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NameProtein S100-B
Synonyms
  • S-100 protein beta chain
  • S-100 protein subunit beta
  • S100 calcium-binding protein B
Gene NameS100B
OrganismHuman
Amino acid sequence
>lcl|BSEQ0010821|Protein S100-B
MSELEKAMVALIDVFHQYSGREGDKHKLKKSELKELINNELSHFLEEIKEQEVVDKVMET
LDNDGDGECDFQEFMAFVAMVTTACHEFFEHE
Number of residues92
Molecular Weight10712.985
Theoretical pI4.25
GO Classification
Functions
  • protein homodimerization activity
  • calcium-dependent protein binding
  • S100 protein binding
  • RAGE receptor binding
  • identical protein binding
  • tau protein binding
  • zinc ion binding
  • calcium ion binding
Processes
  • cell proliferation
  • long-term synaptic potentiation
  • positive regulation of I-kappaB kinase/NF-kappaB signaling
  • innate immune response
  • positive regulation of apoptotic process
  • astrocyte differentiation
  • positive regulation of cell proliferation
  • negative regulation of skeletal muscle cell differentiation
  • response to glucocorticoid
  • regulation of neuronal synaptic plasticity
  • axonogenesis
  • cellular response to hypoxia
  • memory
  • response to methylmercury
  • central nervous system development
  • regulation of cell shape
  • learning or memory
Components
  • perinuclear region of cytoplasm
  • ruffle
  • intracellular membrane-bounded organelle
  • cytoplasm
  • neuronal cell body
  • extracellular region
  • nucleus
  • extracellular space
General FunctionZinc ion binding
Specific FunctionWeakly binds calcium but binds zinc very tightly-distinct binding sites with different affinities exist for both ions on each monomer. Physiological concentrations of potassium ion antagonize the binding of both divalent cations, especially affecting high-affinity calcium-binding sites. Binds to and initiates the activation of STK38 by releasing autoinhibitory intramolecular interactions within the kinase. Interaction with AGER after myocardial infarction may play a role in myocyte apoptosis by activating ERK1/2 and p53/TP53 signaling. Could assist ATAD3A cytoplasmic processing, preventing aggregation and favoring mitochondrial localization. May mediate calcium-dependent regulation on many physiological processes by interacting with other proteins, such as TPR-containing proteins, and modulating their activity.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein ID337730
UniProtKB IDP04271
UniProtKB Entry NameS100B_HUMAN
Cellular LocationCytoplasm
Gene sequence
>lcl|BSEQ0010822|Protein S100-B (S100B)
ATGTCTGAGCTGGAGAAGGCCATGGTGGCCCTCATCGACGTTTTCCACCAATATTCTGGA
AGGGAGGGAGACAAGCACAAGCTGAAGAAATCCGAACTGAAGGAGCTCATCAACAATGAG
CTTTCCCATTTCTTAGAGGAAATCAAAGAGCAGGAGGTTGTGGACAAAGTCATGGAAACA
CTGGACAATGATGGAGACGGCGAATGTGACTTCCAGGAATTCATGGCCTTTGTTGCCATG
GTTACTACTGCCTGCCACGAGTTCTTTGAACATGAGTGA
GenBank Gene IDM59488
GeneCard IDNot Available
GenAtlas IDS100B
HGNC IDHGNC:10500
Chromosome Location21
LocusNot Available
References
  1. Allore RJ, Friend WC, O'Hanlon D, Neilson KM, Baumal R, Dunn RJ, Marks A: Cloning and expression of the human S100 beta gene. J Biol Chem. 1990 Sep 15;265(26):15537-43. 2394738
  2. Hattori M, Fujiyama A, Taylor TD, Watanabe H, Yada T, Park HS, Toyoda A, Ishii K, Totoki Y, Choi DK, Groner Y, Soeda E, Ohki M, Takagi T, Sakaki Y, Taudien S, Blechschmidt K, Polley A, Menzel U, Delabar J, Kumpf K, Lehmann R, Patterson D, Reichwald K, Rump A, Schillhabel M, Schudy A, Zimmermann W, Rosenthal A, Kudoh J, Schibuya K, Kawasaki K, Asakawa S, Shintani A, Sasaki T, Nagamine K, Mitsuyama S, Antonarakis SE, Minoshima S, Shimizu N, Nordsiek G, Hornischer K, Brant P, Scharfe M, Schon O, Desario A, Reichelt J, Kauer G, Blocker H, Ramser J, Beck A, Klages S, Hennig S, Riesselmann L, Dagand E, Haaf T, Wehrmeyer S, Borzym K, Gardiner K, Nizetic D, Francis F, Lehrach H, Reinhardt R, Yaspo ML: The DNA sequence of human chromosome 21. Nature. 2000 May 18;405(6784):311-9. 10830953
  3. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. 15489334
  4. Jensen R, Marshak DR, Anderson C, Lukas TJ, Watterson DM: Characterization of human brain S100 protein fraction: amino acid sequence of S100 beta. J Neurochem. 1985 Sep;45(3):700-5. 4031854
  5. Baudier J, Glasser N, Haglid K, Gerard D: Purification, characterization and ion binding properties of human brain S100b protein. Biochim Biophys Acta. 1984 Oct 23;790(2):164-73. 6487634
  6. Yang Q, O'Hanlon D, Heizmann CW, Marks A: Demonstration of heterodimer formation between S100B and S100A6 in the yeast two-hybrid system and human melanoma. Exp Cell Res. 1999 Feb 1;246(2):501-9. 9925766
  7. Park H, Adsit FG, Boyington JC: The 1.5 A crystal structure of human receptor for advanced glycation endproducts (RAGE) ectodomains reveals unique features determining ligand binding. J Biol Chem. 2010 Dec 24;285(52):40762-70. doi: 10.1074/jbc.M110.169276. Epub 2010 Oct 13. 20943659
  8. Gilquin B, Cannon BR, Hubstenberger A, Moulouel B, Falk E, Merle N, Assard N, Kieffer S, Rousseau D, Wilder PT, Weber DJ, Baudier J: The calcium-dependent interaction between S100B and the mitochondrial AAA ATPase ATAD3A and the role of this complex in the cytoplasmic processing of ATAD3A. Mol Cell Biol. 2010 Jun;30(11):2724-36. doi: 10.1128/MCB.01468-09. Epub 2010 Mar 29. 20351179
  9. Yamaguchi F, Umeda Y, Shimamoto S, Tsuchiya M, Tokumitsu H, Tokuda M, Kobayashi R: S100 proteins modulate protein phosphatase 5 function: a link between CA2+ signal transduction and protein dephosphorylation. J Biol Chem. 2012 Apr 20;287(17):13787-98. doi: 10.1074/jbc.M111.329771. Epub 2012 Mar 7. 22399290
  10. Smith SP, Shaw GS: A novel calcium-sensitive switch revealed by the structure of human S100B in the calcium-bound form. Structure. 1998 Feb 15;6(2):211-22. 9519411
  11. McClintock KA, Shaw GS: A novel S100 target conformation is revealed by the solution structure of the Ca2+-S100B-TRTK-12 complex. J Biol Chem. 2003 Feb 21;278(8):6251-7. Epub 2002 Dec 11. 12480931