IUBMB Enzyme Nomenclature


Accepted name: pectate disaccharide-lyase

Reaction: (1,4-α-D-galacturonosyl)n = (1,4-α-D-galacturonosyl)n-2 + 4-(4-deoxy-α-D-galact-4-enuronosyl)-D-galacturonate

For diagram click here.

Other name(s): pectate exo-lyase; exopectic acid transeliminase; exopectate lyase; exopolygalacturonic acid-trans-eliminase; PATE; exo-PATE; exo-PGL; exopolygalacturonate lyase (ambiguous); pelW (gene name); pelX (gene name)

Systematic name: (1→4)-α-D-galacturonan reducing-end-disaccharide-lyase

Comments: The enzyme catalyses the eliminative cleavage of an unsaturated disaccharide from the reducing end of homogalacturonan (the backbone of smooth regions of pectate, also known as de-esterified pectin).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 37290-87-2


1. Macmillan, J.D. and Vaughn, R.H. Purification and properties of a polygalacturonic acid-trans-eliminase produced by Clostridium multifermentans. Biochemistry 3 (1964) 564-572. [PMID: 14188174]

2. Shevchik, V.E., Kester, H.C., Benen, J.A., Visser, J., Robert-Baudouy, J. and Hugouvieux-Cotte-Pattat, N. Characterization of the exopolygalacturonate lyase PelX of Erwinia chrysanthemi 3937. J. Bacteriol. 181 (1999) 1652–1663. [PMID: 10049400]

3. Shevchik, V.E., Condemine, G., Robert-Baudouy, J. and Hugouvieux-Cotte-Pattat, N. The exopolygalacturonate lyase PelW and the oligogalacturonate lyase Ogl, two cytoplasmic enzymes of pectin catabolism in Erwinia chrysanthemi 3937. J. Bacteriol. 181 (1999) 3912–3919. [PMID: 10383957]

[EC created 1972, modified 2002]

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