>From: bobby at wolf.Gsu.EDU (Bob Cherniak)
>Subject: xylose and arabinose
>Date: 13 Feb 1995 05:36:27 -0800
>>Information on the metabolism (anabolic and catabolic pathways) for
>the pentoses, arabinose and xylose, will be greatly appreciated.
There are examples in plants of Xyl and Ara containing glycoproteins,
and of course Xyl in glycosaminoglycans. You may be interested in the
donor for arabinosylation in Leishmania (GDP-alpha-D-arabinopyranose)
- see Schneider et al. J. Biol. Chem. 1994 vol. 269, pp. 18332-18337
>Does anyone know of an endoglycosidase that cleaves alpha 1->3 mannan.
I presume you mean an endoglycosidase that cleaves an alpha1,3Man
linkage? The only endomannosidase I know of that has been described
is the endomannosidase in N-linked oligosaccharide biosynthesis (the
alternative pathway for removal of Glc studied by Spiro) which removes
Glc-Man - but that is an alpha1,2Man linkage, if I'm remembering correctly.
Iain
---------------------------------------------------------------
Iain Wilson Institut fuer Chemie
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