Parent Class:

EC-Numbers → 2 -- Transferases → 2.4 -- Glycosyltransferases → 2.4.1 -- Hexosyltransferases

Synonyms: D-galactosyl-β1→4-L-rhamnose phosphorylase, GalRhaP

Systematic Name: β-D-galactosyl-(1→4)-L-rhamnose:phosphate 1-α-D-galactosyltransferase

Unification Links: BRENDA:2.4.1.247, ENZYME:2.4.1.247, IUBMB-ExplorEnz:2.4.1.247

Reaction:
β-D-galactosyl-(1->4)-L-rhamnose + phosphate ↔ L-rhamnopyranose + α-D-galactose 1-phosphate

Enzymes and Genes:
β-D-galactosyl-(1->4)-L-rhamnose phosphorylase: Cphy_1920 ( Lachnoclostridium phytofermentans )

Summary:
The enzyme from Lachnoclostridium phytofermentans is also active towards towards β-D-galactosyl derivatives of L-mannose, β-L-lyxopyranose, D-glucose, 2-deoxy-D-glucose, and D-galactose, in this order. Differs from 1,3-β-galactosyl-N-acetylhexosamine phosphorylase ( EC 2.4.1.211) in being active towards α-L-rhamnopyranose and inactive towards N-acetyl hexosamine derivatives.

Citations: [Nakajima09]

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References

Nakajima09: Nakajima M, Nishimoto M, Kitaoka M (2009). "Characterization of three {beta}-galactoside phosphorylases from Clostridium phytofermentans: discovery of d-galactosyl-{beta}1->4-l-rhamnose phosphorylase." J Biol Chem 284(29);19220-7. PMID: 19491100

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Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 46(D1):D633-D639 2018
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