3P4G

X-ray crystal structure of a hyperactive, Ca2+-dependent, beta-helical antifreeze protein from an Antarctic bacterium

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Peptidase_M10_C_like	e3p4gA1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Serralysin-like metalloprotease-C (From Topology)	T: Serralysin-like metalloprotease-C	F: Peptidase_M10_C_like	ECOD (1.6)
B	Peptidase_M10_C_like	e3p4gB1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Serralysin-like metalloprotease-C (From Topology)	T: Serralysin-like metalloprotease-C	F: Peptidase_M10_C_like	ECOD (1.6)
C	Peptidase_M10_C_like	e3p4gC1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Serralysin-like metalloprotease-C (From Topology)	T: Serralysin-like metalloprotease-C	F: Peptidase_M10_C_like	ECOD (1.6)
D	Peptidase_M10_C_like	e3p4gD1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Serralysin-like metalloprotease-C (From Topology)	T: Serralysin-like metalloprotease-C	F: Peptidase_M10_C_like	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.160.20.160	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)
B	2.160.20.160	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)
C	2.160.20.160	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)
D	2.160.20.160	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF18815	Bacterial antifreeze protein repeat (AFP_2)	Bacterial antifreeze protein repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Antifreeze protein	cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR047995	Choice-of-anchor K domain	Domain
A, B, C, D	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B, C, D	IPR041690	Cadherin-like domain	Domain
A, B, C, D	IPR049826	Ig-like Ice domain	Domain
A, B, C, D	IPR011049	Serralysin-like metalloprotease, C-terminal	Homologous Superfamily
A, B, C, D	IPR049531	Antifreeze protein repeat	Repeat

RCSB PDB Core Operations are 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.