“Xyloglucan:xyloglucosyl transferase”的意思、由来-开放百科全书

词条

Xyloglucan:xyloglucosyl transferase

释义

Structural studies
References

{{enzyme
| Name = xyloglucan:xyloglucosyl transferase
| EC_number = 2.4.1.207
| CAS_number =
| IUBMB_EC_number = 2/4/1/207
| GO_code = 0016762
| image =
| width =
| caption =
}}

In enzymology, a xyloglucan:xyloglucosyl transferase ({{EC number|2.4.1.207}}) is an enzyme that catalyzes the chemical reaction in which a beta-(1,4) bond in the backbone of a xyloglucan in broken; the xyloglucanyl segment is then transferred to the O₄ of the non-reducing terminal glucose residue of either xyloglucan or an oligosaccharide thereof.^[1]

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is xyloglucan:xyloglucan xyloglucanotransferase. Other names in common use include endo-xyloglucan transferase, and xyloglucan endotransglycosylase.

Structural studies

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes {{PDB link|1UMZ}} and {{PDB link|1UN1}}.

References

1. ^{{cite journal|last=Thompson|first=James E.|author2=Fry, Stephen C. |year=2001|journal=The Plant Journal|volume=26|issue=1|pages=23–34|url=http://www.icmb.ed.ac.uk/research/institutes/plant/PDF/2001/Thompson-2001-23.pdf|doi=10.1046/j.1365-313x.2001.01005.x|pmid=11359607|title=Restructuring of wall-bound xyloglucan by transglycosylation in living plant cells.}}

{{cite journal | vauthors = Fry SC, Smith RC, Renwick KF, Martin DJ, Hodge SK, Matthews KJ | title = Xyloglucan endotransglycosylase, a new wall-loosening enzyme activity from plants | journal = Biochem. J. | volume = 282 | pages = 821–8 | pmid = 1554366 | pmc = 1130861 | issue = Pt 3 }}
{{cite journal | vauthors = Nishitani K, Tominaga R | year = 1992 | title = Endo-xyloglucan transferase, a novel class of glycosyltransferase that catalyzes transfer of a segment of xyloglucan molecule to another xyloglucan molecule | journal = J. Biol. Chem. | volume = 267 | pages = 21058–64 | pmid = 1400418 | issue = 29 }}
{{cite journal | vauthors = Foucher AL, McIntosh A, Douce G, Wastling J, Tait A, Turner CM | year = 2006 | title = A proteomic analysis of arsenical drug resistance in Trypanosoma brucei | journal = Proteomics | volume = 6 | pages = 2726–32 | pmid = 16526094 | doi = 10.1002/pmic.200500419 | issue = 9 }}
{{cite journal | vauthors = Lorences EP, Fry, SC | year = 1993 | title = Xyloglucan oligosaccharides with at least two alpha-D-xylose residues act as acceptor substrates for xyloglucan endotransglycosylase and promote the depolymerisation of xyloglucan | journal = Plant Physiol. | volume = 88 | pages = 105–112 | doi = 10.1111/j.1399-3054.1993.tb01767.x }}

2 : EC 2.4.1|Enzymes of known structure

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