| 词条 | S100 protein |
| 释义 |
| Symbol = S_100 | Name = S100/ICaBP type calcium binding domain | image = Protein_S100B_PDB_1b4c.png | width = | caption = Structure of the S100B protein. Based on PyMOL rendering of PDB 1b4c. | Pfam= PF01023 | InterPro= IPR013787 | SMART= | Prosite = PDOC00275 | SCOP = 1cnp | TCDB = | OPM family= | OPM protein= | PDB={{PDB3|1yut}}B:9-52 {{PDB3|1yuu}}A:9-52 {{PDB3|1yus}}B:9-52{{PDB3|1yur}}A:9-52 {{PDB3|1k8u}}A:5-50 {{PDB3|1k9p}}A:5-50{{PDB3|1k96}}A:5-50 {{PDB3|1k9k}}A:5-50 {{PDB3|1cnp}}B:5-50{{PDB3|1a03}}A:5-50 {{PDB3|2cnp}}B:5-50 {{PDB3|1jwd}}B:5-50{{PDB3|1m31}}A:5-48 {{PDB3|1k2h}}B:5-48 {{PDB3|1cfp}}B:4-47{{PDB3|1psb}}A:4-47 {{PDB3|1mho}} :4-47 {{PDB3|1uwo}}A:4-47{{PDB3|1mq1}}B:4-47 {{PDB3|1b4c}}B:4-47 {{PDB3|1sym}}A:4-47{{PDB3|1qlk}}B:4-47 {{PDB3|1xyd}}B:4-47 {{PDB3|1dt7}}B:4-47{{PDB3|1mwn}}A:4-47 {{PDB3|1j55}}A:4-47 {{PDB3|1ozo}}A:4-47{{PDB3|1kso}}A:5-48 {{PDB3|1irj}}H:8-51 {{PDB3|1xk4}}K:8-51{{PDB3|1gqm}}I:4-47 {{PDB3|1odb}}D:4-47 {{PDB3|1e8a}}B:4-47{{PDB3|1clb}} :5-46 {{PDB3|1ig5}}A:5-46 {{PDB3|2bca}} :5-46{{PDB3|1qx2}}B:5-46 {{PDB3|1bod}} :5-46 {{PDB3|1b1g}}A:5-46{{PDB3|1kcy}}A:5-46 {{PDB3|1ht9}}A:5-46 {{PDB3|2bcb}} :5-46{{PDB3|1n65}}A:5-46 {{PDB3|1boc}} :5-46 {{PDB3|3icb}} :5-46{{PDB3|1kqv}}A:5-46 {{PDB3|1ksm}}A:5-46 {{PDB3|1cdn}} :5-46{{PDB3|4icb}} :5-46 {{PDB3|1igv}}A:5-46 {{PDB3|1d1o}}A:5-46{{PDB3|1cb1}} :4-46 {{PDB3|1a4p}}B:5-45 {{PDB3|1bt6}}A:5-45{{PDB3|1nsh}}B:7-50 {{PDB3|1v4z}}A:10-19 {{PDB3|1v50}}A:10-19{{PDB3|1qls}}A:8-51 {{PDB3|1mr8}}B:5-48 {{PDB3|1psr}}B:6-46{{PDB3|2psr}} :6-46 {{PDB3|3psr}}A:6-46 }} The S100 proteins are a family of low-molecular-weight proteins found in vertebrates and characterized by two calcium-binding sites that have helix-loop-helix ("EF-hand type") conformation. There are at least 21 different S100 proteins.[1] They are encoded by a family of genes whose symbols use the S100 prefix, for example, S100A1, S100A2, S100A3. They are also considered as Damage-associated molecular pattern molecules (DAMPs) and knockdown of AHR downregulates the expression of S100 proteins in THP-1 cells.[2] StructureMost S100 proteins are homodimeric, consisting of two identical polypeptides, which are held together by non-covalent bonds. S100 proteins are structurally similar to calmodulin. On the other hand, they differ from calmodulin on the other features. For instance, their expression pattern is cell-specific, i.e. they are expressed in particular cell types. Their expression depends on environmental factors. To contrast, calmodulin is a ubiquitous and universal intracellular Ca2+ receptor widely expressed in many cells. Normal functionS100 proteins are normally present in cells derived from the neural crest (Schwann cells, and melanocytes), chondrocytes, adipocytes, myoepithelial cells, macrophages, Langerhans cells,[3][4] dendritic cells,[5] and keratinocytes. It may be present in some breast epithelial cells. S100 proteins have been implicated in a variety of intracellular and extracellular functions.[6] S100 proteins are involved in regulation of protein phosphorylation, transcription factors, Ca2+ homeostasis, the dynamics of cytoskeleton constituents, enzyme activities, cell growth and differentiation, and the inflammatory response. S100A7 (psoriasin) and S100A15 have been found to act as cytokines in inflammation, particularly in autoimmune skin conditions such as psoriasis.[7] PathologySeveral members of the S100 protein family are useful as markers for certain tumors and epidermal differentiation. It can be found in melanomas,[8] 100% of schwannomas, 100% of neurofibromas (weaker than schwannomas), 50% of malignant peripheral nerve sheath tumors (may be weak and/or focal), paraganglioma stromal cells, histiocytoma and clear cell sarcomas. Further, S100 proteins are markers for inflammatory diseases and can mediate inflammation and act as antimicrobials.[9] S100 proteins have been used in the lab as cell markers for anatomic pathology. Human genes
CRNN; FLG; FLG2; HRNR; RPTN; S100G; TCHH; THHL1; NomenclatureThe "S100" symbol prefix is derived from the fact that these proteins are soluble in 100%, i.e. saturated, ammonium sulfate at neutral pH. The symbol has often been hyphenated,[12] but current gene and protein nomenclature, such as HGNC nomenclature, does not use hyphens in symbols. See also
References1. ^{{cite journal |vauthors=Marenholz I, Heizmann CW, Fritz G |title=S100 proteins in mouse and man: from evolution to function and pathology (including an update of the nomenclature) |journal=Biochemical and Biophysical Research Communications |volume=322 |issue=4 |pages=1111–22 |year=2004 |pmid=15336958 |doi=10.1016/j.bbrc.2004.07.096 }} 2. ^{{cite journal |vauthors=Memari B, Bouttier M, Dimitrov V, Ouellette M, Behr MA, Fritz JH, White JH |title=Engagement of the Aryl Hydrocarbon Receptor in Mycobacterium tuberculosis-Infected Macrophages Has Pleiotropic Effects on Innate Immune Signaling |journal=Journal of Immunology |volume=195 |issue=9 |pages=4479–91 |year=2015 |pmid=26416282 |doi=10.4049/jimmunol.1501141 }} 3. ^{{cite journal|last1=Wilson|first1=AJ|last2=Maddox|first2=PH|last3=Jenkins|first3=D|title=CD1a and S100 antigen expression in skin Langerhans cells in patients with breast cancer.|journal=The Journal of Pathology|date=January 1991|volume=163|issue=1|pages=25–30|pmid=2002421|doi=10.1002/path.1711630106}} 4. ^{{cite journal |vauthors=Coppola D, Fu L, Nicosia SV, Kounelis S, Jones M |title=Prognostic significance of p53, bcl-2, vimentin, and S100 protein-positive Langerhans cells in endometrial carcinoma |journal=Human Pathology |volume=29 |issue=5 |pages=455–62 |year=1998 |pmid=9596268 |doi=10.1016/s0046-8177(98)90060-0}} 5. ^{{cite journal |vauthors=Shinzato M, Shamoto M, Hosokawa S, Kaneko C, Osada A, Shimizu M, Yoshida A |title=Differentiation of Langerhans cells from interdigitating cells using CD1a and S-100 protein antibodies |journal=Biotechnic & Histochemistry |volume=70 |issue=3 |pages=114–8 |year=1995 |pmid=7548432 |doi=10.3109/10520299509108327}} 6. ^{{cite journal |vauthors=Donato R |title=Intracellular and extracellular roles of S100 proteins |journal=Microscopy Research and Technique |volume=60 |issue=6 |pages=540–51 |year=2003 |pmid=12645002 |doi=10.1002/jemt.10296 }} 7. ^{{cite journal |vauthors=Wolf R, Howard OM, Dong HF, Voscopoulos C, Boeshans K, Winston J, Divi R, Gunsior M, Goldsmith P, Ahvazi B, Chavakis T, Oppenheim JJ, Yuspa SH |title=Chemotactic activity of S100A7 (Psoriasin) is mediated by the receptor for advanced glycation end products and potentiates inflammation with highly homologous but functionally distinct S100A15 |journal=Journal of Immunology |volume=181 |issue=2 |pages=1499–506 |year=2008 |pmid=18606705 |pmc=2435511 |doi=10.4049/jimmunol.181.2.1499 }} 8. ^{{cite journal |vauthors=Nonaka D, Chiriboga L, Rubin BP |title=Differential expression of S100 protein subtypes in malignant melanoma, and benign and malignant peripheral nerve sheath tumors |journal=Journal of Cutaneous Pathology |volume=35 |issue=11 |pages=1014–9 |year=2008 |pmid=18547346 |doi=10.1111/j.1600-0560.2007.00953.x }} 9. ^{{cite journal |vauthors=Wolf R, Ruzicka T, Yuspa SH | title = Novel S100A7 (psoriasin)/S100A15 (koebnerisin) subfamily: highly homologous but distinct in regulation and function | journal = Amino Acids | volume = 41| issue = 4| pages = 789–96|date=July 2010 | pmid = 20596736 | doi = 10.1007/s00726-010-0666-4 | url = | issn = }} 10. ^{{Cite journal|last=Penumutchu|first=Srinivasa R.|last2=Chou|first2=Ruey-Hwang|last3=Yu|first3=Chin|date=2014-08-01|title=Structural Insights into Calcium-Bound S100P and the V Domain of the RAGE Complex|url=http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0103947|journal=PLOS ONE|volume=9|issue=8|pages=e103947|doi=10.1371/journal.pone.0103947|issn=1932-6203|pmc=4118983|pmid=25084534}} 11. ^{{Cite journal|last=Penumutchu|first=Srinivasa R.|last2=Chou|first2=Ruey-Hwang|last3=Yu|first3=Chin|date=2014-10-17|title=Interaction between S100P and the anti-allergy drug cromolyn|journal=Biochemical and Biophysical Research Communications|volume=454|issue=3|pages=404–409|doi=10.1016/j.bbrc.2014.10.048|issn=1090-2104|pmid=25450399}} 12. ^{{Citation |author=Elsevier |authorlink=Elsevier |title=Dorland's Illustrated Medical Dictionary |publisher=Elsevier |url=http://dorlands.com/ |postscript=.}} Further reading
External links
2 : S100 proteins|Protein families |
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