6GMG

Structure of a glutamine donor mimicking inhibitory peptide shaped by the catalytic cleft of microbial transglutaminase

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Microbial transglutaminase	8101468	4002489	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Cysteine proteinases	8101469	3001808	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Cysteine proteinases	8101469	3001808	SCOP2B (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	Transglut_prok	e6gmgA1	A: a+b complex topology	X: Cysteine proteinases-like	H: Cysteine proteinases (From Topology)	T: Cysteine proteinases	F: Transglut_prok	ECOD (1.6)
B	Transglut_prok	e6gmgB1	A: a+b complex topology	X: Cysteine proteinases-like	H: Cysteine proteinases (From Topology)	T: Cysteine proteinases	F: Transglut_prok	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1360.10	Alpha Beta	Alpha-Beta Complex	Microbial transglutaminase. Chain: a	Protein-glutamine gamma-glutamyltransferase	CATH (4.3.0)
B	3.90.1360.10	Alpha Beta	Alpha-Beta Complex	Microbial transglutaminase. Chain: a	Protein-glutamine gamma-glutamyltransferase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF09017	Microbial transglutaminase (Transglut_prok)	Microbial transglutaminase	Microbial transglutaminase (MTG) catalyses an acyl transfer reaction by means of a Cys-Asp diad mechanism, in which the gamma-carboxyamide groups of peptide-bound glutamine residues act as the acyl donors. The MTG molecule forms a single, compact dom ...	Microbial transglutaminase (MTG) catalyses an acyl transfer reaction by means of a Cys-Asp diad mechanism, in which the gamma-carboxyamide groups of peptide-bound glutamine residues act as the acyl donors. The MTG molecule forms a single, compact domain belonging to the alpha+beta folding class, containing 11 alpha-helices and 8 beta-strands. The alpha-helices and the beta-strands are concentrated mainly at the amino and carboxyl ends of the polypeptide, respectively. These secondary structures are arranged so that a beta-sheet is surrounded by alpha-helices, which are clustered into three regions [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PROTEIN-GLUTAMINE GAMMA-GLUTAMYLTRANSFERASE	aminoacyltransferase activity protein-glutamine gamma-glutamyltransferase activity catalytic activity, acting on a protein acyltransferase activity transferase activity catalytic activity	-	-
C, D	Papain inhibitor	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity cysteine-type endopeptidase inhibitor activity	negative regulation of hydrolase activity negative regulation of proteolysis regulation of cellular process regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of primary metabolic process negative regulation of peptidase activity regulation of proteolysis proteolysis negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process negative regulation of hydrolase activity negative regulation of proteolysis regulation of cellular process regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of primary metabolic process negative regulation of peptidase activity regulation of proteolysis proteolysis negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biological process regulation of protein metabolic process negative regulation of metabolic process biological regulation negative regulation of molecular function regulation of peptidase activity primary metabolic process regulation of macromolecule metabolic process regulation of molecular function regulation of hydrolase activity metabolic process cellular process macromolecule metabolic process regulation of metabolic process	cellular anatomical structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A, B	IPR037084	Protein-glutamine gamma-glutamyltransferase superfamily	Homologous Superfamily
A, B	IPR015107	Protein-glutamine gamma-glutamyltransferase	Family
C, D	IPR051477	Plant Cell Wall Expansin	Family
C, D	IPR048197	Papain inhibitor	Family
C, D	IPR036908	RlpA-like domain superfamily	Homologous Superfamily
C, D	IPR009009	RlpA-like protein, double-psi beta-barrel domain	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C, D	OAS	Parent Component: SER RESID: AA0364 PSI-MOD : O-acetyl-L-serine MOD:00369 , N,O-diacetylated L-serine MOD:00648

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.