Catalyzes the removal of elemental sulfur from cysteine to produce alanine (Probable). Participates in the biosynthesis of metalloclusters by providing the inorganic sulfur required for Fe-S core formation. One acceptor is Whib3, on which this enzyme assembles a 4Fe-4S cluster. It can use both L-cysteine and L-selenocysteine as substrates.

Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. NifS/IscS subfamily.

393 amino acids

MAYLDHAATTPMHPAAIEAMAAVQRTIGNASSLHTSGRSARRRIEEARELIADKLGARPSEVIFTAGGTESDNLAVKGIYWARRDAEPHRRRIVTTEVEHHAVLDSVNWLVEHEGAHVTWLPTAADGSVSATALREALQSHDDVALVSVMWANNEVGTILPIAEMSVVAMEFGVPMHSDAIQAVGQLPLDFGASGLSAMSVAGHKFGGPPGVGALLLRRDVTCVPLMHGGGQERDIRSGTPDVASAVGMATAAQIAVDGLEENSARLRLLRDRLVEGVLAEIDDVCLNGADDPMRLAGNAHFTFRGCEGDALLMLLDANGIECSTGSACTAGVAQPSHVLIAMGVDAASARGSLRLSLGHTSVEADVDAALEVLPGAVARARRAALAAAGASR

40.9 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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