Β-マンノシダーゼ
From Wikipedia, the free encyclopedia
β-マンノシダーゼ(Beta-Mannosidase、EC 3.2.1.25)は、β-D-マンノシドの非還元末端からβ-D-マンノースを切り出す酵素である。系統名は、β-D-マンノシド マンノヒドロラーゼ(beta-D-mannoside mannohydrolase)。である。マンナナーゼ(mannanase)、マンナーゼ(mannase)等とも言う。ヒトでは、MANBA遺伝子がコードする[1][2][3][4][5][6]。
この遺伝子は、GHファミリー2の酵素をコードする。コードされた蛋白質はリソソームに局在し、ここで、N-結合オリゴ糖の異化経路の最後のエキソグリコシダーゼとして働く。この遺伝子の変異は、幅広い神経障害を引き起こすリソソーム蓄積症であるβ-マンノシドーソスを引き起こす[1]。
- 1 2 “Entrez Gene: mannosidase”. 2013年8月17日閲覧。
- ↑ Chen H, Leipprandt JR, Traviss CE, Sopher BL, Jones MZ, Cavanagh KT, Friderici KH (February 1995). “Molecular cloning and characterization of bovine beta-mannosidase”. J. Biol. Chem. 270 (8): 3841–8. doi:10.1074/jbc.270.8.3841. PMID 7876128.
- ↑ Adams, M., Richtmyer, N.K. and Hudson, C.S. (1943). “Some enzymes present in highly purified invertase preparations; a contribution to the study of fructofuranosidases, galactosidases, glucosidases and mannosidases”. J. Am. Chem. Soc. 65 (7): 1369–1380. doi:10.1021/ja01247a029.
- ↑ Bartholomew, B.A. and Perry, A.L. (1973). “The properties of synovial fluid β-mannosidase activity”. Biochim. Biophys. Acta 315 (1): 123–127. doi:10.1016/0005-2744(73)90136-8. PMID 4743897.
- ↑ Deuel, H., Lewuenberger, R. and Huber, G. (1950). “Über den enzymatischen Abbau von Carubin, dem Galaktomannan aus Ceratonia siliqua L”. Helv. Chim. Acta 33 (4): 942–946. doi:10.1002/hlca.19500330424.
- ↑ Hylin, J.W. and Sawai, K. (1964). “The enzymatic hydrolysis of Leucaena glauca galactomannan. Isolation of crystalline galactomannan depolymerase”. J. Biol. Chem. 239: 990–992. PMID 14165949.
関連文献
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