2NAC

HIGH RESOLUTION STRUCTURES OF HOLO AND APO FORMATE DEHYDROGENASE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2naca1	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	Formate/glycerate dehydrogenases, NAD-domain	Formate dehydrogenase	(Pseudomonas sp. 101 ) [TaxId: 33067 ],	SCOPe (2.08)
A	d2naca2	Alpha and beta proteins (a/b)	Flavodoxin-like	Formate/glycerate dehydrogenase catalytic domain-like	Formate/glycerate dehydrogenases, substrate-binding domain	Formate dehydrogenase	(Pseudomonas sp. 101 ) [TaxId: 33067 ],	SCOPe (2.08)
B	d2nacb1	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	Formate/glycerate dehydrogenases, NAD-domain	Formate dehydrogenase	(Pseudomonas sp. 101 ) [TaxId: 33067 ],	SCOPe (2.08)
B	d2nacb2	Alpha and beta proteins (a/b)	Flavodoxin-like	Formate/glycerate dehydrogenase catalytic domain-like	Formate/glycerate dehydrogenases, substrate-binding domain	Formate dehydrogenase	(Pseudomonas sp. 101 ) [TaxId: 33067 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	D-lactate/D-glycerate dehydrogenase-like	8001001	4000099	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	D-2-hydroxyacid dehydrogenase-like	8001002	3000044	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	D-2-hydroxyacid dehydrogenase-like	8001002	3000044	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	2-Hacid_dh_C	e2nacA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: 2-Hacid_dh_C	ECOD (1.6)
A	2-Hacid_dh	e2nacA2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Formate/glycerate dehydrogenase catalytic domain-like	F: 2-Hacid_dh	ECOD (1.6)
B	2-Hacid_dh_C	e2nacB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: 2-Hacid_dh_C	ECOD (1.6)
B	2-Hacid_dh	e2nacB2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Formate/glycerate dehydrogenase catalytic domain-like	F: 2-Hacid_dh	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02826	D-isomer specific 2-hydroxyacid dehydrogenase, NAD binding domain (2-Hacid_dh_C)	D-isomer specific 2-hydroxyacid dehydrogenase, NAD binding domain	This domain is inserted into the catalytic domain, the large dehydrogenase and D-lactate dehydrogenase families in SCOP. N-terminal portion of which is represented by family Pfam:PF00389.	Domain
A, B	PF00389	D-isomer specific 2-hydroxyacid dehydrogenase, catalytic domain (2-Hacid_dh)	D-isomer specific 2-hydroxyacid dehydrogenase, catalytic domain	This family represents the largest portion of the catalytic domain of 2-hydroxyacid dehydrogenases as the NAD binding domain is inserted within the structural domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	NAD-DEPENDENT FORMATE DEHYDROGENASE	oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on CH-OH group of donors catalytic activity NAD binding binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding small molecule binding formate dehydrogenase (NAD+) activity oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on CH-OH group of donors catalytic activity NAD binding binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding small molecule binding formate dehydrogenase (NAD+) activity oxidoreductase activity, acting on the aldehyde or oxo group of donors oxidoreductase activity, acting on the aldehyde or oxo group of donors, NAD or NADP as acceptor	catabolic process oxoacid metabolic process carboxylic acid metabolic process organic acid metabolic process organic acid catabolic process formate catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process small molecule metabolic process metabolic process cellular process monocarboxylic acid metabolic process small molecule catabolic process catabolic process oxoacid metabolic process carboxylic acid metabolic process organic acid metabolic process organic acid catabolic process formate catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process small molecule metabolic process metabolic process cellular process monocarboxylic acid metabolic process small molecule catabolic process formate metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR033689	NAD-dependent formate dehydrogenase	Family
A, B	IPR006139	D-isomer specific 2-hydroxyacid dehydrogenase, catalytic domain	Domain
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR029752	D-isomer specific 2-hydroxyacid dehydrogenase, NAD-binding domain conserved site 1	Conserved Site
A, B	IPR029753	D-isomer specific 2-hydroxyacid dehydrogenase, NAD-binding domain conserved site	Conserved Site
A, B	IPR006140	D-isomer specific 2-hydroxyacid dehydrogenase, NAD-binding domain	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	NAD-dependent formate dehydrogenase M-CSA #902	NAD-dependent formate dehydrogenase (FDH) catalyses the NAD+-dependent oxidation of a formate anion to carbon dioxide coupled with the reduction of NAD+ to NADH. Formate/glycerate and related dehydrogenases of the D-specific 2-hydroxy acid dehydrogenase family have two highly similar subdomains of the alpha/beta form, with NAD binding occurring in the cleft between subdomains. NAD contacts are primarily to the Rossmann-fold NAD-binding domain which is inserted within the linear sequence of the more diverse flavodoxin-like catalytic subdomain. Some related proteins have similar structural subdomain but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. FDHs of this family contain no metal ions or prosthetic groups. Catalysis occurs though direct transfer of the hydride ion to NAD+ without the stages of acid-base catalysis typically found in related dehydrogenases. FDHs are found in all methylotrophic microorganisms in energy production from C1 compounds such as methanol, and in the stress responses of plants [PMID:9178506, PMID:12144528, PMID:11921099]. NAD-dependent FDH is useful in cofactor regeneration in asymmetrical biocatalytic reduction processes, where FDH irreversibly oxidises formate to carbon dioxide, while reducing the oxidised form of the cofactor to the reduced form.	Defined by 4 residues: ASN:A-146ARG:A-284GLN:A-313HIS:A-332 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 1.2.1.2 (PDB Primary Data) Search M-CSA Motif + EC 1.2.1.2 EC: 1.17.1.9 (UniProt) Search M-CSA Motif + EC 1.17.1.9

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.