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'''Exo-1,4-beta-D-glucosaminidase''' ({{EC number|3.2.1.165}}, ''CsxA'', ''GlcNase'', ''exochitosanase'', ''GlmA'', ''exo-beta-D-glucosaminidase'', ''chitosan exo-1,4-beta-D-glucosaminidase'') is an [[enzyme]] with [[List of enzymes|systematic name]] ''chitosan exo-(1->4)-beta-D-glucosaminidase''.<ref>{{cite journal | title = Purification and characterization of an exo-&beta;-D-glucosaminidase, a novel type of enzyme, from ''Nocardia orientalis'' |author = Nanjo, F., Katsumi, R. and Sakai, K. |journal = J. Biol. Chem. |year = 1990 |volume = 265 |pages = 10088–10094 |pmid = 2351651}}</ref><ref>{{cite journal | title = Purification and characterization of exo-&beta;-D-glucosaminidase from a cellulolytic fungus, ''Trichoderma reesei'' PC-3-7 |author = Nogawa, M., Takahashi, H., Kashiwagi, A., Ohshima, K., Okada, H. and Morikawa, Y. |journal = Appl. Environ. Microbiol. |year = 1998 |volume = 64 |pages = 890–895 |pmid = 16349528}}</ref><ref>{{cite journal | title = Exo-&beta;-D-glucosaminidase from ''Amycolatopsis orientalis'': catalytic residues, sugar recognition specificity, kinetics, and synergism |author = Fukamizo, T., Fleury, A., C&ocirc;t&eacute;, N., Mitsutomi, M. and Brzezinski, R. |journal = Glycobiology |year = 2006 |volume = 16 |pages = 1064–1072 |pmid = 16877749 |doi=10.1093/glycob/cwl026}}</ref><ref>{{cite journal | title = Two exo-&beta;-D-glucosaminidases/exochitosanases from actinomycetes define a new subfamily within family 2 of glycoside hydrolases |author = C&ocirc;t&eacute;, N., Fleury, A., Dumont-Blanchette, E., Fukamizo, T., Mitsutomi, M. and Brzezinski, R. |journal = Biochem. J. |year = 2006 |volume = 394 |pages = 675–686 |pmid = 16316314 |doi=10.1042/bj20051436}}</ref><ref>{{cite journal | title = Cloning and heterologous expression of the exo-&beta;-D-glucosaminidase-encoding gene (''gls93'') from a filamentous fungus, ''Trichoderma reesei'' PC-3-7 |author = Ike, M., Isami, K., Tanabe, Y., Nogawa, M., Ogasawara, W., Okada, H. and Morikawa, Y. |journal = Appl. Microbiol. Biotechnol. |year = 2006 |volume = 72 |pages = 687–695 |pmid = 16636831 |doi=10.1007/s00253-006-0320-y}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]
'''Exo-1,4-beta-D-glucosaminidase''' ({{EC number|3.2.1.165}}, ''CsxA'', ''GlcNase'', ''exochitosanase'', ''GlmA'', ''exo-beta-D-glucosaminidase'', ''chitosan exo-1,4-beta-D-glucosaminidase'') is an [[enzyme]] with [[List of enzymes|systematic name]] ''chitosan exo-(1->4)-beta-D-glucosaminidase''.<ref>{{cite journal | title = Purification and characterization of an exo-&beta;-D-glucosaminidase, a novel type of enzyme, from ''Nocardia orientalis'' |author1 = Nanjo, F. |author2 =Katsumi, R. |author3 =Sakai, K. |journal = J. Biol. Chem. |year = 1990 |volume = 265 |pages = 10088–10094 |pmid = 2351651}}</ref><ref>{{cite journal | title = Purification and characterization of exo-&beta;-D-glucosaminidase from a cellulolytic fungus, ''Trichoderma reesei'' PC-3-7 |author1 = Nogawa, M. |author2 =Takahashi, H. |author3 =Kashiwagi, A. |author4 =Ohshima, K. |author5 =Okada, H. |author6 =Morikawa, Y. | journal = Appl. Environ. Microbiol. |year = 1998 |volume = 64 |pages = 890–895 |pmid = 16349528}}</ref><ref>{{cite journal | title = Exo-&beta;-D-glucosaminidase from ''Amycolatopsis orientalis'': catalytic residues, sugar recognition specificity, kinetics, and synergism |author1 = Fukamizo, T. |author2 =Fleury, A. |author3 =C&ocirc;t&eacute;, N. |author4 =Mitsutomi, M. |author5 =Brzezinski, R. |journal = Glycobiology |year = 2006 |volume = 16 |pages = 1064–1072 |pmid = 16877749 |doi=10.1093/glycob/cwl026}}</ref><ref>{{cite journal | title = Two exo-&beta;-D-glucosaminidases/exochitosanases from actinomycetes define a new subfamily within family 2 of glycoside hydrolases |author1 = C&ocirc;t&eacute;, N. |author2 =Fleury, A. |author3 =Dumont-Blanchette, E. |author4 =Fukamizo, T. |author5 =Mitsutomi, M. |author6 =Brzezinski, R. | journal = Biochem. J. |year = 2006 |volume = 394 |pages = 675–686 |pmid = 16316314 |doi=10.1042/bj20051436}}</ref><ref>{{cite journal | title = Cloning and heterologous expression of the exo-&beta;-D-glucosaminidase-encoding gene (''gls93'') from a filamentous fungus, ''Trichoderma reesei'' PC-3-7 |author1 = Ike, M. |author2 =Isami, K. |author3 =Tanabe, Y. |author4 =Nogawa, M. |author5 =Ogasawara, W. |author6 =Okada, H. |author7 =Morikawa, Y. | journal = Appl. Microbiol. Biotechnol. |year = 2006 |volume = 72 |pages = 687–695 |pmid = 16636831 |doi=10.1007/s00253-006-0320-y}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]


: [[Hydrolysis]] of [[chitosan]] or chitosan oligosaccharides to remove successive D-[[glucosamine]] residues from the non-reducing termini
: [[Hydrolysis]] of [[chitosan]] or chitosan oligosaccharides to remove successive D-[[glucosamine]] residues from the non-reducing termini

Revision as of 00:19, 19 May 2016

Exo-1,4-beta-D-glucosaminidase
Identifiers
EC no.3.2.1.165
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins

Exo-1,4-beta-D-glucosaminidase (EC 3.2.1.165, CsxA, GlcNase, exochitosanase, GlmA, exo-beta-D-glucosaminidase, chitosan exo-1,4-beta-D-glucosaminidase) is an enzyme with systematic name chitosan exo-(1->4)-beta-D-glucosaminidase.[1][2][3][4][5] This enzyme catalyses the following chemical reaction

Hydrolysis of chitosan or chitosan oligosaccharides to remove successive D-glucosamine residues from the non-reducing termini

Chitosan is a partially or totally N-deacetylated chitin derivative that is found in the cell walls of some phytopathogenic fungi .

References

  1. ^ Nanjo, F.; Katsumi, R.; Sakai, K. (1990). "Purification and characterization of an exo-β-D-glucosaminidase, a novel type of enzyme, from Nocardia orientalis". J. Biol. Chem. 265: 10088–10094. PMID 2351651.
  2. ^ Nogawa, M.; Takahashi, H.; Kashiwagi, A.; Ohshima, K.; Okada, H.; Morikawa, Y. (1998). "Purification and characterization of exo-β-D-glucosaminidase from a cellulolytic fungus, Trichoderma reesei PC-3-7". Appl. Environ. Microbiol. 64: 890–895. PMID 16349528.
  3. ^ Fukamizo, T.; Fleury, A.; Côté, N.; Mitsutomi, M.; Brzezinski, R. (2006). "Exo-β-D-glucosaminidase from Amycolatopsis orientalis: catalytic residues, sugar recognition specificity, kinetics, and synergism". Glycobiology. 16: 1064–1072. doi:10.1093/glycob/cwl026. PMID 16877749.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  4. ^ Côté, N.; Fleury, A.; Dumont-Blanchette, E.; Fukamizo, T.; Mitsutomi, M.; Brzezinski, R. (2006). "Two exo-β-D-glucosaminidases/exochitosanases from actinomycetes define a new subfamily within family 2 of glycoside hydrolases". Biochem. J. 394: 675–686. doi:10.1042/bj20051436. PMID 16316314.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. ^ Ike, M.; Isami, K.; Tanabe, Y.; Nogawa, M.; Ogasawara, W.; Okada, H.; Morikawa, Y. (2006). "Cloning and heterologous expression of the exo-β-D-glucosaminidase-encoding gene (gls93) from a filamentous fungus, Trichoderma reesei PC-3-7". Appl. Microbiol. Biotechnol. 72: 687–695. doi:10.1007/s00253-006-0320-y. PMID 16636831.
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