Annotations: 9S0A

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	Ribosomal_S18	e9s0aD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosomal_S18	ECOD (v295)
C	Ribosomal_S18	e9s0aC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosomal_S18	ECOD (v295)
B	Ribosomal_S18	e9s0aB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosomal_S18	ECOD (v295)
A	Ribosomal_S18	e9s0aA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosomal_S18	ECOD (v295)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Probable transcriptional regulator	DNA binding binding nucleic acid binding vitamin binding cobalamin binding tetrapyrrole binding heterocyclic compound binding small molecule binding transcription regulator activity DNA-binding transcription factor activity cation binding ion binding metal ion binding identical protein binding DNA binding binding nucleic acid binding vitamin binding cobalamin binding tetrapyrrole binding heterocyclic compound binding small molecule binding transcription regulator activity DNA-binding transcription factor activity cation binding ion binding metal ion binding identical protein binding protein binding	RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process macromolecule metabolic process	-

Chains	Accession	Name	Type
A, B, C, D	IPR003759	Cobalamin (vitamin B12)-binding module, cap domain	Domain
A, B, C, D	IPR009061	Putative DNA-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR006158	Cobalamin (vitamin B12)-binding domain	Domain
A, B, C, D	IPR036724	Cobalamin-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR047057	MerR transcriptional regulator	Family
A, B, C, D	IPR036594	Methionine synthase domain	Homologous Superfamily
A, B, C, D	IPR000551	MerR-type HTH domain	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.

9S0A | pdb_00009s0a