Annotations: 3ZYY

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth Y]	EUF08308	e3zyyY3	A: a+b two layers	X: Ribosomal protein L31e-like	H: Reductive activator for corrinoid/iron-sulfur protein second domain (From Topology)	T: Reductive activator for corrinoid/iron-sulfur protein second domain	F: EUF08308	ECOD (1.6)
B [auth Y]	DUF4445_C	e3zyyY1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: DUF4445_C	ECOD (1.6)
B [auth Y]	DUF4445_N	e3zyyY2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: DUF4445_N	ECOD (1.6)
A [auth X]	Fer2	e3zyyX1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Fer2	ECOD (1.6)
A [auth X]	EUF08308	e3zyyX2	A: a+b two layers	X: Ribosomal protein L31e-like	H: Reductive activator for corrinoid/iron-sulfur protein second domain (From Topology)	T: Reductive activator for corrinoid/iron-sulfur protein second domain	F: EUF08308	ECOD (1.6)
A [auth X]	DUF4445_C	e3zyyX4	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: DUF4445_C	ECOD (1.6)
A [auth X]	DUF4445_N	e3zyyX3	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: DUF4445_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth Y]	3.10.20.880	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
B [auth Y]	3.30.420.480	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
A [auth X]	3.10.20.30	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Beta-grasp domain	CATH (4.3.0)
A [auth X]	3.10.20.880	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
A [auth X]	3.30.420.480	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X], B [auth Y]	PF17651	RACo middle region (Raco_middle)	RACo middle region	This family includes reductive activator of CoFeSP (RACo) proteins, Swiss:Q3ACS2. Structure analysis of RACo indicate that it contains 4 regions: N-terminal region Pfam:PF00111 (residues 3-94) binding the [2Fe-2S] cluster, a linker region (residues 9 ...	This family includes reductive activator of CoFeSP (RACo) proteins, Swiss:Q3ACS2. Structure analysis of RACo indicate that it contains 4 regions: N-terminal region Pfam:PF00111 (residues 3-94) binding the [2Fe-2S] cluster, a linker region (residues 95-125), the middle region (residues 126-206), and the large C-terminal domain Pfam:PF14574 (residues 207-630). This entry pertains to the middle region. This region contains residues in their alpha-helices (H6 and H7) that mediate dimerization with subdomain I of the C-terminal domain.	Domain
A [auth X], B [auth Y]	PF17650	RACo linker region (RACo_linker)	RACo linker region	This family includes reductive activator of CoFeSP (RACo) proteins, Swiss:Q3ACS2. Structure analysis of RACo indicate that it contains 4 regions: N-terminal region Pfam:PF00111 (residues 3-94) binding the [2Fe-2S] cluster, a linker region (residues 9 ...	This family includes reductive activator of CoFeSP (RACo) proteins, Swiss:Q3ACS2. Structure analysis of RACo indicate that it contains 4 regions: N-terminal region Pfam:PF00111 (residues 3-94) binding the [2Fe-2S] cluster, a linker region (residues 95-125), the middle region (residues 126-206), and the large C-terminal domain Pfam:PF14574 (residues 207-630). This entry pertains to the linker region. The linker region is only present in RACE (reductive activases for corrinoid enzymes) protein sequences with the N-terminal [2Fe-2S] cluster family Pfam:PF00111 and is absent in the RamA-like RACE proteins, suggesting that the linker domain and the N-terminal domain form one functional unit [1].	Domain
A [auth X], B [auth Y]	PF14574	C-terminal domain of RACo the ASKHA domain (RACo_C_ter)	C-terminal domain of RACo the ASKHA domain	This family includes reductive activator of CoFeSP (RACo) proteins, Swiss:Q3ACS2. Structure analysis of RACo indicate that it contains 4 regions: N-terminal region Pfam:PF00111 (residues 3-94) binding the [2Fe-2S] cluster, a linker region (residues 9 ...	This family includes reductive activator of CoFeSP (RACo) proteins, Swiss:Q3ACS2. Structure analysis of RACo indicate that it contains 4 regions: N-terminal region Pfam:PF00111 (residues 3-94) binding the [2Fe-2S] cluster, a linker region (residues 95-125), the middle region (residues 126-206), and the large C-terminal domain (residues 207-630). This entry is specific for the C-terminal domain which harbors the ATP-binding site. Structural studies show that the C-terminal domain contains the conserved beta-beta-beta-alpha-beta-alpha-beta-alpha topology characteristic of the ASKHA (acetate and sugar kinases/heat shock protein 70/actin). Despite the low-sequence identity shared between members of the ASKHA super family, they show a common central fold. Members of the ASKHA include proteins that catalyze phosphoryl transfers or hydrolysis of ATP in a variety of biological contexts. Asp, Asn, Glu, and Gln residues are well conserved in the core of the ASKHA proteins, where they interact with the phosphates of ATP and the bound Mg2+ ions.	Domain
A [auth X], B [auth Y]	PF00111	2Fe-2S iron-sulfur cluster binding domain (Fer2)	2Fe-2S iron-sulfur cluster binding domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X], B [auth Y]	IRON-SULFUR CLUSTER BINDING PROTEIN	iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X], B [auth Y]	IPR041414	RamQ-like, middle-like domain	Domain
A [auth X], B [auth Y]	IPR036010	2Fe-2S ferredoxin-like superfamily	Homologous Superfamily
A [auth X], B [auth Y]	IPR001041	2Fe-2S ferredoxin-type iron-sulfur binding domain	Domain
A [auth X], B [auth Y]	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A [auth X], B [auth Y]	IPR027980	RamQ-like, C-terminal domain	Domain
A [auth X], B [auth Y]	IPR012675	Beta-grasp domain superfamily	Homologous Superfamily
A [auth X], B [auth Y]	IPR042259	RamQ-like, middle domain superfamily	Homologous Superfamily
A [auth X], B [auth Y]	IPR040506	RACo linker region	Domain
A [auth X], B [auth Y]	IPR052911	Corrinoid activation enzyme	Family

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.