Annotations: 3Q4N

Crystal structure of hypothetical protein MJ0754 from Methanococcus jannaschii DSM 2661

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ferritin-like	8052468	3001658	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ferritin-like	8052468	3001658	SCOP2B (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	4HBT_3	e3q4nA1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: 4HBT_3	ECOD (v294.1)
B	4HBT_3	e3q4nB1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: 4HBT_3	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1260.10	Mainly Alpha	Up-down Bundle	Ferritin	Ferritin, core subunit, four-helix bundle	CATH (4.3.0)
B	1.20.1260.10	Mainly Alpha	Up-down Bundle	Ferritin	Ferritin, core subunit, four-helix bundle	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF09968	Uncharacterized protein domain (DUF2202) (DUF2202)	Uncharacterized protein domain (DUF2202)	This domain is found in Uncharacterized protein MJ0754 from Methanocaldococcus jannaschii and similar proteins from bacteria and archaea. MJ0754 adopts a dimeric assembly, with each monomer consisting of six alpha-helices [1]. It is a member of a bro ...	This domain is found in Uncharacterized protein MJ0754 from Methanocaldococcus jannaschii and similar proteins from bacteria and archaea. MJ0754 adopts a dimeric assembly, with each monomer consisting of six alpha-helices [1]. It is a member of a broad superfamily of ferritin-like diiron-carboxylate proteins whose function is unknown. The conserved residues of a diiron centre are present within the putative active site.	Domain

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR012347	Ferritin-like	Homologous Superfamily
A, B	IPR019243	Domain of unknown function DUF2202	Domain
A, B	IPR009078	Ferritin-like superfamily	Homologous Superfamily

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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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.