Annotations: 5W10

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	GAF domain	8099915	4001852	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	GAF domain-like	8099916	3000080	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	GAF domain-like	8099916	3000080	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	GAF domain-like	8099916	3000080	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	GAF domain-like	8099916	3000080	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)
A	GAF	e5w10A1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: GAF	ECOD (1.6)
B	GAF	e5w10B1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: GAF	ECOD (1.6)
C	GAF	e5w10C1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: GAF	ECOD (1.6)
D	GAF	e5w10D1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: GAF	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01590	GAF domain (GAF)	GAF domain	This domain is present in cGMP-specific phosphodiesterases, adenylyl and guanylyl cyclases, phytochromes, FhlA and NifA. Adenylyl and guanylyl cyclases catalyse ATP and GTP to the second messengers cAMP and cGMP, respectively, these products up-regul ...	This domain is present in cGMP-specific phosphodiesterases, adenylyl and guanylyl cyclases, phytochromes, FhlA and NifA. Adenylyl and guanylyl cyclases catalyse ATP and GTP to the second messengers cAMP and cGMP, respectively, these products up-regulating catalytic activity by binding to the regulatory GAF domain(s). The opposite hydrolysis reaction is catalysed by phosphodiesterase. cGMP-dependent 3',5'-cyclic phosphodiesterase catalyses the conversion of guanosine 3',5'-cyclic phosphate to guanosine 5'-phosphate. Here too, cGMP regulates catalytic activity by GAF-domain binding. Phytochromes are regulatory photoreceptors in plants and bacteria which exist in two thermally-stable states that are reversibly inter-convertible by light: the Pr state absorbs maximally in the red region of the spectrum, while the Pfr state absorbs maximally in the far-red region. This domain is also found in FhlA (formate hydrogen lyase transcriptional activator) and NifA, a transcriptional activator which is required for activation of most Nif operons which are directly involved in nitrogen fixation. NifA interacts with sigma-54. This domain can bind biliverdine and phycocyanobilin (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
A, B, C, D	cGMP-specific phosphodiesterase	transferase activity nucleotidyltransferase activity catalytic activity diguanylate cyclase activity transferase activity, transferring phosphorus-containing groups binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding	regulation of bacterial-type flagellum-dependent cell motility negative regulation of locomotion regulation of biological process regulation of cell motility regulation of cellular process biological regulation negative regulation of biological process archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility regulation of locomotion negative regulation of cellular process negative regulation of cell motility cellular process bacterial-type flagellum-dependent cell motility regulation of bacterial-type flagellum-dependent cell motility negative regulation of locomotion regulation of biological process regulation of cell motility regulation of cellular process biological regulation negative regulation of biological process archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility regulation of locomotion negative regulation of cellular process negative regulation of cell motility cellular process bacterial-type flagellum-dependent cell motility cell motility negative regulation of bacterial-type flagellum-dependent cell motility locomotion cell adhesion involved in biofilm formation cell aggregation biofilm formation biological process involved in intraspecies interaction between organisms cell-substrate adhesion single-species biofilm formation aggregation of unicellular organisms submerged biofilm formation cell adhesion involved in single-species biofilm formation cell adhesion single-species submerged biofilm formation	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR050469	Bacterial Diguanylate Cyclase	Family
A, B, C, D	IPR000160	GGDEF domain	Domain
A, B, C, D	IPR003018	GAF domain	Domain
A, B, C, D	IPR029016	GAF-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A, B, C, D	IPR029787	Nucleotide cyclase	Homologous Superfamily

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.