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nifS1

Gene
NIFS1
Protein
Cysteine desulfurase, mitochondrial
Organism
Arabidopsis thaliana
Length
453 amino acids
Function
Catalyzes the removal of elemental sulfur from cysteine to produce alanine. Supplies the inorganic sulfur for iron-sulfur (Fe-S) clusters.
Similarity
Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. NifS/IscS subfamily.
Mass
50.296 kDa
Sequence
MASKVISATIRRTLTKPHGTFSRCRYLSTAAAATEVNYEDESIMMKGVRISGRPLYLDMQATTPIDPRVFDAMNASQIHEYGNPHSRTHLYGWEAENAVENARNQVAKLIEASPKEIVFVSGATEANNMAVKGVMHFYKDTKKHVITTQTEHKCVLDSCRHLQQEGFEVTYLPVKTDGLVDLEMLREAIRPDTGLVSIMAVNNEIGVVQPMEEIGMICKEHNVPFHTDAAQAIGKIPVDVKKWNVALMSMSAHKIYGPKGVGALYVRRRPRIRLEPLMNGGGQERGLRSGTGATQQIVGFGAACELAMKEMEYDEKWIKGLQERLLNGVREKLDGVVVNGSMDSRYVGNLNLSFAYVEGESLLMGLKEVAVSSGSACTSASLEPSYVLRALGVDEDMAHTSIRFGIGRFTTKEEIDKAVELTVKQVEKLREMSPLYEMVKEGIDIKNIQWSQH

Gene
nifS1
Protein
Cysteine desulfurase 1
Organism
Anabaena variabilis (strain ATCC 29413 / PCC 7937)
Length
400 amino acids
Function
Catalyzes the removal of elemental sulfur atoms from cysteine to produce alanine. Seems to participate in the biosynthesis of the nitrogenase metalloclusters by providing the inorganic sulfur required for the Fe-S core formation.
Similarity
Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. NifS/IscS subfamily.
Mass
43.685 kDa
Sequence
MSVIYLDNNATTKVDPEVVEAIMPYLTDYYGNPSSMHTFGGQLGKAVRTAREQVAALLGADESEIVFTSCGTEGDNAAIRAALLAQPEKRHIITTQVEHPAVLNVCKQLETQGYTVTYLSVNGHGQLDLDELEASLTGNTALVTIMYANNETGTVFPIEEIGKRVKERGAIFHVDAVQAVGKIPLNMKTSTIDMLTISGHKIHAPKGIGALYVRRGVRFRPLLIGGHQERGRRAGTENVPGIVGLGKAAELELIHIETAIKKETRLRDRLEQTLLAKIPDCEVNGDVTQRLPNTTNIGFKYIEGEAILLSLNKYGICASSGSACTSGSLEPSHVLRAMGLPYTTLHGSIRFSLCRYTTEAQIDRVIEVMPEIVERLRALSPFKNDEAGWLQAQEQTLAHR