1AUG | pdb_00001aug

CRYSTAL STRUCTURE OF THE PYROGLUTAMYL PEPTIDASE I FROM BACILLUS AMYLOLIQUEFACIENS

External Resource: Annotation


Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Bd1augb_ Alpha and beta proteins (a/b) Phosphorylase/hydrolase-like Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) (Bacillus amyloliquefaciens ) [TaxId: 1390 ], SCOPe (2.08)
Cd1augc_ Alpha and beta proteins (a/b) Phosphorylase/hydrolase-like Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) (Bacillus amyloliquefaciens ) [TaxId: 1390 ], SCOPe (2.08)
Dd1augd_ Alpha and beta proteins (a/b) Phosphorylase/hydrolase-like Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) (Bacillus amyloliquefaciens ) [TaxId: 1390 ], SCOPe (2.08)
Ad1auga_ Alpha and beta proteins (a/b) Phosphorylase/hydrolase-like Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) (Bacillus amyloliquefaciens ) [TaxId: 1390 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyPyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) 8044573 3000655 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyPyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) 8044573 3000655 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyPyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) 8044573 3000655 SCOP2B (2022-06-29)
ASCOP2 FamilyPyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) 8032195 4000580 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyPyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) 8044573 3000655 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
Be1augB1 A: C-terminal subdomain in Lon-related proteases catalytic domainsX: C-terminal subdomain in Lon-related proteases catalytic domainsH: C-terminal subdomain in Lon-related proteases catalytic domainsT: NAD_binding_1F:ECOD (20:10:01)
Ce1augC1 A: C-terminal subdomain in Lon-related proteases catalytic domainsX: C-terminal subdomain in Lon-related proteases catalytic domainsH: C-terminal subdomain in Lon-related proteases catalytic domainsT: NAD_binding_1F:ECOD (20:10:01)
De1augD1 A: C-terminal subdomain in Lon-related proteases catalytic domainsX: C-terminal subdomain in Lon-related proteases catalytic domainsH: C-terminal subdomain in Lon-related proteases catalytic domainsT: NAD_binding_1F:ECOD (20:10:01)
Ae1augA1 A: C-terminal subdomain in Lon-related proteases catalytic domainsX: C-terminal subdomain in Lon-related proteases catalytic domainsH: C-terminal subdomain in Lon-related proteases catalytic domainsT: NAD_binding_1F:ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B3.40.630.20 Alpha Beta 3-Layer(aba) Sandwich Aminopeptidase Peptidase C15, pyroglutamyl peptidase I-likeCATH (4.3.0)
C3.40.630.20 Alpha Beta 3-Layer(aba) Sandwich Aminopeptidase Peptidase C15, pyroglutamyl peptidase I-likeCATH (4.3.0)
D3.40.630.20 Alpha Beta 3-Layer(aba) Sandwich Aminopeptidase Peptidase C15, pyroglutamyl peptidase I-likeCATH (4.3.0)
A3.40.630.20 Alpha Beta 3-Layer(aba) Sandwich Aminopeptidase Peptidase C15, pyroglutamyl peptidase I-likeCATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D
PYROGLUTAMYL PEPTIDASE-1

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B, C, D
IPR033694Pyroglutamyl peptidase I, Cys active siteActive Site
A, B, C, D
IPR029762Pyroglutamyl peptidase I, bacterial-typeFamily
A, B, C, D
IPR036440Peptidase C15, pyroglutamyl peptidase I-like superfamilyHomologous Superfamily
A, B, C, D
IPR000816Peptidase C15, pyroglutamyl peptidase IFamily
A, B, C, D
IPR033693Pyroglutamyl peptidase I, Glu active siteActive Site
A, B, C, D
IPR016125Peptidase C15, pyroglutamyl peptidase I-likeFamily

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

ChainsEnzyme NameDescriptionCatalytic Residues
pyroglutamyl-peptidase I  M-CSA #633

Pyroglutamyl peptidase I is a cytosolic cysteine protease that cleaves cleaves N-terminal pyroglutamyl (pGlu) residues from a broad specturm of pGlu-containing peptides including thyrotropin releasing hormone (TRH), luterinizing hormone releasing hormone (LH-RH), bombesin (from the skin of reptiles), neurotensin (from mammalian brain) and the gastrins (gastric secretion stimulants). Such peptides with an N-terminal pGlu residue are resistant to degradation by conventional aminopeptidases. In the case of TRH and LH-RH this is important in protecting the hormones during their journey from the hypothalamus (where they are produced) to the pituitary gland. Pyroglutamyl peptidase I is widely found in bacteria and plants as well as in animals; in archaea and eubacteria it may have a role in detoxification/nutrient assimilation of N-terminally blocked peptides.

Defined by 4 residues: GLU:A-81ARG:A-91CYS:A-144HIS:A-168
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Explore in 3D: M-CSA Motif Definition
Search M-CSA Motif
EC: 3.4.19.3 (PDB Primary Data)