Galacturan 1,4-alpha-galacturonidase

From Wikipedia, the free encyclopedia

In enzymology, a galacturan 1,4-alpha-galacturonidase (EC 3.2.1.67) is an enzyme that catalyzes the chemical reaction

(1,4-alpha-D-galacturonide)n + H₂O (1,4-alpha-D-galacturonide)n-1 + D-galacturonate

Thus, the two substrates of this enzyme are (1,4-alpha-D-galacturonide)n and H₂O, whereas its two products are (1,4-alpha-D-galacturonide)n-1 and D-galacturonate.

This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is poly(1,4-alpha-D-galacturonide) galacturonohydrolase. Other names in common use include exopolygalacturonase, poly(galacturonate) hydrolase, exo-D-galacturonase, exo-D-galacturonanase, and exopoly-D-galacturonase. This enzyme participates in pentose and glucuronate interconversions and starch and sucrose metabolism.

[edit] References

• IUBMB entry for 3.2.1.67
• BRENDA references for 3.2.1.67 (Recommended.)
• PubMed references for 3.2.1.67
• PubMed Central references for 3.2.1.67
• Google Scholar references for 3.2.1.67
• Hasegawa S, Nagel CW (1968). "Isolation of an oligogalacturonate hydrolase from a Bacillus specie". Arch. Biochem. Biophys. 124: 513–20. PMID 5661621. 

[edit] External links

The CAS registry number for this enzyme class is 9045-35-6.

• IUBMB entry for 3.2.1.67

• KEGG entry for 3.2.1.67

• BRENDA entry for 3.2.1.67

• NiceZyme view of 3.2.1.67

• EC2PDB: PDB structures for 3.2.1.67

• PRIAM entry for 3.2.1.67

• PUMA2 entry for 3.2.1.67

• IntEnz: Integrated Enzyme entry for 3.2.1.67

• MetaCyc entry for 3.2.1.67

• Atomic-resolution structures of enzymes belonging to this class

[edit] Gene Ontology (GO) codes

• EGO entry for GO code 0047911: galacturan 1,4-alpha-galacturonidase

• AMIGO entry for GO code 0047911: galacturan 1,4-alpha-galacturonidase