3LX4 | pdb_00003lx4

Stepwise [FeFe]-hydrogenase H-cluster assembly revealed in the structure of HydA(deltaEFG)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product 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	Fe-only hydrogenase	8100494	3001826	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Fe-only hydrogenase smaller subunit	8101046	3001779	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Fe-only hydrogenase smaller subunit	8101046	3001779	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Fe-only hydrogenase	8100494	3001826	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	Cu_amine_oxid	e3lx4A5	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: RIFT-related	T: double psi	F: Cu_amine_oxid	ECOD (v294.1)
B	Fe_hyd_lg_C	e3lx4B3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Fe_hyd_lg_C	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1780	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
A	3.40.950.10	Alpha Beta	3-Layer(aba) Sandwich	Fe-only Hydrogenase (Larger Subunit)	Chain L, domain 3	CATH (4.3.0)
B	3.40.50.1780	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B	3.40.950.10	Alpha Beta	3-Layer(aba) Sandwich	Fe-only Hydrogenase (Larger Subunit)	Chain L, domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02906	Iron only hydrogenase large subunit, C-terminal domain (Fe_hyd_lg_C)	Iron only hydrogenase large subunit, C-terminal domain		Domain
A, B	PF02256	Iron hydrogenase small subunit (Fe_hyd_SSU)	Iron hydrogenase small subunit	This family represents the small subunit of the Fe-only hydrogenases EC:1.18.99.1. The subunit is comprised of alternating random coil and alpha helical structures that encompasses the large subunit in a novel protein fold [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Fe-hydrogenase	oxidoreductase activity catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR004108	Iron hydrogenase, large subunit, C-terminal	Domain
A, B	IPR050340	Cytosolic Fe-S Cluster Assembly Factor	Family
A, B	IPR009016	Iron hydrogenase	Homologous Superfamily
A, B	IPR003149	Iron hydrogenase, small subunit	Domain

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.