3K45

Alternate Binding Modes Observed for the E- and Z-isomers of 2,4-Diaminofuro[2,3d]pyrimidines as Ternary Complexes with NADPH and Mouse Dihydrofolate Reductase

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	d3k45a_	Alpha and beta proteins (a/b)	Dihydrofolate reductase-like	Dihydrofolate reductase-like	Dihydrofolate reductases	Dihydrofolate reductases, eukaryotic type	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Dihydrofolate reductase-like	8068933	3001255	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	DHFR_1	e3k45A1	A: a/b three-layered sandwiches	X: Dihydrofolate reductases (From Topology)	H: Dihydrofolate reductases (From Topology)	T: Dihydrofolate reductases	F: DHFR_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.430.10	Alpha Beta	3-Layer(aba) Sandwich	Dihydrofolate Reductase, subunit A	Dihydrofolate Reductase, subunit A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00186	Dihydrofolate reductase (DHFR_1)	Dihydrofolate reductase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Dihydrofolate reductase	dihydrofolic acid binding modified amino acid binding binding organic acid binding ion binding organic cyclic compound binding anion binding carboxylic acid binding heterocyclic compound binding small molecule binding RNA binding nucleic acid binding mRNA binding nucleoside phosphate binding dihydrofolic acid binding modified amino acid binding binding organic acid binding ion binding organic cyclic compound binding anion binding carboxylic acid binding heterocyclic compound binding small molecule binding RNA binding nucleic acid binding mRNA binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding nucleotide binding NADP binding dihydrofolate reductase activity 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 catalytic activity	response to methotrexate response to stimulus response to chemical response to oxygen-containing compound response to nitrogen compound response to organic cyclic compound regulation of catalytic activity biological regulation positive regulation of catalytic activity regulation of oxidoreductase activity positive regulation of oxidoreductase activity positive regulation of nitric-oxide synthase activity regulation of molecular function positive regulation of molecular function response to methotrexate response to stimulus response to chemical response to oxygen-containing compound response to nitrogen compound response to organic cyclic compound regulation of catalytic activity biological regulation positive regulation of catalytic activity regulation of oxidoreductase activity positive regulation of oxidoreductase activity positive regulation of nitric-oxide synthase activity regulation of molecular function positive regulation of molecular function regulation of monooxygenase activity positive regulation of monooxygenase activity regulation of nitric-oxide synthase activity folic acid-containing compound metabolic process modified amino acid metabolic process metabolic process cellular process tetrahydrofolate metabolic process pteridine-containing compound metabolic process oxoacid metabolic process dicarboxylic acid metabolic process dihydrofolate metabolic process carboxylic acid metabolic process organic acid metabolic process small molecule metabolic process cellular response to stimulus regulation of cellular process cellular response to oxidative stress detoxification regulation of cellular response to stress reactive oxygen species metabolic process cellular response to chemical stress regulation of cellular response to oxidative stress response to superoxide cellular oxidant detoxification cellular response to oxygen radical cellular response to reactive oxygen species cellular response to stress response to stress regulation of response to stress regulation of response to oxidative stress regulation of biological process cellular detoxification regulation of superoxide metabolic process cellular response to oxygen-containing compound response to reactive oxygen species regulation of removal of superoxide radicals response to toxic substance superoxide metabolic process removal of superoxide radicals response to oxidative stress cellular response to chemical stimulus regulation of response to stimulus regulation of response to reactive oxygen species cellular response to superoxide regulation of metabolic process regulation of reactive oxygen species metabolic process cellular response to toxic substance response to oxygen radical vitamin metabolic process amide metabolic process water-soluble vitamin metabolic process folic acid metabolic process multicellular organismal process cellular developmental process cell projection organization cell development neuron projection development regeneration response to axon injury neuron projection regeneration cellular component organization neurogenesis multicellular organism development axon regeneration neuron differentiation cell differentiation anatomical structure development cellular component organization or biogenesis response to wounding system development developmental process plasma membrane bounded cell projection organization nervous system development axon development generation of neurons neuron development polyol metabolic process small molecule biosynthetic process organic hydroxy compound metabolic process alcohol metabolic process diol biosynthetic process diol metabolic process biosynthetic process tetrahydrobiopterin biosynthetic process tetrahydrobiopterin metabolic process organic hydroxy compound biosynthetic process pteridine-containing compound biosynthetic process polyol biosynthetic process alcohol biosynthetic process tetrahydrofolate interconversion one-carbon metabolic process response to nicotine folic acid-containing compound biosynthetic process modified amino acid biosynthetic process tetrahydrofolate biosynthetic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytosol nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR017925	Dihydrofolate reductase conserved site	Conserved Site
A	IPR012259	Dihydrofolate reductase	Family
A	IPR024072	Dihydrofolate reductase-like domain superfamily	Homologous Superfamily
A	IPR001796	Dihydrofolate reductase domain	Domain

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.