2XWN

Crystal structure of IspD from Mycobacterium tuberculosis in complex with CTP and Mg

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	d2xwna1	Alpha and beta proteins (a/b)	Nucleotide-diphospho-sugar transferases	Nucleotide-diphospho-sugar transferases	automated matches	automated matches	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
A	d2xwna2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
B	d2xwnb1	Alpha and beta proteins (a/b)	Nucleotide-diphospho-sugar transferases	Nucleotide-diphospho-sugar transferases	automated matches	automated matches	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
B	d2xwnb2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Nucleotide-diphospho-sugar transferases	8083037	3000077	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nucleotide-diphospho-sugar transferases	8083037	3000077	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	IspD	e2xwnA1	A: a/b three-layered sandwiches	X: Nucleotide-diphospho-sugar transferases (From Topology)	H: Nucleotide-diphospho-sugar transferases (From Topology)	T: Nucleotide-diphospho-sugar transferases	F: IspD	ECOD (1.6)
B	IspD	e2xwnB1	A: a/b three-layered sandwiches	X: Nucleotide-diphospho-sugar transferases (From Topology)	H: Nucleotide-diphospho-sugar transferases (From Topology)	T: Nucleotide-diphospho-sugar transferases	F: IspD	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.550.10	Alpha Beta	Alpha-Beta Complex	Spore Coat Polysaccharide Biosynthesis Protein SpsA	Chain A	CATH (4.3.0)
B	3.90.550.10	Alpha Beta	Alpha-Beta Complex	Spore Coat Polysaccharide Biosynthesis Protein SpsA	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01128	2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase (IspD)	2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	2-C-METHYL-D-ERYTHRITOL 4-PHOSPHATE CYTIDYLYLTRANSFERASE	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding nucleotide binding nucleoside phosphate binding organic cyclic compound binding anion binding pyrimidine ribonucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding nucleotide binding nucleoside phosphate binding organic cyclic compound binding anion binding pyrimidine ribonucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding CTP binding pyrimidine nucleotide binding manganese ion binding transition metal ion binding zinc ion binding cytidylyltransferase activity 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups	lipid biosynthetic process isopentenyl diphosphate biosynthetic process carbohydrate derivative metabolic process terpenoid biosynthetic process glyceraldehyde-3-phosphate metabolic process phospholipid metabolic process phosphate-containing compound metabolic process phosphorus metabolic process isoprenoid biosynthetic process isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway terpenoid biosynthetic process, mevalonate-independent primary metabolic process phospholipid biosynthetic process aldehyde metabolic process lipid biosynthetic process isopentenyl diphosphate biosynthetic process carbohydrate derivative metabolic process terpenoid biosynthetic process glyceraldehyde-3-phosphate metabolic process phospholipid metabolic process phosphate-containing compound metabolic process phosphorus metabolic process isoprenoid biosynthetic process isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway terpenoid biosynthetic process, mevalonate-independent primary metabolic process phospholipid biosynthetic process aldehyde metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process metabolic process cellular process isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway involved in terpenoid biosynthetic process terpenoid metabolic process lipid metabolic process isoprenoid metabolic process isopentenyl diphosphate metabolic process	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR034683	Cytidylyltransferase IspD/TarI	Family
A, B	IPR018294	4-diphosphocytidyl-2C-methyl-D-erythritol synthase, conserved site	Conserved Site
A, B	IPR029044	Nucleotide-diphospho-sugar transferases	Homologous Superfamily
A, B	IPR001228	2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase	Family
A, B	IPR050088	IspD/TarI cytidylyltransferase, baterial-type	Family

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.