Computer generated image of Polygalacturonase as found in Aspergillus aculeatus (1IA5) at pH 8.5[1]
Identifiers
EC no.
3.2.1.15
CAS no.
9032-75-1
Databases
IntEnz
IntEnz view
BRENDA
BRENDA entry
ExPASy
NiceZyme view
KEGG
KEGG entry
MetaCyc
metabolic pathway
PRIAM
profile
PDB structures
RCSB PDB PDBe PDBsum
Search
PMC
articles
PubMed
articles
NCBI
proteins
Endo-polygalacturonase (EC 3.2.1.15, pectin depolymerase, pectolase, pectin hydrolase, and poly-α-1,4-galacturonide glycanohydrolase; systematic name (1→4)-α-D-galacturonan glycanohydrolase (endo-cleaving)) is an enzyme that hydrolyzes the α-1,4 glycosidic bonds between galacturonic acid residues:
Polygalacturonan, whose major component is galacturonic acid,[2] is a significant carbohydrate component of the pectin network that comprises plant cell walls.[3] Therefore, the activity of the endogenous plant PGs works to soften and sweeten fruit during the ripening process. Similarly, phytopathogens use PGs as a means to weaken the pectin network, so that digestive enzymes can be excreted into the plant host to acquire nutrients.
^Cho SW, Lee S, Shin W (August 2001). "The X-ray structure of Aspergillus aculeatus polygalacturonase and a modeled structure of the polygalacturonase-octagalacturonate complex". Journal of Molecular Biology. 311 (4): 863–78. doi:10.1006/jmbi.2001.4919. PMID 11518536.
^"Medical Definition of Polygalacturonan". Lexic.us.
^Jones, T. M., Anderson, A. J., and Albersheim, P. (1972) Host–pathogen interactions IV, Studies on the polysaccharide-degrading enzymes secreted by Fusarium oxysporum f. sp. lycopersici, Physiol. Plant Pathol. 2, 153-166.
referred to as pectic enzymes, they include pectolyase, pectozyme, and polygalacturonase, one of the most studied and widely used[citation needed] commercial...
Polygalacturonase inhibitor proteins (PGIPs), also known as polygalacturonase-inhibiting proteins, are plant proteins capable of inhibiting the action...
copy of the tomato gene polygalacturonase was inserted into the tomato genome in the antisense direction. The polygalacturonase enzyme degrades pectin...
Flavr Savr contains two genes added by Calgene; a reversed antisense polygalacturonase gene which inhibits the production of a rotting enzyme and a gene...
El-Neshawy, S.; Nickerson, R. (1997). "Effects of Calcium Salts on Growth, Polygalacturonase Activity, and Infection of Peach Fruit by Monilinia fructicola". Plant...
(1 January 1994). "Commercialization of a tomato with an antisense polygalacturonase gene: The FLAVR SAVR™ tomato story". Euphytica. 79 (3): 293–97. doi:10...
with several known activities; polygalacturonase (EC 3.2.1.15); exo-polygalacturonase (EC 3.2.1.67); exo-polygalacturonase (EC 3.2.1.82); rhamnogalacturonase...
Columbia, Canada Prince George's County, Maryland, or PG County, U.S. Polygalacturonase, an enzyme Propylene glycol, an organic compound Prostaglandin, physiologically...
filamentous species in the genus Penicillium which produces several polygalacturonases, xanthoepocin, asperphenamate, verrucolone, phthalate and olnacin...
a soluble one by certain degrading enzymes. These enzymes include polygalacturonase. This means that the fruit will become less firm as the structure...
gene expression of cell wall-degrading enzymes such as cellulase and polygalacturonase are activated. However, this is not to say that ethylene directly...
into the body). These enzymes include amylase to hydrolyse starch, polygalacturonase to weaken the tough cell walls of plants, and proteinases to break...
they may contain enzymes, such as β-glucosidase, β-xylosidase, or polygalacturonase, which Saccharomyces yeast may not produce. Not all yeast associated...
is negative in the pectin degradation test and negative by PCR for polygalacturonase gene pehX. The name K. michiganensis comes from the United States'...
Pectolase may refer to one of two enzymes: Pectin lyase Polygalacturonase This set index page lists enzyme articles associated with the same name. If...
treatments are designed to inactivate enzymes (pectin methylesterase and polygalacturonase in fruit juices) and destroy spoilage microbes (yeast and lactobacillus)...
far, it has been established that short styles contain proteins, polygalacturonases, that are absent in long styles. This plant has uses in traditional...
enzymes such as protease, urease, ribonuclease, pectate lyase, and polygalacturonase are found in cultural media of R. oryzae. Besides producing a number...
produce pecticase. It produces polycalacturonase, but not isoenzymes of polygalacturonase, and it has increased activity in the presence of glucose. The species...
into the host plant. The saliva of the TPB contains an enzyme called polygalacturonase which degrades plant tissue and pectin in the plant cell wall allowing...
result of temporary inactivation of self-degradation enzymes like polygalacturonase and increased expression of enzymes associated with cell wall repair...
extraction of coconut oil involves the enzymatic action of alpha-amylase, polygalacturonases, and proteases on diluted coconut paste. Unlike virgin coconut oil...
genus Penicillium. It is known to produce various compounds including polygalacturonase, compactin, cyclopenin, cyclopenol, cyclopeptin, dehydrocompactin...
is very low in the head, but the enzyme is present in the foregut. Polygalacturonase activity is not observed in C. longicaudatum. A cellulose-rich diet...
function in cortex parenchyma. Tomato PG1beta, the beta-subunit of polygalacturonase isozyme 1 (PG1), which is expressed in ripening fruits. Cereal RAFTIN...
a variety of cellular processes, such as extracellular proteases, polygalacturonase, and the production of siderophores. Burkholderia cenocepacia is one...
Global Information