Gene Gene information from NCBI Gene database.
Entrez ID 27068
Gene name Inorganic pyrophosphatase 2
Gene symbol PPA2
Synonyms (NCBI Gene)
HSPC124SCFAISCFISID6-306
Chromosome 4
Chromosome location 4q24
Summary The protein encoded by this gene is localized to the mitochondrion, is highly similar to members of the inorganic pyrophosphatase (PPase) family, and contains the signature sequence essential for the catalytic activity of PPase. PPases catalyze the hydrol
SNPs SNP information provided by dbSNP.
9
SNP ID Visualize variation Clinical significance Consequence
rs138215926 G>A Pathogenic Missense variant, coding sequence variant
rs139076647 C>A,T Likely-pathogenic Missense variant, coding sequence variant, intron variant
rs146013446 C>T Likely-pathogenic, pathogenic Missense variant, intron variant, coding sequence variant
rs151331559 G>A,C,T Pathogenic, likely-pathogenic Coding sequence variant, missense variant, stop gained
rs546693824 G>A Pathogenic Missense variant, intron variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
112
miRTarBase ID miRNA Experiments Reference
MIRT016388 hsa-miR-193b-3p Proteomics 21512034
MIRT023639 hsa-miR-1-3p Proteomics 18668040
MIRT1251165 hsa-miR-4677-3p CLIP-seq
MIRT1251166 hsa-miR-4679 CLIP-seq
MIRT1251167 hsa-miR-3074-3p CLIP-seq
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
19
GO ID Ontology Definition Evidence Reference
GO:0000287 Function Magnesium ion binding IEA
GO:0004427 Function Inorganic diphosphate phosphatase activity IBA
GO:0004427 Function Inorganic diphosphate phosphatase activity IDA 27523597
GO:0004427 Function Inorganic diphosphate phosphatase activity IEA
GO:0004722 Function Protein serine/threonine phosphatase activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
609988 28883 ENSG00000138777
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q9H2U2
Protein name Inorganic pyrophosphatase 2, mitochondrial (EC 3.6.1.1) (Pyrophosphatase SID6-306) (Pyrophosphate phospho-hydrolase 2) (PPase 2)
Protein function Hydrolyzes inorganic pyrophosphate (PubMed:27523597). This activity is essential for correct regulation of mitochondrial membrane potential, and mitochondrial organization and function (PubMed:27523598). {ECO:0000269|PubMed:27523597, ECO:0000269
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00719 Pyrophosphatase 94 276 Inorganic pyrophosphatase Domain
Tissue specificity TISSUE SPECIFICITY: Detected in brain, gastric carcinoma, lung, ovary, skeletal muscle, umbilical cord blood and a cell line derived from kidney proximal tubule epithelium. {ECO:0000269|PubMed:15210126}.
Sequence
MSALLRLLRTGAPAAACLRLGTSAGTGSRRAMALYHTEERGQPCSQNYRLFFKNVTGHYI
SPFHDIPLKVNSKEENGIPMKKARNDEYENLFNMIVEIPRWTNAKMEIATKEPMNPIKQY
VKDGKLRYVANIFPYKGYIWNYGTLPQTWEDPHEKDKSTNCFGDNDPIDVCEIGSKILSC
GEVIHVKILGILALIDEGETDWKLIAINANDPEASKFHDIDDVKKFKPGYLEATLNWFRL
YKVPDGKPENQFAFNGEFKNKAFALEVIKSTHQCWK
ALLMKKCNGGAINCTNVQISDSPF
RCTQEEARSLVESVSSSPNKESNEEEQVWHFLGK
Sequence length 334
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Oxidative phosphorylation   Mitochondrial tRNA aminoacylation
Pyrophosphate hydrolysis
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
70
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Cardiovascular phenotype Likely pathogenic; Pathogenic rs146013446, rs371147281 RCV005404543
RCV005404223
Sudden cardiac failure, alcohol-induced Likely pathogenic; Pathogenic rs1723387280, rs752062224, rs146013446, rs139076647, rs138215926 RCV001638074
RCV001638070
RCV000412531
RCV005033928
RCV000412589
Sudden cardiac failure, infantile Likely pathogenic; Pathogenic rs1723387280, rs752062224, rs772083375, rs1057517678, rs146013446, rs1057517679, rs1057517680, rs139076647, rs138215926, rs546693824, rs1187924642 RCV001638073
RCV001638069
RCV000412514
RCV000412573
RCV000412629
RCV000412577
RCV000412661
RCV000412508
RCV002272221
RCV000412653
RCV001095794
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Gastric cancer Benign rs551515553 RCV005921367
Hepatocellular carcinoma Likely benign rs756455141 RCV005869869
Lung cancer Benign rs112044972 RCV005922123
Malignant tumor of esophagus Benign rs112044972 RCV005922122
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Breast Neoplasms Associate 26354892, 39176095
Cardiomyopathies Associate 31705601, 34400813, 38582264
Death Associate 31705601
Death Sudden Associate 31705601, 38582264
Death Sudden Cardiac Associate 27523598, 33028643, 34400813, 38582264
Disease Associate 38582264
Heart Arrest Associate 27523598, 37269378, 38582264
Heart Diseases Associate 34400813
Heart Failure Associate 34400813
Hypertension Associate 33028643