Protein
Aspartate--tRNA(Asp) ligase
Organism
Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)
Function
Catalyzes the attachment of L-aspartate to tRNA(Asp) in a two-step reaction: L-aspartate is first activated by ATP to form Asp-AMP and then transferred to the acceptor end of tRNA(Asp). Is specific for tRNA(Asp) since it cannot aspartylate tRNA(Asn).
Similarity
Belongs to the class-II aminoacyl-tRNA synthetase family. Type 1 subfamily.
Sequence
MMKRTSLIGQLGQAQQQQTVTLQGWVSRRRDLGGLIFLELRDRSGTVQVQVEPDSPAFAEADRLRAEYVAEIEGTFQPRPESQRKGGLADFEVIASRVKVLNAAKTPPFELDKGESVAEDIRLKYRYLDLRRPEMQRALMLRSKAVTAVTEFLDAEGFIQVETPMLTKSTPEGARDFLVPSRLNPGEFYALPQSPQLFKQLLMIAGFDRYYQLARCFRDEDLRADRQPDFTQLDMEMSFVEQDDVLEVQERLLAHVFRRVLDVELPLPFPRMSYFDAMDRYGSDKPDLRFDSAFTDVTGLFRGGEFAAFASAPSVKVLVAPELTRKQIDELERVAKQNGAGGLAWLRRDGEGFTGGISKFVGGIAPQLIEQTGVAQGGTLLFAAGEWKKAVTALGAVRLALRDLFDLAAGGPQFHVSWVVDFPQLEFDEDSQSWTYMHHPFTAPHPGDVALFGTERQGEMRAQAYDLVMNGFEIGGGSVRIHDPEVQAKMFQAIGFSEEAAREKFGFFLDALEYGTPPHGGIAWGFDRLLMLMSGAGSIREVIAFPKNNRGADLMAQAPSPVEDAQLAEVGVQVRGE