Annotations: 2P04

2.1 Ang structure of the dimerized PAS domain of signal transduction histidine kinase from Nostoc punctiforme PCC 73102 with homology to the H-NOXA/H-NOBA domain of the soluble guanylyl cyclase

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Pyr_redox_2	e2p04B1	A: alpha arrays	X: HTH	H: Nudix	T: Nudix	F: Pyr_redox_2	ECOD (v295)
A	SUI1	e2p04A1	A: alpha arrays	X: Bromodomain-like	H: SH3	T: SH3	F: SUI1	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.450.260	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	Haem NO binding associated domain	CATH (4.3.0)
A	3.30.450.260	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	Haem NO binding associated domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	signal transduction histidine kinase	phosphorus-oxygen lyase activity cyclase activity lyase activity guanylate cyclase activity catalytic activity binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011645	Haem NO binding associated	Domain
A, B	IPR042463	Haem NO binding associated domain superfamily	Homologous Superfamily

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.