KEGG   ENZYME: 4.2.2.24Help
Entry
EC 4.2.2.24                 Enzyme                                 

Name
rhamnogalacturonan exolyase;
YesX
Class
Lyases;
Carbon-oxygen lyases;
Acting on polysaccharides
BRITE hierarchy
Sysname
alpha-L-rhamnopyranosyl-(1->4)-alpha-D-galactopyranosyluronate exolyase
Reaction(IUBMB)
Exotype eliminative cleavage of alpha-L-rhamnopyranosyl-(1->4)-alpha-D-galactopyranosyluronic acid bonds of rhamnogalacturonan I oligosacharides containing alpha-L-rhamnopyranose at the reducing end and 4-deoxy-4,5-unsaturated D-galactopyranosyluronic acid at the non-reducing end. The products are the disaccharide 2-O-(4-deoxy-beta-L-threo-hex-4-enopyranuronosyl)-alpha-L-rhamnopyranose and the shortened rhamnogalacturonan oligosaccharide containing one 4-deoxy-4,5-unsaturated D-galactopyranosyluronic acid at the non-reducing end.
Comment
The enzyme is part of the degradation system for rhamnogalacturonan I in Bacillus subtilis strain 168.
History
EC 4.2.2.24 created 2011
Orthology
K18198  
rhamnogalacturonan exolyase
Genes
BSU: 
BSU07060(yesX)
BSR: 
BSL: 
BSH: 
BSY: 
BSUT: 
BSUL: 
BSUS: 
BSS: 
BST: 
BSN: 
BSQ: 
BSX: 
BSP: 
BLI: 
BL03783(yesX)
BLD: 
BLi01379(yesX)
BLH: 
BAE: 
BATR: 
BJS: 
BACY: 
BACL: 
 » show all
Taxonomy
Reference
1  [PMID:19193638]
  Authors
Ochiai A, Itoh T, Mikami B, Hashimoto W, Murata K
  Title
Structural determinants responsible for substrate recognition and mode of action  in family 11 polysaccharide lyases.
  Journal
J. Biol. Chem. 284 (2009) 10181-9.
Reference
2  [PMID:17449691]
  Authors
Ochiai A, Itoh T, Kawamata A, Hashimoto W, Murata K
  Title
Plant cell wall degradation by saprophytic Bacillus subtilis strains: gene clusters responsible for rhamnogalacturonan depolymerization.
  Journal
Appl. Environ. Microbiol. 73 (2007) 3803-13.
  Sequence
[bsu:BSU07060]
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 

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