragment) | 0 | Q59EW7 | 1 |
| Splicing factor, proline- and glutamine-rich (Fragment) | SFPQ | H0Y9K7 | 1 |
| Splicing factor, proline- and glutamine-rich (Fragment) | SFPQ | H0Y9U2 | 1 |
| Splicing regulatory glutamine/lysine-rich protein 1 | SREK1 | A0A087WY03 | 1 |
| SPRY domain-containing SOCS box protein 4 (SSB-4) | SPSB4 SSB4 | Q96A44 | 1 |