Annotations: 4RNZ

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	LytM-like	8091011	4000931	SCOP2 (2022-06-29)
A	SCOP2 Family	OapA/Csd3 repeated domain-like	8091007	4004548	SCOP2 (2022-06-29)
A	SCOP2 Family	OapA/Csd3 repeated domain-like	8091008	4004548	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Duplicated hybrid motif	8091012	3001927	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	LysM domain-like	8091009	3001938	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	LysM domain-like	8091010	3001938	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	F_UNCLASSIFIED	e4rnzA2	A: a+b two layers	X: Csd3 N-terminal domain (From Topology)	H: Csd3 N-terminal domain (From Topology)	T: Csd3 N-terminal domain	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF18059	e4rnzA1	A: a+b two layers	X: Csd3 N-terminal domain (From Topology)	H: Csd3 N-terminal domain (From Topology)	T: Csd3 N-terminal domain	F: PF18059	ECOD (1.6)
A	PF01551	e4rnzA3	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Duplicated hybrid motif	F: PF01551	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.450.350	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
A	2.70.70.10	Mainly Beta	Distorted Sandwich	Glucose Permease (Domain IIA)	Glucose Permease (Domain IIA)	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18059	Csd3 N-terminal (Csd3_N)	Csd3 N-terminal	Csd3 (also known as HdpA) is a bi-functional enzyme with delta,delta-endopeptidase activity and delta,delta-carboxypeptidase activity. The N-terminal domain is also known as domain 1 and is composed of an alpha/beta fold consisting of a five-stranded ...	Csd3 (also known as HdpA) is a bi-functional enzyme with delta,delta-endopeptidase activity and delta,delta-carboxypeptidase activity. The N-terminal domain is also known as domain 1 and is composed of an alpha/beta fold consisting of a five-stranded antiparallel beta-sheet and three short alpha-helices. Domain 1 blocks the active-site cleft of the LytM domain, with the protruding helix alpha-3 contributing to the Zn2+ coordination sphere. The fold of domain 1 is very remotely related to monellin/cystatin superfamily proteins, some of which act as inhibitors of cysteine peptidases [1].	Domain
A	PF19425	Csd3 second domain (Csd3_N2)	Csd3 second domain	This entry represents the second domain from the Csd3 peptidase [2]. This domain has a similar structure to Pfam:PF18059 despite low sequence similarity [2].	Domain
A	PF01551	Peptidase family M23 (Peptidase_M23)	Peptidase family M23	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Conserved hypothetical secreted protein	cation binding ion binding binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity	-	membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR045834	Csd3-like, second N-terminal domain	Domain
A	IPR016047	Peptidase M23	Domain
A	IPR040653	Csd3, N-terminal	Domain
A	IPR011055	Duplicated hybrid motif	Homologous Superfamily

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 R01GM133198.