Argininosuccinate synthetase 1

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Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
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RefSeq (mRNA)

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RefSeq (protein)

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Argininosuccinate synthetase is an enzyme that in humans is encoded by the ASS1 gene.[1][2][3]

The protein encoded by this gene catalyzes the penultimate step of the arginine biosynthetic pathway. There are approximately 10 to 14 copies of this gene including the pseudogenes scattered across the human genome, among which the one located on chromosome 9 appears to be the only functional gene for argininosuccinate synthetase. Two transcript variants encoding the same protein have been found for this gene.[3]

Clinical significance

Mutations in the chromosome 9 copy of ASS cause citrullinemia.[1]

40% to 90%[4] of bladder cancers are deficient in argininosuccinate synthetase.[5][6][7]

References

  1. 1.0 1.1 Beaudet AL, O'Brien WE, Bock HG, Freytag SO, Su TS (Mar 1986). "The human argininosuccinate synthetase locus and citrullinemia". Adv Hum Genet. 15: 161–96, 291–2. PMID 3513483.
  2. Carritt B, Goldfarb PS, Hooper ML, Slack C (Jun 1977). "Chromosome assignment of a human gene for argininosuccinate synthetase expression in Chinese hamsterxhuman somatic cell hybrids". Exp Cell Res. 106 (1): 71–8. doi:10.1016/0014-4827(77)90242-7. PMID 852520.
  3. 3.0 3.1 "Entrez Gene: ASS1 argininosuccinate synthetase 1".
  4. Novel Bladder Cancer Therapy Based on Arginine Deprivation Shows Promising Results
  5. Novel Approach to Bladder Cancer Chemotherapy Based on Arginine Depletion
  6. Frequent ASS1 deficiency in bladder cancer and sensitivity to pegylated arginine deiminase (ADI-PEG20): A potential novel therapeutic strategy
  7. Prognostic and therapeutic impact of argininosuccinate synthetase 1 control in bladder cancer as monitored longitudinally by PET imaging.

Further reading

External links