Protein
Proline--tRNA ligase
Organism
Plasmodium falciparum (isolate 3D7)
Function
Catalyzes the attachment of proline to tRNA(Pro) in a two-step reaction: proline is first activated by ATP to form Pro-AMP and then transferred to the acceptor end of tRNA(Pro) (By similarity). Functions in trans to edit the amino acid moiety from incorrectly charged Ala-tRNA(Pro). Has no activity on correctly charged Pro-tRNA(Pro) or Ala-tRNA(Ala).
Similarity
Belongs to the class-II aminoacyl-tRNA synthetase family. ProS type 3 subfamily.
Sequence
MNNNTNGEIIIPQEYLEKSECLFKELKELNINFKEVKHGLAATIKDLLEMNLENSTNILKNLFLKDKKKNYFLICTLNNKTVDLKNLSNILKTNNLRFVDENNLNNILNIQPGCLSPLAIKNDKENIVKLYFDEEIKNMQEVIIHPLHNYSSLYIKTQDVIKFCESFNHAPEYVQIKEDTTSKARVDKKEDVQEEMAKNEELQNNNNNNKNNSNSNNNNNNNNNHIKDTILKGKLLSNNEVEDNKSKDSNILGITSKKIENFSDWYTQVIVKSELIEYYDISGCYILRPAAYYIWECVQAFFNKEIKKLNVENSYFPLFVTKNKLEKEKNHIEGFSPEVAWVTKYGDSNLPEEIAIRPTSETIMYSVFPKWIRSYRDLPLKLNQWNTVVRWEFKQPTPFIRTREFLWQEGHTAHKNEEEAVKLVFDILDLYRRWYEEYLAVPIIKGIKSEGEKFGGANFTSTAEAFISENGRAIQAATSHYLGTNFAKMFKIEFEDENEVKQYVHQTSWGCTTRSIGIMIMTHGDDKGLVLPPNVSKYKVVIVPIFYKTTDENAIHSYCKDIEKILKNAQINCVYDDRASYSPGYKFNHWELRGIPIRIEVGPKDLQNNSCVIVRRDNNEKCNVKKESVLLETQQMLVDIHKNLFLKAKKKLDDSIVQVTSFSEVMNALNKKKMVLAPWCEDIATEEEIKKETQRLSLNQTNSETTLSGAMKPLCIPLDQPPMPPNMKCFWSGKPAKRWCLFGRSY