Annotations: 6FNU

Structure of S. cerevisiae Methylenetetrahydrofolate reductase 1, catalytic domain

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d6fnua1	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	FAD-linked oxidoreductase	automated matches	automated matches	Baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d6fnua2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Methylenetetrahydrofolate reductase	8076150	4003348	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	FAD-linked oxidoreductase	8076151	3000663	SCOP2 (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		e6fnuA1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F:	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.220	Alpha Beta	Alpha-Beta Barrel	TIM Barrel		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02219	Methylenetetrahydrofolate reductase (MTHFR)	Methylenetetrahydrofolate reductase	This family includes the 5,10-methylenetetrahydrofolate reductase EC:1.7.99.5 from bacteria and methylenetetrahydrofolate reductase EC: 1.5.1.20 from eukaryotes. The structure for this domain is known [1] to be a TIM barrel.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Methylenetetrahydrofolate reductase 1	oxidoreductase activity oxidoreductase activity, acting on the CH-NH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on the CH-NH group of donors methylenetetrahydrofolate reductase [NAD(P)H] activity catalytic activity methylenetetrahydrofolate reductase (NADH) activity FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding oxidoreductase activity oxidoreductase activity, acting on the CH-NH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on the CH-NH group of donors methylenetetrahydrofolate reductase [NAD(P)H] activity catalytic activity methylenetetrahydrofolate reductase (NADH) activity FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding small molecule binding methylenetetrahydrofolate reductase (NADPH) activity	folic acid-containing compound metabolic process tetrahydrofolate interconversion modified amino acid metabolic process metabolic process cellular process small molecule metabolic process tetrahydrofolate metabolic process pteridine-containing compound metabolic process one-carbon metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004621	Methylenetetrahydrofolate reductase, catalytic domain, eukaryotes	Domain
A	IPR029041	FAD-linked oxidoreductase-like	Homologous Superfamily
A	IPR003171	Methylenetetrahydrofolate reductase-like, catalytic domain	Domain
A	IPR053806	MTHFR, SAM-binding regulatory domain	Domain

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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.