Annotations: 4IUH

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	preSET_CXC	e4iuhB1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: preSET_CXC	ECOD (v294.2)
A	PI31_Prot_N	e4iuhA1	A: beta barrels	X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	F: PI31_Prot_N	ECOD (v294.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.450.40	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	GAF domain	CATH (4.3.0)
A	3.30.450.40	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	GAF domain	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B	PF13185	GAF domain (GAF_2)	GAF domain	The GAF domain is named after some of the proteins it is found in, including cGMP-specific phosphodiesterases, adenylyl cyclases and FhlA. It is also found in guanylyl cyclases and phytochromes [1,2]. The structure of a GAF domain shows that the doma ...	The GAF domain is named after some of the proteins it is found in, including cGMP-specific phosphodiesterases, adenylyl cyclases and FhlA. It is also found in guanylyl cyclases and phytochromes [1,2]. The structure of a GAF domain shows that the domain shares a similar fold with the PAS domain [3]. This domain can bind O2, CO and NO (Matilla et.al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain