4NEC | pdb_00004nec

Conversion of a Disulfide Bond into a Thioacetal Group during Echinomycin Biosynthesis

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e4necA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Nucleotide-binding domain	F:	ECOD (v294.1)
G [auth D]		e4necD1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Nucleotide-binding domain	F:	ECOD (v294.1)
E [auth C]		e4necC1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Nucleotide-binding domain	F:	ECOD (v294.1)
C [auth B]	2OG-FeII_Oxy_2	e4necB1	A: a/b three-layered sandwiches	X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	F: 2OG-FeII_Oxy_2	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
G [auth D]	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
E [auth C]	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
C [auth B]	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth E], D [auth F], F [auth G], H	Echinomycin	-	-	-
A, C [auth B], E [auth C], G [auth D]	Putative SAM-dependent methyltransferase	transferase activity, transferring one-carbon groups transferase activity methyltransferase activity catalytic activity	methylation metabolic process cellular process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C [auth B], E [auth C], G [auth D]	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, C [auth B], E [auth C], G [auth D]	IPR041698	Methyltransferase domain 25	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth E], D [auth F], F [auth G], H	DSN	RESID: AA0195 , AA0624 PSI-MOD : D-serine (Ser) MOD:00202 , D-serine MOD:00891 , D-serine (Cys) MOD:00892 , 2-(L-cystein-S-yl)-D-serine MOD:01987
B [auth E], D [auth F], F [auth G], H	MVA	Parent Component: VAL RESID: AA0195 , AA0624
B [auth E], D [auth F], F [auth G], H	N2C	RESID: AA0195 , AA0624
B [auth E], D [auth F], F [auth G], H	NCY	RESID: AA0195 , AA0624

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.