Annotations: 4CJX

The crystal structure of Trypanosoma brucei N5, N10- methylenetetrahydrofolate dehydrogenase-cyclohydrolase (FolD) complexed with NADP cofactor and inhibitor

External Resource: Annotation

Domain Annotation: SCOP/SCOPe 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)
B	d4cjxb2	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	automated matches	automated matches	(Trypanosoma brucei brucei TREU927 ) [TaxId: 185431 ],	SCOPe (2.08)
B	d4cjxb1	Alpha and beta proteins (a/b)	Aminoacid dehydrogenase-like, N-terminal domain	Aminoacid dehydrogenase-like, N-terminal domain	automated matches	automated matches	(Trypanosoma brucei brucei TREU927 ) [TaxId: 185431 ],	SCOPe (2.08)
A	d4cjxa2	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	automated matches	automated matches	(Trypanosoma brucei brucei TREU927 ) [TaxId: 185431 ],	SCOPe (2.08)
A	d4cjxa1	Alpha and beta proteins (a/b)	Aminoacid dehydrogenase-like, N-terminal domain	Aminoacid dehydrogenase-like, N-terminal domain	automated matches	automated matches	(Trypanosoma brucei brucei TREU927 ) [TaxId: 185431 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Beta-Casp	e4cjxB1	A: alpha arrays	X: Four-helical up-and-down bundle	H: Glycoside hydrolase family 127 middle domain-related	T: Glycoside hydrolase family 127 middle domain-related	F: Beta-Casp	ECOD (v295)
A	RNA_pol_Rpb1_5	e4cjxA1	A: alpha arrays	X: Four-helical up-and-down bundle	H: Glycoside hydrolase family 127 middle domain-related	T: Glycoside hydrolase family 127 middle domain-related	F: RNA_pol_Rpb1_5	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	3.40.50.10860	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Leucine Dehydrogenase, chain A, domain 1	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.40.50.10860	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Leucine Dehydrogenase, chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02882	Tetrahydrofolate dehydrogenase/cyclohydrolase, NAD(P)-binding domain (THF_DHG_CYH_C)	Tetrahydrofolate dehydrogenase/cyclohydrolase, NAD(P)-binding domain		Domain
A, B	PF00763	Tetrahydrofolate dehydrogenase/cyclohydrolase, catalytic domain (THF_DHG_CYH)	Tetrahydrofolate dehydrogenase/cyclohydrolase, catalytic domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	C-1-TETRAHYDROFOLATE SYNTHASE, CYTOPLASMIC, PUTATIVE	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines cyclohydrolase activity methenyltetrahydrofolate cyclohydrolase activity hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds methylenetetrahydrofolate dehydrogenase (NADP+) 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 binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines cyclohydrolase activity methenyltetrahydrofolate cyclohydrolase activity hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds methylenetetrahydrofolate dehydrogenase (NADP+) 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 binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding	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 membrane-bounded organelle intracellular organelle mitochondrion organelle intracellular membrane-bounded organelle kinetoplast

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR020630	Tetrahydrofolate dehydrogenase/cyclohydrolase, catalytic domain	Domain
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR046346	Aminoacid dehydrogenase-like, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR020631	Tetrahydrofolate dehydrogenase/cyclohydrolase, NAD(P)-binding domain	Domain
A, B	IPR000672	Tetrahydrofolate dehydrogenase/cyclohydrolase	Family

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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.