Annotations: 1AI4

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ai4.1	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Penicillin acylase, catalytic domain	Penicillin acylase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1ai4.1	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Penicillin acylase, catalytic domain	Penicillin acylase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.439.10	Mainly Alpha	Orthogonal Bundle	Penicillin Amidohydrolase	domain 1	CATH (4.3.0)
A	1.10.287.150	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
B	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
B	2.30.120.10	Mainly Beta	Roll	Penicillin G acylase, beta-roll domain	Aminohydrolase, N-terminal nucleophile (Ntn) domain, beta-sheet knob region	CATH (4.3.0)
B	1.10.1400.10	Mainly Alpha	Orthogonal Bundle	Penicillin amidase (Acylase) alpha subunit, N-terminal domain	Aminohydrolase, alpha-helical knob region	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PENICILLIN AMIDOHYDROLASE	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides hydrolase activity penicillin amidase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds cation binding ion binding binding metal ion binding small molecule binding	response to stimulus response to chemical response to antibiotic antibiotic metabolic process biosynthetic process metabolic process cellular process antibiotic biosynthetic process	cellular anatomical structure periplasmic space
B	PENICILLIN AMIDOHYDROLASE	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides hydrolase activity penicillin amidase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds cation binding ion binding binding metal ion binding small molecule binding	response to stimulus response to chemical response to antibiotic antibiotic metabolic process biosynthetic process metabolic process cellular process antibiotic biosynthetic process	cellular anatomical structure periplasmic space

Chains	Accession	Name	Type
A	IPR043146	Penicillin amidase type, N-terminal domain, B-knob	Homologous Superfamily
A	IPR029055	Nucleophile aminohydrolases, N-terminal	Homologous Superfamily
A	IPR033813	Penicillin G acylase, C-terminal	Domain
A	IPR002692	Penicillin/GL-7-ACA/AHL/aculeacin-A acylase	Family
A	IPR014395	Penicillin/GL-7-ACA/AHL acylase	Family
A	IPR023343	Penicillin amidase type, domain 1	Homologous Superfamily
A	IPR043147	Penicillin amidase type, A-knob	Homologous Superfamily
B	IPR043146	Penicillin amidase type, N-terminal domain, B-knob	Homologous Superfamily
B	IPR029055	Nucleophile aminohydrolases, N-terminal	Homologous Superfamily
B	IPR033813	Penicillin G acylase, C-terminal	Domain
B	IPR002692	Penicillin/GL-7-ACA/AHL/aculeacin-A acylase	Family
B	IPR014395	Penicillin/GL-7-ACA/AHL acylase	Family
B	IPR023343	Penicillin amidase type, domain 1	Homologous Superfamily
B	IPR043147	Penicillin amidase type, A-knob	Homologous Superfamily