1W74

X-ray structure of peptidyl-prolyl cis-trans isomerase A, PpiA, Rv0009, from Mycobacterium tuberculosis.

Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species
A	d1w74a_	All beta proteins	Cyclophilin-like	Cyclophilin-like	Cyclophilin (peptidylprolyl isomerase)	Peptidyl-prolyl cis-trans isomerase A, PpiA	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ]
B	d1w74b_	All beta proteins	Cyclophilin-like	Cyclophilin-like	Cyclophilin (peptidylprolyl isomerase)	Peptidyl-prolyl cis-trans isomerase A, PpiA	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ]

Domain Annotation: CATH CATH Database (version 4.2.0) Homepage

Chain	Domain	Class	Architecture	Topology	Homology
A	2.40.100.10	Mainly Beta	Beta Barrel	Cyclophilin	Cyclophilin-like
B	2.40.100.10	Mainly Beta	Beta Barrel	Cyclophilin	Cyclophilin-like

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A, B	PF00160	Cyclophilin type peptidyl-prolyl cis-trans isomerase/CLD (Pro_isomerase)	Cyclophilin type peptidyl-prolyl cis-trans isomerase/CLD	The peptidyl-prolyl cis-trans isomerases, also known as cyclophilins, share this domain of about 109 amino acids. Cyclophilins have been found in all organisms studied so far and catalyse peptidyl-prolyl isomerisation during which the peptide bond pr ...	The peptidyl-prolyl cis-trans isomerases, also known as cyclophilins, share this domain of about 109 amino acids. Cyclophilins have been found in all organisms studied so far and catalyse peptidyl-prolyl isomerisation during which the peptide bond preceding proline (the peptidyl-prolyl bond) is stabilised in the cis conformation. Mammalian cyclophilin A (CypA) is a major cellular target for the immunosuppressive drug cyclosporin A (CsA). Other roles for cyclophilins may include chaperone and cell signalling function [1].	Domain

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PEPTIDYL-PROLYL CIS-TRANS ISOMERASE A	peptidyl-prolyl cis-trans isomerase activity catalytic activity isomerase activity cis-trans isomerase activity catalytic activity, acting on a protein	response to inorganic substance response to metal ion response to iron ion response to chemical response to stimulus	cell wall external encapsulating structure cell periphery cellular anatomical entity intracellular anatomical structure cytoplasm cytosol extracellular region plasma membrane membrane

RCSB PDB is 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.