Pectin lyase

Pectin lyase

In enzymology, a pectin lyase (EC number|4.2.2.10) is an enzyme that catalyzes the chemical reaction

:Eliminative cleavage of (1->4)-alpha-D-galacturonan methyl ester to give oligosaccharides with 4-deoxy-6-O-methyl-alpha-D-galact-4-enuronosyl groups at their non-reducing ends

This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on polysaccharides. The systematic name of this enzyme class is (1->4)-6-O-methyl-alpha-D-galacturonan lyase. Other names in common use include pectin trans-eliminase, endo-pectin lyase, polymethylgalacturonic transeliminase, pectin methyltranseliminase, pectolyase, PL, PNL, and PMGL.

tructural studies

As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes PDB link|1IDJ, PDB link|1IDK, and PDB link|1QCX.

References

*
*
*
*

External links

::"The CAS registry number for this enzyme class is CAS registry|9033-35-6."

Gene Ontology (GO) codes


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • pectin — 1. Broad generic term for what are now called pectic substances or materials; specifically, a gelatinous substance, consisting largely of long chains of mostly d galacturonic acid units (typically α 1,4 linkages and sometimes present as methyl… …   Medical dictionary

  • Pectate lyase — In enzymology, a pectate lyase (EC number|4.2.2.2) is an enzyme that catalyzes the chemical reaction:Eliminative cleavage of (1 >4) alpha D galacturonan to give oligosaccharides with 4 deoxy alpha D galact 4 enuronosyl groups at their non… …   Wikipedia

  • Pectate disaccharide-lyase — In enzymology, a pectate disaccharide lyase (EC number|4.2.2.9) is an enzyme that catalyzes the chemical reaction:Eliminative cleavage of 4 (4 deoxy alpha D galact 4 enuronosyl) D galacturonate from the reducing end of pectate, i.e. de esterified …   Wikipedia

  • List of EC numbers (EC 4) — This list contains a list of EC numbers for the fourth group, EC 4, lyases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.EC 4.1: Carbon Carbon LyasesEC… …   Wikipedia

  • E440 — Pectine Les pectines (du grec ancien πηκτός / pêktós, « épaissi, caillé »), ou plus largement les substances pectiques, sont des polyosides, rattachées aux glucides. Ce sont des substances exclusivement d origine végétale. La pectine… …   Wikipédia en Français

  • Pectine — Les pectines (du grec ancien πηκτός / pêktós, « épaissi, caillé »), ou plus largement les substances pectiques, sont des polyosides, rattachées aux glucides. Ce sont des substances exclusivement d’origine végétale. La pectine est… …   Wikipédia en Français

  • pelB — The 18 residue N terminal leader sequence of pelB is commonly used in various vector constructs. The gene from which it comes, pelB, codes for pectin lyase B, one of the many virulence factors of Erwinia chrysanthemi, pectinases that degrade cell …   Dictionary of molecular biology

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”