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Gene Gene information from NCBI Gene database.
Entrez ID 5009
Gene name Ornithine transcarbamylase
Gene symbol OTC
Synonyms (NCBI Gene)
OCTDOTC1OTCDOTCase
Chromosome X
Chromosome location Xp11.4
Summary This nuclear gene encodes a mitochondrial matrix enzyme. Missense, nonsense, and frameshift mutations in this enzyme lead to ornithine transcarbamylase deficiency, which causes hyperammonemia. Since the gene for this enzyme maps close to that for Duchenne
SNPs SNP information provided by dbSNP.
293 Show/Hide all (293)
SNP ID Visualize variation Clinical significance Consequence
rs1800324 T>C Pathogenic Coding sequence variant, missense variant
rs1800328 A>C,G Pathogenic, benign, benign-likely-benign Coding sequence variant, missense variant
rs66469337 T>C,G Pathogenic Coding sequence variant, missense variant, genic downstream transcript variant
rs66500027 G>A,T Pathogenic Splice donor variant
rs66512766 G>A,T Pathogenic Splice donor variant
miRNA miRNA information provided by mirtarbase database.
3
miRTarBase ID miRNA Experiments Reference
MIRT028822 hsa-miR-26b-5p Microarray 19088304
MIRT1207199 hsa-miR-144 CLIP-seq
MIRT1207200 hsa-miR-323-3p CLIP-seq
Transcription factors Transcription factors information provided by TRRUST V2 database.
1
Transcription factor Regulation Reference
PPARGC1A Activation 16891307
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
37 Show/Hide all (37)
GO ID Ontology Definition Evidence Reference
GO:0000050 Process Urea cycle IDA 2556444
GO:0000050 Process Urea cycle IEA
GO:0001889 Process Liver development IEA
GO:0004585 Function Ornithine carbamoyltransferase activity IBA
GO:0004585 Function Ornithine carbamoyltransferase activity IDA 2556444, 8112735
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
300461 8512 ENSG00000036473
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P00480
Protein name Ornithine transcarbamylase, mitochondrial (OTCase) (EC 2.1.3.3) (Ornithine carbamoyltransferase, mitochondrial)
Protein function Catalyzes the second step of the urea cycle, the condensation of carbamoyl phosphate with L-ornithine to form L-citrulline (PubMed:2556444, PubMed:6372096, PubMed:8112735). The urea cycle ensures the detoxification of ammonia by converting it to
PDB 1C9Y , 1EP9 , 1FVO , 1OTH
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00185 OTCace 187 → 341 Aspartate/ornithine carbamoyltransferase, Asp/Orn binding domain Domain
PF02729 OTCace_N 40 → 181 Aspartate/ornithine carbamoyltransferase, carbamoyl-P binding domain Domain
Tissue specificity TISSUE SPECIFICITY: Mainly expressed in liver and intestinal mucosa.
Sequence
Sequence length 354
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
KEGG Pathway Reactome Pathway
Arginine biosynthesis Mitochondrial protein import
Metabolic pathways Urea cycle
Biosynthesis of amino acids  
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
21
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Show/Hide Causal Diseases (9)
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Abnormal circulating ornithine concentration Pathogenic rs1555975756 RCV000626698
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Hyperammonemia Pathogenic rs1555975756 RCV000626698
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Likely inborn error of metabolism Pathogenic rs72558416 RCV005865235
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Nonpapillary renal cell carcinoma Pathogenic; Likely pathogenic rs72554330, rs66737144, rs72554359, rs66656800, rs281865554 RCV005887682
RCV005887683
RCV005887684
RCV005887685
RCV005887686
View all (1 more)
★★★★★
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Ornithine carbamoyltransferase deficiency Likely pathogenic; Pathogenic rs72558436, rs72558484, rs72558493, rs74518351, rs72554310, rs72554313, rs67939655, rs72554314, rs66521141, rs66677059, rs72554322, rs72554326, rs66693137, rs72554327, rs72554329
View all (174 more)
RCV001329969
RCV004595917
RCV005632228
RCV001064676
RCV001813756
View all (214 more)
★★★★★
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Show/Hide Unknown Diseases (12)
Phenotype Name Clinical Significance Source Reference Evidence Score
BRAIN DISEASES — CTD, Disgenet
CTD, Disgenet
8778603
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cervical cancer Benign ClinVar —
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cholangiocarcinoma Benign ClinVar —
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
COGNITION DISORDERS — CTD 8778603
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
DELIRIUM, DEMENTIA, AMNESTIC, COGNITIVE DISORDERS — Disgenet —
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Show/Hide Text Mining Associations (101)
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Acute lymphocytic leukemia Lymphocytic Leukemia BEFREE 29168171
★★★★★
★☆☆☆☆
Found in Text Mining only
Adult Acute Lymphocytic Leukemia Lymphocytic Leukemia BEFREE 29168171
★★★★★
★☆☆☆☆
Found in Text Mining only
Androgenetic Alopecia Androgenetic Alopecia BEFREE 30226287
★★★★★
★☆☆☆☆
Found in Text Mining only
Argininosuccinic Aciduria Argininosuccinic aciduria Pubtator 32410394 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only
Brain Diseases Brain disease Pubtator 25026867 Associate
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Brain Neoplasms Brain Neoplasms BEFREE 28969007
★★★★★
★☆☆☆☆
Found in Text Mining only
Carbamoyl-Phosphate Synthase I Deficiency Disease Carbamoyl Phosphate Synthase Deficiency BEFREE 29948653
★★★★★
★☆☆☆☆
Found in Text Mining only
Carcinoma Hepatocellular Hepatocellular carcinoma Pubtator 18715028, 24010702, 33856599 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only
Central Nervous System Diseases Central nervous system disease Pubtator 2342523 Associate
★★★★★
★☆☆☆☆
Found in Text Mining only
Childhood Acute Lymphoblastic Leukemia Lymphoblastic Leukemia BEFREE 29168171
★★★★★
★☆☆☆☆
Found in Text Mining only