2QTL | pdb_00002qtl

Crystal Structure of the FAD-containing FNR-like Module of Human Methionine Synthase Reductase

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	GTP_EFTU, MMR_HSR1	e2qtlA3	A: alpha bundles	X: Fusion glycoprotein F2	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: GTP_EFTU, MMR_HSR1	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.990.10	Mainly Alpha	Up-down Bundle	NADPH-cytochrome p450 Reductase	Chain A, domain 3	CATH (4.3.0)
A	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
A	3.40.50.80	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00175	Oxidoreductase NAD-binding domain (NAD_binding_1)	Oxidoreductase NAD-binding domain	Xanthine dehydrogenases, that also bind FAD/NAD, have essentially no similarity.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Methionine synthase reductase	FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding FAD binding flavin adenine dinucleotide binding oxidoreductase activity, acting on metal ions oxidoreductase activity FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding FAD binding flavin adenine dinucleotide binding oxidoreductase activity, acting on metal ions oxidoreductase activity oxidoreductase activity, acting on metal ions, NAD or NADP as acceptor catalytic activity [methionine synthase] reductase (NADPH) activity purine nucleotide binding adenyl nucleotide binding NADPH binding NADP binding NADPH-hemoprotein reductase activity oxidoreductase activity, acting on NAD(P)H oxidoreductase activity, acting on NAD(P)H, heme protein as acceptor molecular carrier activity	S-adenosylmethionine cycle S-adenosylmethionine metabolic process sulfur compound metabolic process metabolic process cellular process catabolic process oxoacid metabolic process sulfur amino acid metabolic process amino acid metabolic process organic acid catabolic process organic acid metabolic process alpha-amino acid metabolic process non-proteinogenic amino acid metabolic process carboxylic acid catabolic process S-adenosylmethionine cycle S-adenosylmethionine metabolic process sulfur compound metabolic process metabolic process cellular process catabolic process oxoacid metabolic process sulfur amino acid metabolic process amino acid metabolic process organic acid catabolic process organic acid metabolic process alpha-amino acid metabolic process non-proteinogenic amino acid metabolic process carboxylic acid catabolic process small molecule metabolic process amino acid catabolic process homocysteine metabolic process non-proteinogenic amino acid catabolic process L-amino acid catabolic process carboxylic acid metabolic process primary metabolic process L-homocysteine catabolic process L-amino acid metabolic process sulfur compound catabolic process alpha-amino acid catabolic process sulfur amino acid catabolic process small molecule catabolic process cobalamin metabolic process tetrapyrrole metabolic process dicarboxylic acid metabolic process modified amino acid metabolic process folic acid-containing compound metabolic process pteridine-containing compound metabolic process folic acid metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cytoskeleton membraneless organelle intracellular membraneless organelle intermediate filament cytoskeleton

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001709	Flavoprotein pyridine nucleotide cytochrome reductase	Domain
A	IPR001433	Oxidoreductase FAD/NAD(P)-binding	Domain
A	IPR003097	Sulfite reductase [NADPH] flavoprotein alpha-component-like, FAD-binding	Domain
A	IPR017938	Riboflavin synthase-like beta-barrel	Homologous Superfamily
A	IPR001094	Flavodoxin-like	Domain
A	IPR023173	NADPH-cytochrome p450 reductase, FAD-binding, alpha-helical domain superfamily	Homologous Superfamily
A	IPR008254	Flavodoxin/nitric oxide synthase	Domain
A	IPR039261	Ferredoxin-NADP reductase (FNR), nucleotide-binding domain	Homologous Superfamily
A	IPR017927	FAD-binding domain, ferredoxin reductase-type	Domain
A	IPR029039	Flavoprotein-like superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9UBK8	homocystinuria hyperhomocysteinemia methylcobalamin deficiency type cblE adenoma microcystic adenoma colorectal cancer male infertility nervous system disorder neural tube defects, folate-sensitive papillary adenoma follicular thyroid adenoma IgA glomerulonephritis lung cancer malignant colon neoplasm Adenoma, Trabecular homocystinuria hyperhomocysteinemia methylcobalamin deficiency type cblE adenoma microcystic adenoma colorectal cancer male infertility nervous system disorder neural tube defects, folate-sensitive papillary adenoma follicular thyroid adenoma IgA glomerulonephritis lung cancer malignant colon neoplasm Adenoma, Trabecular bipolar disorder ovarian cancer congenital anemia gastrointestinal stromal tumor inborn errors of metabolism malignant mesothelioma childhood acute lymphoblastic leukemia colorectal carcinoma gonorrhea neural tube defect attention deficit hyperactivity disorder, inattentive type osteosarcoma classic homocystinuria

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	CSO	Parent Component: CYS RESID: AA0205 PSI-MOD : L-cysteine sulfenic acid MOD:00210

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.

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