NCBI Accession #
NP_001190732.1
NCBI GenBank Nucleotide #
NM_001203803.1
NCBI Official Full Name
O-acetylserine (thiol) lyase (OAS-TL) isoform A1
NCBI Official Symbol
OASA1
NCBI Official Synonym Symbols
ATCYS-3A; CYTACS1; DL3480C; FCAALL.34; O-ACETHYLSERINE SULFHYDRYLASE; O-acetylserine (thiol) lyase (OAS-TL) isoform A1; O-ACETYLSERINE (THIOL)LYASE; OLD3; ONSET OF LEAF DEATH 3
NCBI Protein Information
O-acetylserine (thiol) lyase (OAS-TL) isoform A1
NCBI Summary
Encodes a cytosolic isoform of cytosolic O-acetylserine(thiol)lyase, a key enzyme in cysteine biosynthesis and for the fixation of inorganic sulfide. It catalyzes the formation of cysteine from O-acetylserine and inorganic sulfide. Gene expression is predominant in the root cortex and the xylem parenchyma. Gene expression is induced in leave, stems and roots by high salt and heavy metal stresses, mediated by ABA. Lines carrying semi-dominant mutations exhibit early senescence. Required for pollen tube growth and/or fertilization.
UniProt Synonym Gene Names
OAS1; OASS; OLD3; ARAth-Bsas1;1; AtCS-A; OAS-TL A
UniProt Protein Name
Cysteine synthase 1
UniProt Synonym Protein Names
At.OAS.5-8; Beta-substituted Ala synthase 1;1; ARAth-Bsas1;1; CSase A; AtCS-A; Cys-3A; O-acetylserine (thiol)-lyase 1; OAS-TL A; O-acetylserine sulfhydrylase; Protein ONSET OF LEAF DEATH 3
UniProt Primary Accession #
P47998
UniProt Secondary Accession #
O23343; Q1EC56; Q42570; Q94AS7
UniProt Related Accession #
P47998
UniProt Comments
Acts as a major cysteine synthase, probably involved in maintaining organic sulfur level.