KEGG   ENZYME: 3.2.1.202Help
Entry
EC 3.2.1.202                Enzyme                                 

Name
endo-chitodextinase;
endo I (gene name);
chitodextrinase (ambiguous);
endolytic chitodextrinase;
periplasmic chitodextrinase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
(1->4)-2-acetamido-2-deoxy-beta-D-glucan diacetylchitobiohydrolase (endo-cleaving)
Reaction(IUBMB)
Hydrolysis of chitodextrins, releasing N,N'-diacetylchitobiose and small amounts of N,N',N''-triacetylchitotriose.
Comment
The enzyme, characterized from the bacterium Vibrio furnissii, is an endo-cleaving chitodextrinase that participates in the the chitin catabolic pathway found in members of the Vibrionaceae. Unlike EC 3.2.1.14, chitinase, it has no activity on chitin. The smallest substrate is a tetrasaccharide, and the final products are N,N'-diacetylchitobiose and small amounts of N,N',N''-triacetylchitotriose. cf. EC 3.2.1.200, exo-chitinase (non-reducing end), and EC 3.2.1.201, exo-chitinase (reducing end).
History
EC 3.2.1.202 created 2017
Orthology
K21606  endo-chitodextinase
Genes
PSHI: SAMEA2665130_0659(endo_I)
VCH: VC1073 VCA0700
VCF: IR04_03000 IR04_10700
VCS: MS6_0865 MS6_A0745
VCE: Vch1786_I0577 Vch1786_II0384
VCQ: EN18_01860 EN18_08695
VCJ: VCD_000618 VCD_003268
VCI: O3Y_04990 O3Y_16808
VCO: VC0395_0638 VC0395_A0592
VCR: VC395_A0612
VCX: VAA049_2250(endo_I) VAA049_2664
VCZ: VAB027_1756 VAB027_476(endo_I)
VVU: VV2_0213
VVY: VVA0720
VPA: VPA0832
VAG: N646_4225
VSP: VS_II0546
VAN: VAA_01569
VFI: VF_0986
PPR: PBPRA2199(CHIA)
SBL: Sbal_2491
SWD: Swoo_2719
SVO: SVI_1805
SPSW: Sps_00529
PSM: PSM_B0252
PSEO: OM33_12525
PSPO: PSPO_a2021
PSEN: PNC201_19570(endo_I2)
SDE: Sde_3982(cdx18A)
SAGA: M5M_02790
HCH: HCH_01137
AHA: AHA_3440
ASA: ASA_0873(cdxA)
AVR: B565_0857
AMED: B224_0671
SALI: L593_04110
 » show all
Taxonomy
Reference
1  [PMID:1761533]
  Authors
Bassler BL, Yu C, Lee YC, Roseman S
  Title
Chitin utilization by marine bacteria. Degradation and catabolism of chitin oligosaccharides by Vibrio furnissii.
  Journal
J Biol Chem 266:24276-86 (1991)
Reference
2  [PMID:8969204]
  Authors
Keyhani NO, Roseman S
  Title
The chitin catabolic cascade in the marine bacterium Vibrio furnissii. Molecular  cloning, isolation, and characterization of a periplasmic chitodextrinase.
  Journal
J Biol Chem 271:33414-24 (1996)
DOI:10.1074/jbc.271.52.33414
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 3.2.1.202
IUBMB Enzyme Nomenclature: 3.2.1.202
ExPASy - ENZYME nomenclature database: 3.2.1.202
BRENDA, the Enzyme Database: 3.2.1.202

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