3LVL | pdb_00003lvl

Crystal Structure of E.coli IscS-IscU complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth B]	d3lvlb_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	Cystathionine synthase-like	automated matches	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B [auth A]	d3lvla_	Alpha and beta proteins (a+b)	SufE/NifU	SufE/NifU	NifU/IscU domain	automated matches	(Escherichia coli O157:H7 str. EDL933 ) [TaxId: 155864 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2 Family	NifU/IscU domain	8064481	4001402	SCOP2 (2022-06-29)
B [auth A]	SCOP2 Superfamily	SufE/NifU	8064482	3000436	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 [auth B]		e3lvlB2	A: Subtilisin-like	X: Subtilisin-like	H: Subtilisin-like	T: Pyridoxal_deC	F:	ECOD (20:10:01)
B [auth A]		e3lvlA1	A: Immunoglobulin-like beta-sandwich	X: Galactose-binding domain-like	H: Galactose-binding domain-like	T: PA-IL	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth B]	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
A [auth B]	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
B [auth A]	3.90.1010.10	Alpha Beta	Alpha-Beta Complex	Sufe protein. Chain: A		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B]	PF00266	Aminotransferase class-V (Aminotran_5)	Aminotransferase class-V	This domain is found in amino transferases, and other enzymes including cysteine desulphurase EC:4.4.1.-.	Domain
B [auth A]	PF01592	NifU-like N terminal domain (NifU_N)	NifU-like N terminal domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B]	Cysteine desulfurase	cysteine desulfurase activity sulfurtransferase activity transferase activity, transferring sulphur-containing groups transferase activity catalytic activity iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding cysteine desulfurase activity sulfurtransferase activity transferase activity, transferring sulphur-containing groups transferase activity catalytic activity iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding anion binding heterocyclic compound binding cation binding metal ion binding	RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process tRNA processing metabolic process cellular process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process tRNA processing metabolic process cellular process macromolecule metabolic process RNA processing cellular component biogenesis cellular component organization metallo-sulfur cluster assembly cellular component assembly iron-sulfur cluster assembly cellular component organization or biogenesis [2Fe-2S] cluster assembly	protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex sulfurtransferase complex L-cysteine desulfurase complex transferase complex cytoplasm cytosol
B [auth A]	NifU-like protein	iron-sulfur cluster binding binding metal cluster binding small molecule binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding	cellular component biogenesis cellular component organization metallo-sulfur cluster assembly cellular component assembly iron-sulfur cluster assembly cellular process cellular component organization or biogenesis	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B]	IPR020578	Aminotransferase class-V, pyridoxal-phosphate binding site	Binding Site
A [auth B]	IPR016454	Cysteine desulfurase	Family
A [auth B]	IPR015421	Pyridoxal phosphate-dependent transferase, major domain	Homologous Superfamily
A [auth B]	IPR015422	Pyridoxal phosphate-dependent transferase, small domain	Homologous Superfamily
A [auth B]	IPR015424	Pyridoxal phosphate-dependent transferase	Homologous Superfamily
A [auth B]	IPR000192	Aminotransferase class V domain	Domain
A [auth B]	IPR010240	Cysteine desulfurase IscS	Family
B [auth A]	IPR011339	Iron-sulfur cluster assembly scaffold protein IscU	Family
B [auth A]	IPR002871	NIF system FeS cluster assembly, NifU, N-terminal	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.