Annotations: 9GUJ

Crystal structure of transcription factor NtcA from Synechococcus elongatus in complex with its transcriptional co- activator PipX and its target DNA (Crystal II)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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)
E [auth J]	SCOP2B Superfamily	PipX-like	8092203	3002570	SCOP2B (2022-06-29)
F [auth H]	SCOP2B Superfamily	PipX-like	8092203	3002570	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	PipX-like	8092203	3002570	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)
E [auth J]	Beta-Casp	e9gujJ1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
F [auth H]	Beta-Casp	e9gujH1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
K	Beta-Casp	e9gujK1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
A [auth D]	Beta-Casp	e9gujD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
B [auth F]	Beta-Casp	e9gujF1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
G [auth A]	Beta-Casp	e9gujA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
H [auth B]	Beta-Casp	e9gujB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth D], B [auth F], G [auth A], H [auth B]	PF13545	Crp-like helix-turn-helix domain (HTH_Crp_2)	Crp-like helix-turn-helix domain	This family represents a crp-like helix-turn-helix domain that is likely to bind DNA.	Domain
A [auth D], B [auth F], G [auth A], H [auth B]	PF00027	Cyclic nucleotide-binding domain (cNMP_binding)	Cyclic nucleotide-binding domain	This domain sensor domain can bind cAMP, cGMP, c-di-GMP, oxygen and 2-oxoglutarate (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth J], F [auth H], K	PipX	-	-	-
C [auth G], D [auth I], I [auth C], J [auth E]	DNA	-	-	-
A [auth D], B [auth F], G [auth A], H [auth B]	Global nitrogen regulator	DNA binding binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity	-	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth J], F [auth H], K	IPR021926	PII-interacting protein X, cyanobacteria	Family
A [auth D], B [auth F], G [auth A], H [auth B]	IPR050397	Global Transcriptional Regulators in Environmental Response	Family
A [auth D], B [auth F], G [auth A], H [auth B]	IPR000595	Cyclic nucleotide-binding domain	Domain
A [auth D], B [auth F], G [auth A], H [auth B]	IPR018335	Transcription regulator HTH, Crp-type, conserved site	Conserved Site
A [auth D], B [auth F], G [auth A], H [auth B]	IPR018490	Cyclic nucleotide-binding domain superfamily	Homologous Superfamily
A [auth D], B [auth F], G [auth A], H [auth B]	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A [auth D], B [auth F], G [auth A], H [auth B]	IPR022299	Transcription regulator, NtcA	Family
A [auth D], B [auth F], G [auth A], H [auth B]	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A [auth D], B [auth F], G [auth A], H [auth B]	IPR012318	Crp-type HTH domain	Domain
A [auth D], B [auth F], G [auth A], H [auth B]	IPR014710	RmlC-like jelly roll fold	Homologous Superfamily

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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.