| Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform (PP2A subunit A isoform PR65-beta) (PP2A subunit A isoform R1-beta) | PPP2R1B | F8W8G1 | 1 |
| Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator) | DKFZp781M17165 PTPA | Q68CR8 | 1 |
| Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator) | 0 | B4DZF8 | 1 |
| Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator) (Fragment) | PTPA | A6PVN8 | 1 |
| Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator) (Fragment) | PTPA | Q5T948 | 1 |
| Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator) (Fragment) | PTPA | A6PVN7 | 1 |
| Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator) (Fragment) | PTPA | H0Y6E5 | 1 |
| Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator) (Fragment) | PTPA | H0Y562 | 1 |
| Serine/threonine-protein phosphatase 2A catalytic subunit beta isoform | PPP2CB | E5RJX4 | 1 |
| Serine/threonine-protein phosphatase 2A catalytic subunit beta isoform (Fragment) | PPP2CB | H0YBN9 | 1 |
| Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit gamma (Protein phosphatase subunit G5PR) (Rhabdomyosarcoma antigen MU-RMS-40.6A/6C) | PPP2R3C C14orf10 G5PR | Q969Q6 | 1 |
| Serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform (EC 3.1.3.16) (CAM-PRP catalytic subunit) (Calmodulin-dependent calcineurin A subunit alpha isoform) | PPP3CA CALNA CNA | A1A441 | 1 |
| Serine/threonine-protein phosphatase 2B catalytic subunit beta isoform (Fragment) | PPP3CB | Q5F2G0 | 1 |
| Serine/threonine-protein phosphatase 6 regulatory ankyrin repeat subunit A (cDNA FLJ54784, highly similar to Ankyrin repeat domain-containing protein 28) | ANKRD28 | B4DIW9 | 1 |
| Serine/threonine-protein phosphatase 6 regulatory ankyrin repeat subunit C (PP6-ARS-C) (Serine/threonine-protein phosphatase 6 regulatory subunit ARS-C) (Ankyrin repeat domain-containing protein 52) | ANKRD52 | Q8NB46 | 1 |
| Serine/threonine-protein phosphatase PP1-alpha catalytic subunit (PP-1A) (EC 3.1.3.16) | PPP1CA PPP1A | A6NNR3 | 1 |
| Serine/threonine-protein phosphatase PP1-gamma catalytic subunit (Fragment) | PPP1CC | F8W1A0 | 1 |
| Serologically defined colon cancer antigen 8 (Antigen NY-CO-8) (Centrosomal colon cancer autoantigen protein) (hCCCAP) | SDCCAG8 CCCAP NPHP10 HSPC085 | Q86SQ7 | 1 |
| Serotonin N-acetyltransferase (Serotonin acetylase) (EC 2.3.1.87) (Aralkylamine N-acetyltransferase) (AA-NAT) | AANAT SNAT | Q16613 | 1 |
| Serotransferrin | TF | F8WC57 | 1 |
| Serotransferrin (Fragment) | TF | C9JB55 | 1 |
| Serotransferrin (Fragment) | TF | H7C5E8 | 1 |
| Serpin A9 (Centerin) (Germinal center B-cell-expressed transcript 1 protein) | SERPINA9 GCET1 SERPINA11 UNQ692/PRO1337 | Q86WD7 | 1 |
| Serpin B4 (Fragment) | SERPINB4 | C9JZ65 | 1 |
| Serpin E3 | SERPINE3 | A8MV23 | 1 |
| SERTA domain-containing protein 2 (Transcriptional regulator interacting with the PHD-bromodomain 2) (TRIP-Br2) | SERTAD2 KIAA0127 | Q14140 | 1 |
| Serum albumin | ALB | A0A087WWT3 | 1 |
| Serum albumin | ALB | D6RHD5 | 1 |
| Serum albumin | ALB | A0A0C4DGB6 | 1 |
| Serum paraoxonase/lactonase 3 (EC 3.1.1.2) (EC 3.1.1.81) (EC 3.1.8.1) | PON3 | A4D1H8 | 1 |
| Sesquipedalian-2 (Ses2) (27 kDa inositol polyphosphate phosphatase interacting protein B) (IPIP27B) | FAM109B | Q6ICB4 | 1 |
| Sestrin-1 (EC 1.11.1.15) (p53-regulated protein PA26) | SESN1 PA26 SEST1 | Q9Y6P5 | 1 |
| Sestrin-3 | SESN3 SEST3 | P58005 | 1 |
| SET and MYND domain-containing protein 4 (EC 2.1.1.-) | SMYD4 KIAA1936 | Q8IYR2 | 1 |
| SET and MYND domain-containing protein 5 | SMYD5 | F8WEJ9 | 1 |
| SET domain-containing protein 4 | SETD4 | A8MTS1 | 1 |
| SET domain-containing protein 5 | SETD5 | E7EWN3 | 1 |
| SET-binding protein (SEB) | SETBP1 KIAA0437 | Q9Y6X0 | 1 |
| Set1/Ash2 histone methyltransferase complex subunit ASH2 | ASH2L | F5H8F7 | 1 |
| Seven transmembrane helix receptor | 0 | Q8NGM0 | 1 |
| Sex comb on midleg-like protein 1 | SCML1 | Q9UN30 | 1 |
| SH2 domain-containing adapter protein E | SHE | Q5VZ18 | 1 |
| SH2 domain-containing protein 4A (Fragment) | SH2D4A | H0YAT1 | 1 |
| SH2 domain-containing protein 7 | SH2D7 | A6NKC9 | 1 |
| SH2B adapter protein 3 (Lymphocyte adapter protein) (Lymphocyte-specific adapter protein Lnk) (Signal transduction protein Lnk) | SH2B3 LNK | Q9UQQ2 | 1 |
| SH3 and multiple ankyrin repeat domains protein 1 | SHANK1 | H9KV90 | 1 |
| SH3 and multiple ankyrin repeat domains protein 2 | SHANK2 | A6NHU9 | 1 |
| SH3 and PX domain-containing protein 2B (SH3 and PX domains 2B, isoform CRA_b) | SH3PXD2B hCG_40282 | G3V144 | 1 |
| SH3 domain and tetratricopeptide repeat-containing protein 2 (Fragment) | SH3TC2 | H0Y9E7 | 1 |
| SH3 domain binding glutamic acid-rich protein like 3, isoform CRA_a (Fragment) | SH3BGRL3 hCG_1739142 | D3DPK5 | 1 |
| SH3 domain-binding glutamic acid-rich protein (Fragment) | SH3BGR | H7C1Y8 | 1 |
| SH3 domain-binding glutamic acid-rich protein (SH3BGR protein) (21-glutamic acid-rich protein) (21-GARP) | SH3BGR | P55822 | 1 |
| SH3 domain-binding protein 5 (SH3BP-5) (SH3 domain-binding protein that preferentially associates with BTK) | SH3BP5 SAB | O60239 | 1 |
| SH3 domain-binding protein 5-like (SH3BP-5-like) | SH3BP5L KIAA1720 UNQ2766/PRO7133 | Q7L8J4 | 1 |
| SH3 domain-containing protein 19 (ADAM-binding protein Eve-1) (EEN-binding protein) (EBP) | SH3D19 | Q5HYK7 | 1 |
| SH3 domain-containing RING finger protein 3 (Plenty of SH3s 2) (SH3 multiple domains protein 4) | SH3RF3 POSH2 SH3MD4 | Q8TEJ3 | 1 |
| SH3 domain-containing YSC84-like protein 1 (Fragment) | SH3YL1 | H7C1B8 | 1 |
| SH3-containing GRB2-like protein 3-interacting protein 1 (Fragment) | SGIP1 | F6R8P8 | 1 |
| SH3-domain GRB2-like 3, isoform CRA_a (SH3GL3 protein) | SH3GL3 hCG_26601 | Q8IVP1 | 1 |
| SH3KBP1-binding protein 1 (Fragment) | SHKBP1 | M0R0S1 | 1 |
| SH3KBP1-binding protein 1 (Fragment) | SHKBP1 | M0R204 | 1 |
| SHC-transforming protein 2 (Protein Sck) (SHC-transforming protein B) (Src homology 2 domain-containing-transforming protein C2) (SH2 domain protein C2) | SHC2 SCK SHCB | P98077 | 1 |
| SHC-transforming protein 3 (Neuronal Shc) (N-Shc) (Protein Rai) (SHC-transforming protein C) (Src homology 2 domain-containing-transforming protein C3) (SH2 domain protein C3) | SHC3 NSHC SHCC | Q92529 | 1 |
| Short stature homeobox protein 2 (Homeobox protein Og12X) (Paired-related homeobox protein SHOT) | SHOX2 OG12X SHOT | O60902 | 1 |
| Short transient receptor potential channel 4 (TRPC4 protein) | TRPC4 | Q3MHB9 | 1 |
| Short transmembrane mitochondrial protein 1 | STMP1 C7orf73 | E0CX11 | 1 |
| Short-chain dehydrogenase/reductase family 9C member 7 (EC 1.1.1.-) (Orphan short-chain dehydrogenase/reductase) (SDR-O) (RDH-S) | SDR9C7 RDHS SDRO | Q8NEX9 | 1 |
| Short-chain-specific acyl-CoA dehydrogenase, mitochondrial | ACADS | E9PE82 | 1 |
| Shugoshin 1 (Serologically defined breast cancer antigen NY-BR-85) (Shugoshin-like 1) | SGO1 SGOL1 | Q5FBB7 | 1 |
| Sia-alpha-2,3-Gal-beta-1,4-GlcNAc-R:alpha 2,8-sialyltransferase (EC 2.4.99.-) (Alpha-2,8-sialyltransferase 8C) (Alpha-2,8-sialyltransferase III) (ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 3) (Sialyltransferase 8C) (SIAT8-C) (Sialyltransferase St8Sia III) (ST8SiaIII) | ST8SIA3 SIAT8C | O43173 | 1 |
| Sialic acid-binding Ig-like lectin 12 (Siglec-12) (Sialic acid-binding Ig-like lectin-like 1) (Siglec-L1) | SIGLEC12 SIGLECL1 SLG UNQ9215/PRO34042 | Q96PQ1 | 1 |
| Sialic acid-binding Ig-like lectin 5 (Siglec-5) (CD33 antigen-like 2) (Obesity-binding protein 2) (OB-BP2) (OB-binding protein 2) (CD antigen CD170) | SIGLEC5 CD33L2 OBBP2 | O15389 | 1 |
| Sialic acid-binding Ig-like lectin 6 (Siglec-6) (CD33 antigen-like 1) (CDw327) (Obesity-binding protein 1) (OB-BP1) (CD antigen CD327) | SIGLEC6 CD33L CD33L1 OBBP1 | O43699 | 1 |
| Sialic acid-binding Ig-like lectin 8 (Siglec-8) (Sialoadhesin family member 2) (SAF-2) | SIGLEC8 SAF2 | Q9NYZ4 | 1 |
| Sialidase-1 | NEU1 | E9PIF4 | 1 |
| Sideroflexin | SFXN3 | A0A0A0MS41 | 1 |
| Sideroflexin-5 | SFXN5 | Q8TD22 | 1 |
| Sideroflexin-5 (Fragment) | SFXN5 | H7C1S9 | 1 |
| SIGLEC family-like protein 1 | SIGLECL1 C19orf75 | Q8N7X8 | 1 |
| Signal peptidase complex catalytic subunit SEC11 (EC 3.4.21.89) | SPC18 | Q6IAM7 | 1 |
| Signal peptidase complex subunit 3 (EC 3.4.-.-) (Microsomal signal peptidase 22/23 kDa subunit) (SPC22/23) (SPase 22/23 kDa subunit) | SPCS3 SPC22 UNQ1841/PRO3567 | Q9H0S7 | 1 |
| Signal peptide peptidase-like 2C (SPP-like 2C) (SPPL2c) (EC 3.4.23.-) (Intramembrane protease 5) (IMP-5) | SPPL2C IMP5 | Q8IUH8 | 1 |
| Signal recognition particle 19 kDa protein | SRP19 | A0A087WYR0 | 1 |
| Signal recognition particle 54 kDa protein (Fragment) | SRP54 | G3V480 | 1 |
| Signal recognition particle receptor subunit alpha (SR-alpha) (Docking protein alpha) (DP-alpha) | SRPRA SRPR | B4E0H3 | 1 |
| Signal recognition particle receptor subunit alpha (SR-alpha) (Docking protein alpha) (DP-alpha) | SRPRA SRPR | E9PJS4 | 1 |
| Signal transducer and activator of transcription | 0 | A8K4S9 | 1 |
| Signal transducer and activator of transcription 1-alpha/beta (Fragment) | STAT1 | E7EPD2 | 1 |
| Signal transducer CD24 (Small cell lung carcinoma cluster 4 antigen) (CD antigen CD24) | CD24 CD24A | P25063 | 1 |
| Signal-induced proliferation-associated protein 1 | SIPA1 | F6RY50 | 1 |
| Signal-regulatory protein gamma (SIRP-gamma) (CD172 antigen-like family member B) (Signal-regulatory protein beta-2) (SIRP-b2) (SIRP-beta-2) (CD antigen CD172g) | SIRPG SIRPB2 | Q9P1W8 | 1 |
| Similar to plexin A (Fragment) | 0 | Q86YC4 | 1 |
| Similar to small nuclear ribonucleoprotein polypeptide B'' (Fragment) | 0 | Q86YK2 | 1 |
| SIN3-HDAC complex-associated factor (Protein FAM60A) (Tera protein homolog) | SINHCAF C12orf14 FAM60A L4 | Q9NP50 | 1 |
| Sine oculis-binding protein homolog (Jackson circler protein 1) | SOBP JXC1 | A7XYQ1 | 1 |
| Single-chain Fv (Fragment) | scFv | Q65ZC8 | 1 |
| Single-pass membrane and coiled-coil domain-containing protein 2 | SMCO2 C12orf70 | A6NFE2 | 1 |
| Single-strand selective monofunctional uracil DNA glycosylase | SMUG1 | D6RAI1 | 1 |
| Single-stranded DNA binding protein 1, isoform CRA_c (cDNA FLJ51825, highly similar to Single-stranded DNA-binding protein, mitochondrial) | SSBP1 hCG_2014251 | B7Z268 | 1 |
| Single-stranded DNA cytosine deaminase (Fragment) | AICDA | H0YFL3 | 1 |