Q5ZUJ9 · SYA_LEGPH

Function

function

Catalyzes the attachment of alanine to tRNA(Ala) in a two-step reaction: alanine is first activated by ATP to form Ala-AMP and then transferred to the acceptor end of tRNA(Ala). Also edits incorrectly charged Ser-tRNA(Ala) and Gly-tRNA(Ala) via its editing domain.

Catalytic activity

Cofactor

Zn2+ (UniProtKB | Rhea| CHEBI:29105 )

Note: Binds 1 zinc ion per subunit.

Features

Showing features for binding site.

1860100200300400500600700800
TypeIDPosition(s)Description
Binding site553Zn2+ (UniProtKB | ChEBI)
Binding site557Zn2+ (UniProtKB | ChEBI)
Binding site655Zn2+ (UniProtKB | ChEBI)
Binding site659Zn2+ (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentcytoplasm
Molecular Functionalanine-tRNA ligase activity
Molecular FunctionATP binding
Molecular FunctiontRNA binding
Molecular Functionzinc ion binding
Biological Processalanyl-tRNA aminoacylation

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Alanine--tRNA ligase
  • EC number
  • Alternative names
    • Alanyl-tRNA synthetase
      (AlaRS
      )

Gene names

    • Name
      alaS
    • Ordered locus names
      lpg1799

Organism names

Accessions

  • Primary accession
    Q5ZUJ9

Proteomes

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00000751341-860Alanine--tRNA ligase

Proteomic databases

Interaction

Protein-protein interaction databases

Structure

Family & Domains

Domain

Consists of three domains; the N-terminal catalytic domain, the editing domain and the C-terminal C-Ala domain. The editing domain removes incorrectly charged amino acids, while the C-Ala domain, along with tRNA(Ala), serves as a bridge to cooperatively bring together the editing and aminoacylation centers thus stimulating deacylation of misacylated tRNAs.

Sequence similarities

Belongs to the class-II aminoacyl-tRNA synthetase family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    860
  • Mass (Da)
    96,258
  • Last updated
    2004-11-23 v1
  • Checksum
    AA8B140DE5F01D33
MKSSEIRQAFLNYFVQRGHQIVASSSLVPSNDPTLLFTNAGMVQFKDLFLGLETRSYQRAATAQRCVRAGGKHNDLENVGYTARHHTFFEMLGNFSFGDYFKREAIQYAWEFLTEVLHIPAERLWVTVYKEDLEAEDIWLKEMKVSPERFSRCGEKDNFWSMGDTGPCGPCTEIFYDHGPEVAGGPPGSPDEDGDRYIEIWNLVFMQFNRDREGHLHPLPKPSVDTGMGLERLAAVIQGVHSNYEIDSFQYLIKAIAQLGQDIDLNHTSLKVIADHIRSCSFLIVDGVLPSNEGRGYVLRRIIRRAVRHGNKLGLPSPFFSKLVQPLIDVMGDAYPELINSKAHIERILQQEENQFTRTLEQGLRLLQDHIKNLQGQELSGEVAFKLYDTYGFPIDLTADIIREQGLHIDMEAFNQLMQQQREQSQAASQFTTDYHAVSQLDHQSEFHGYEKESMEAKIIGLLQEGNEVKSINKGAKGAVILDHTPFYAESGGQVGDKGLLIGKEFTFQVDDTQKVGQAVVHYGKVIKGELTLDLLIHAQVDNIRRDAIRLNHTATHLLHAALKKIVGQHVQQRGSLVDAERARFDFSHFEALTPQQIQQIEEVVNAQIRANNEVITQVMDIESAKQSGAVALFGEKYSDAVRVLSMGDFSKELCGGTHARRTGDIGLFKIVAEYGIASGIRRIEMVTGRYALAWVNEQLGFMNNLAATLKTTPNSLQEKVSQLLLDNKNQEKMIAKLLSEKAQKSGADILGEIEEIKGINLLIKQLEGMDSQTMRHTMDQLKSRIDSAVIILFTIEQNKMNVIAGVSKNIIGKAPSAAQLVRHLCGKGGGRDDMAQGGGGVPEDLNSKIKEIKEMIEKI

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AE017354
EMBL· GenBank· DDBJ
AAU27878.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

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