Annotations: 7MH0

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Simibi-like P-loop NTPases	8057751	3002018	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Simibi-like P-loop NTPases	8057751	3002018	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Simibi-like P-loop NTPases	8057751	3002018	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Simibi-like P-loop NTPases	8057751	3002018	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)
D	Secretin_N	e7mh0D1	A: alpha bundles	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (develop294)
C	Secretin_N	e7mh0C1	A: alpha bundles	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (develop294)
B	Secretin_N	e7mh0B1	A: alpha bundles	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (develop294)
A	Secretin_N	e7mh0A1	A: alpha bundles	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00117	Glutamine amidotransferase class-I (GATase)	Glutamine amidotransferase class-I		Domain
A, B, C, D	PF06418	CTP synthase N-terminus (CTP_synth_N)	CTP synthase N-terminus	This family consists of the N-terminal region of the CTP synthase protein (EC:6.3.4.2). This family is found in conjunction with Pfam:PF00117 located in the C-terminal region of the protein. CTP synthase catalyses the synthesis of CTP from UTP by ami ...	This family consists of the N-terminal region of the CTP synthase protein (EC:6.3.4.2). This family is found in conjunction with Pfam:PF00117 located in the C-terminal region of the protein. CTP synthase catalyses the synthesis of CTP from UTP by amination of the pyrimidine ring at the 4-position [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	CTP synthase 1	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding CTP synthase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity protein asparagine deamidase activity catalytic activity, acting on a protein hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides histone H1N76/N77 asparagine deamidase activity histone H1 asparagine deamidase activity hydrolase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds identical protein binding protein binding	response to stimulus response to chemical response to xenobiotic stimulus multicellular organismal process regulation of cellular process negative regulation of biological process negative regulation of type I interferon production cytokine production negative regulation of cellular process regulation of cytokine production regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process response to stimulus response to chemical response to xenobiotic stimulus multicellular organismal process regulation of cellular process negative regulation of biological process negative regulation of type I interferon production cytokine production negative regulation of cellular process regulation of cytokine production regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process type I interferon production negative regulation of metabolic process biological regulation negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process negative regulation of multicellular organismal process regulation of metabolic process regulation of type I interferon production ribose phosphate metabolic process CTP biosynthetic process nucleotide biosynthetic process carbohydrate derivative metabolic process pyrimidine nucleotide metabolic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process 'de novo' CTP biosynthetic process pyrimidine ribonucleoside triphosphate biosynthetic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process small molecule metabolic process pyrimidine nucleoside triphosphate biosynthetic process pyrimidine-containing compound biosynthetic process phosphorus metabolic process ribose phosphate biosynthetic process pyrimidine ribonucleotide metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process pyrimidine-containing compound metabolic process pyrimidine nucleoside triphosphate metabolic process nucleoside triphosphate biosynthetic process primary metabolic process nucleobase-containing compound biosynthetic process nucleotide metabolic process CTP metabolic process ribonucleoside triphosphate biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process pyrimidine ribonucleoside triphosphate metabolic process nucleoside triphosphate metabolic process pyrimidine nucleotide biosynthetic process pyrimidine ribonucleotide biosynthetic process cellular response to stimulus DNA repair-dependent chromatin remodeling cellular component organization cellular response to stress DNA damage response chromatin organization response to stress chromatin remodeling cellular component organization or biogenesis nucleobase biosynthetic process pyrimidine nucleobase biosynthetic process pyrimidine nucleobase metabolic process nucleobase metabolic process cell population proliferation B cell activation cell activation B cell proliferation lymphocyte activation leukocyte proliferation leukocyte activation mononuclear cell proliferation immune system process lymphocyte proliferation T cell activation T cell proliferation regulation of cellular component organization negative regulation of cellular component organization regulation of chromosome condensation chromosome organization regulation of chromosome organization regulation of organelle organization negative regulation of chromosome condensation organelle organization negative regulation of chromosome organization negative regulation of organelle organization chromosome condensation	cellular anatomical structure cytoophidium supramolecular fiber supramolecular polymer supramolecular complex membrane intracellular anatomical structure cytoplasm cytosol intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin cellular anatomical structure cytoophidium supramolecular fiber supramolecular polymer supramolecular complex membrane intracellular anatomical structure cytoplasm cytosol intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR029062	Class I glutamine amidotransferase-like	Homologous Superfamily
A, B, C, D	IPR004468	CTP synthase	Family
A, B, C, D	IPR017456	CTP synthase, N-terminal	Domain
A, B, C, D	IPR017926	Glutamine amidotransferase	Domain
A, B, C, D	IPR033828	CTP synthase GATase domain	Domain
A, B, C, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: P17812	severe combined immunodeficiency due to CTPS1 deficiency atrial fibrillation invasive ductal breast carcinoma medulloblastoma ovarian cancer psoriasis breast cancer large cell medulloblastoma nasopharyngeal carcinoma pancreatic ductal adenocarcinoma ductal breast carcinoma in situ lung cancer non-small cell lung carcinoma Pick disease ulcerative colitis

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.