主要鹼性蛋白
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主要鹼性蛋白(英語:Major basic protein,MBP),全稱為嗜曙紅顆粒白血球主要鹼性蛋白(英語:Eosinophil Major basic protein),也稱為蛋白多糖2(Proteoglycan 2,PRG2),是一種由人類基因PRG2編碼的蛋白質[5]。
MBP在結構上類似於凝集素(糖結合蛋白),特別是與C-型凝集素在摺疊上相似。但與C-型凝集素不同(C-型凝集素在鈣的存在下會結合各種碳水化合物),MBP既不與鈣結合也不與這些糖類結合,而是識別並結合硫酸乙酰肝素(heparan sulfate)。MBP的兩種晶體結構已被測定。[6][7]
相互作用
主要鹼性蛋白已知可與妊娠相關血漿蛋白A發生蛋白質交互作用。[8][9][10]
參考文獻
- ^ 1.0 1.1 1.2 GRCh38: Ensembl release 89: ENSG00000186652 - Ensembl, May 2017
- ^ 2.0 2.1 2.2 GRCm38: Ensembl release 89: ENSMUSG00000027073 - Ensembl, May 2017
- ^ Human PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ Mouse PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ Entrez Gene: PRG2 proteoglycan 2, bone marrow (natural killer cell activator, eosinophil granule major basic protein). (原始內容存檔於2008-11-02).
- ^ PDB 1h8u; Swaminathan GJ, Weaver AJ, Loegering DA, Checkel JL, Leonidas DD, Gleich GJ, Acharya KR. Crystal structure of the eosinophil major basic protein at 1.8 A. An atypical lectin with a paradigm shift in specificity. J. Biol. Chem. July 2001, 276 (28): 26197–26203. PMID 11319227. doi:10.1074/jbc.M100848200.
- ^ PDB 2brs; Swaminathan GJ, Myszka DG, Katsamba PS, Ohnuki LE, Gleich GJ, Acharya KR. Eosinophil-granule major basic protein, a C-type lectin, binds heparin. Biochemistry. November 2005, 44 (43): 14152–14158. PMID 16245931. doi:10.1021/bi051112b.
- ^ Overgaard, M T; Haaning J; Boldt H B; Olsen I M; Laursen L S; Christiansen M; Gleich G J; Sottrup-Jensen L; Conover C A; Oxvig C. Expression of recombinant human pregnancy-associated plasma protein-A and identification of the proform of eosinophil major basic protein as its physiological inhibitor. J. Biol. Chem. (UNITED STATES). October 2000, 275 (40): 31128–31133. ISSN 0021-9258. PMID 10913121. doi:10.1074/jbc.M001384200.
- ^ Overgaard MT, Sorensen ES, Stachowiak D, Boldt HB, Kristensen L, Sottrup-Jensen L, Oxvig C. Complex of pregnancy-associated plasma protein-A and the proform of eosinophil major basic protein. Disulfide structure and carbohydrate attachment. J. Biol. Chem. (United States). January 2003, 278 (4): 2106–2117. ISSN 0021-9258. PMID 12421832. doi:10.1074/jbc.M208777200.
- ^ Oxvig, C; Sand O; Kristensen T; Gleich G J; Sottrup-Jensen L. Circulating human pregnancy-associated plasma protein-A is disulfide-bridged to the proform of eosinophil major basic protein. J. Biol. Chem. (UNITED STATES). June 1993, 268 (17): 12243–6. ISSN 0021-9258. PMID 7685339.
外部連結
延伸閱讀
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