1GQ8

Pectin methylesterase from Carrot

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1gq8a_	All beta proteins	Single-stranded right-handed beta-helix	Pectin lyase-like	Pectin methylesterase	Pectin methylesterase PemA	(Daucus carota ) [TaxId: 4039 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Pectin methylesterase	8026430	4002813	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Pectin lyase-like	8038809	3001746	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Pectinesterase	e1gq8A1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Pectin lyase-like (From Topology)	T: Pectin lyase-like	F: Pectinesterase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.160.20.10	Mainly Beta	3 Solenoid	Pectate Lyase C-like	Single-stranded right-handed beta-helix, Pectin lyase-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01095	Pectinesterase (Pectinesterase)	Pectinesterase	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PECTINESTERASE	pectinesterase activity hydrolase activity, acting on ester bonds carboxylic ester hydrolase activity hydrolase activity catalytic activity aspartyl esterase activity	cellular component organization cell wall modification cell wall organization or biogenesis cell wall organization cellular process cellular component organization or biogenesis external encapsulating structure organization carbohydrate metabolic process galacturonan metabolic process catabolic process pectin metabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process cellular component organization cell wall modification cell wall organization or biogenesis cell wall organization cellular process cellular component organization or biogenesis external encapsulating structure organization carbohydrate metabolic process galacturonan metabolic process catabolic process pectin metabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process pectin catabolic process polysaccharide metabolic process organic substance metabolic process polysaccharide catabolic process metabolic process macromolecule metabolic process organic substance catabolic process	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012334	Pectin lyase fold	Homologous Superfamily
A	IPR018040	Pectinesterase, Tyr active site	Active Site
A	IPR000070	Pectinesterase, catalytic	Domain
A	IPR011050	Pectin lyase fold/virulence factor	Homologous Superfamily
A	IPR033131	Pectinesterase, Asp active site	Active Site

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	PCA	Parent Component: GLN RESID: AA0031 PSI-MOD : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	pectinesterase M-CSA #681	Pectin methylesterases catalyse pectin deesterification by converting methyl-D-galactopyranosol residues of pectin to carboxylates and methanol. These enzymes have a role in plant cell wall metabolism.	Defined by 5 residues: GLN:A-113GLN:A-135ASP:A-136ASP:A-157ARG:A-225 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.1.1.11 (PDB Primary Data) Search M-CSA Motif + EC 3.1.1.11

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.