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2.4.1.319: beta-1,4-mannooligosaccharide phosphorylase

This is an abbreviated version!
For detailed information about beta-1,4-mannooligosaccharide phosphorylase, go to the full flat file.

Reaction

[(1->4)-beta-D-mannosyl]n
+
phosphate
=
[(1->4)-beta-D-mannosyl]n-1
 +
alpha-D-mannose 1-phosphate

Synonyms

MP2, RaMp2, Rumal_0099

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.319 beta-1,4-mannooligosaccharide phosphorylase

Substrates Products

Substrates Products on EC 2.4.1.319 - beta-1,4-mannooligosaccharide phosphorylase

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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
4-O-beta-D-mannosyl-D-glucose + phosphate
D-glucose + alpha-D-mannosyl 1-phosphate
show the reaction diagram
-
-
-
?
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + alpha-D-mannose 1-phosphate
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + phosphate
show the reaction diagram
-
-
-
r
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + alpha-D-mannose 1-phosphate
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + phosphate
show the reaction diagram
-
-
-
r
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + phosphate
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
r
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + alpha-D-mannose 1-phosphate
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + phosphate
show the reaction diagram
best substrate for the synthetic reaction
-
-
r
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + phosphate
beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
r
beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + alpha-D-mannose 1-phosphate
beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + phosphate
show the reaction diagram
-
-
-
r
beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man + phosphate
beta-D-mannopyranosyl-(1->4)-D-mannopyranose + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
r
beta-D-mannopyranosyl-(1->4)-beta-D-mannopyranosyl-(1->4)-D-mannopyranose + phosphate
beta-D-mannopyranosyl-(1->4)-D-mannopyranose + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
r
beta-D-mannopyranosyl-(1->4)-D-mannopyranose + alpha-D-mannose 1-phosphate
beta-D-mannopyranosyl-(1->4)-beta-D-mannopyranosyl-(1->4)-D-mannopyranose + phosphate
show the reaction diagram
-
-
-
r
beta-D-mannopyranosyl-(1->4)-D-mannopyranose + phosphate
D-mannose + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
r
[(1->4)-beta-D-mannosyl]2 + alpha-D-mannose 1-phosphate
[(1->4)-beta-D-mannosyl]3 + phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]2 + phosphate
D-mannose + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]3 + alpha-D-mannose 1-phosphate
[(1->4)-beta-D-mannosyl]4 + phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]3 + phosphate
[(1->4)-beta-D-mannosyl]2 + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]4 + alpha-D-mannose 1-phosphate
[(1->4)-beta-D-mannosyl]5 + phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]4 + phosphate
[(1->4)-beta-D-mannosyl]3 + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]5 + alpha-D-mannose 1-phosphate
[(1->4)-beta-D-mannosyl]6 + phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]5 + phosphate
[(1->4)-beta-D-mannosyl]4 + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]6 + alpha-D-mannose 1-phosphate
[(1->4)-beta-D-mannosyl]7 + phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]6 + phosphate
[(1->4)-beta-D-mannosyl]5 + alpha-D-mannose 1-phosphate
show the reaction diagram
-
-
-
?
[(1->4)-beta-D-mannosyl]n + phosphate
[(1->4)-beta-D-mannosyl]n-1 + alpha-D-mannose 1-phosphate
show the reaction diagram
[(1->4)-beta-D-mannosyl]n-1 + alpha-D-mannose 1-phosphate
[(1->4)-beta-D-mannosyl]n + phosphate
show the reaction diagram
the enzyme catalyses the reversible phosphorolysis of beta-1,4-mannooligosaccharide with a minimum size of three monomers. It acts on D-glucose derivatives at the C2- and C3-positions, including deoxy- and deoxyfluoro-analogues and epimers, but not on those substituted at the C6-position. It shows high synthetic activity toward the following oligosaccharides: beta-linked glucobioses, maltose, N,N'-diacetylchitobiose, and beta-1,4-mannooligosaccharides. Particularly, beta-1,4-mannooligosaccharides serve as significantly better acceptor substrates for the enzyme than D-glucose. In the phosphorolytic reactions, RaMP2 has weak activity toward beta-1,4-mannobiose but efficiently degrades beta-1,4-mannooligosaccharides longer than beta-1,4-mannobiose. It is thought to catalyze the phosphorolysis of beta-1,4-mannooligosaccharides longer than beta-1,4-mannobiose to produce alpha-D-mannose 1-phosphate and beta-1,4-mannobiose
-
-
r
additional information
?
-
The enzyme also catalyzes the reaction of EC 2.4.1.281, 4-O-beta-D-mannosyl-D-glucose phosphorylase
-
-
?