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Protein S100P PDB 1j55.png
Available structures
PDB Human UniProt search: PDBe RCSB
Aliases S100P, MIG9, S100 calcium binding protein P
External IDs HomoloGene: 81743 GeneCards: S100P
Genetically Related Diseases
RNA expression pattern
PBB GE S100P 204351 at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 4: 6.69 – 6.7 Mb n/a
PubMed search [2] n/a
View/Edit Human

S100 calcium-binding protein P (S100P) is a protein that in humans is encoded by the S100P gene.[3][4][5]


The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21; however, this gene is located at 4p16. This protein, in addition to binding Ca2+, also binds Zn2+ and Mg2+. This protein may play a role in the etiology of prostate cancer.[5]


S100P has been shown to interact with EZR [6] and RAGE.[7] The interactions between S100P and RAGE are disrupted by cromolyn[8] and pentamidine.[7]


  1. ^ "Diseases that are genetically associated with S100P view/edit references on wikidata". 
  2. ^ "Human PubMed Reference:". 
  3. ^ Engelkamp D, Schäfer BW, Mattei MG, Erne P, Heizmann CW (Aug 1993). "Six S100 genes are clustered on human chromosome 1q21: identification of two genes coding for the two previously unreported calcium-binding proteins S100D and S100E". Proc Natl Acad Sci U S A. 90 (14): 6547–51. doi:10.1073/pnas.90.14.6547. PMC 46969Freely accessible. PMID 8341667. 
  4. ^ Schäfer BW, Wicki R, Engelkamp D, Mattei MG, Heizmann CW (Jun 1995). "Isolation of a YAC clone covering a cluster of nine S100 genes on human chromosome 1q21: rationale for a new nomenclature of the S100 calcium-binding protein family". Genomics. 25 (3): 638–43. doi:10.1016/0888-7543(95)80005-7. PMID 7759097. 
  5. ^ a b "Entrez Gene: S100P S100 calcium binding protein P". 
  6. ^ Koltzscher M, Neumann C, König S, Gerke V (Jun 2003). "Ca2+-dependent binding and activation of dormant ezrin by dimeric S100P". Molecular Biology of the Cell. 14 (6): 2372–84. doi:10.1091/mbc.E02-09-0553. PMC 194886Freely accessible. PMID 12808036. 
  7. ^ a b Penumutchu SR, Chou RH, Yu C (2014-08-01). "Structural insights into calcium-bound S100P and the V domain of the RAGE complex". PLOS ONE. 9 (8): e103947. doi:10.1371/journal.pone.0103947. PMC 4118983Freely accessible. PMID 25084534. 
  8. ^ Penumutchu SR, Chou RH, Yu C (Oct 2014). "Interaction between S100P and the anti-allergy drug cromolyn". Biochemical and Biophysical Research Communications. 454 (3): 404–409. doi:10.1016/j.bbrc.2014.10.048. PMID 25450399. 

Further reading[edit]