Annotations: 3FRQ

Structure of the macrolide biosensor protein, MphR(A), with erythromcyin

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
B	SCOP2B Superfamily	Homeodomain-like	8090200	3000001	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	TetR C-terminal domain-like	8090201	3000086	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Homeodomain-like	8090200	3000001	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	TetR C-terminal domain-like	8090201	3000086	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)
B	IRS	e3frqB1	A: beta barrels	X: HTH	H: Nudix	T: Nudix	F: IRS	ECOD (v294.2)
A	Lipocalin	e3frqA1	A: beta barrels	X: Thioredoxin-like	H: Probable bacterial effector-binding domain	T: Probable bacterial effector-binding domain	F: Lipocalin	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
A	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Repressor protein MphR(A)	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding nucleic acid binding transcription regulatory region nucleic acid binding transcription regulator activity DNA-binding transcription factor activity transferase activity catalytic activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR009057	Homedomain-like superfamily	Homologous Superfamily
A, B	IPR050109	HTH-type, TetR-like transcriptional regulator	Family
A, B	IPR001647	DNA-binding HTH domain, TetR-type	Domain

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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.