Threonine--tRNA ligase (thrS) Recombinant Protein | thrS recombinant protein

Recombinant Escherichia coli Threonine--tRNA ligase (thrS)

Cat. Num. AAA1219960

• Gene Names: thrS; ECK1717; JW1709
• Purity: Greater or equal to 85% purity as determined by SDS-PAGE.
• Synonyms: Threonine--tRNA ligase (thrS); Recombinant Escherichia coli Threonine--tRNA ligase (thrS); thrS recombinant protein

• Host: E Coli or Yeast or Baculovirus or Mammalian Cell
• Purity/Purification: Greater or equal to 85% purity as determined by SDS-PAGE.
• Form/Format: Lyophilized or liquid (Format to be determined during the manufacturing process)
• Sequence Positions: 1-642, full length protein
• Sequence: MPVITLPDGSQRHYDHAVSPMDVALDIGPGLAKACIAGRVNGELVDACDLIENDAQLSIITAKDEEGLEIIRHSCAHLLGHAIKQLWPHTKMAIGPVIDNGFYYDVDLDRTLTQEDVEALEKRMHELAEKNYDVIKKKVSWHEARETFANRGESYKVSILDENIAHDDKPGLYFHEEYVDMCRGPHVPNMRFCHHFKLMKTAGAYWRGDSNNKMLQRIYGTAWADKKALNAYLQRLEEAAKRDHRKIGKQLDLYHMQEEAPGMVFWHNDGWTIFRELEVFVRSKLKEYQYQEVKGPFMMDRVLWEKTGHWDNYKDAMFTTSSENREYCIKPMNCPGHVQIFNQGLKSYRDLPLRMAEFGSCHRNEPSGSLHGLMRVRGFTQDDAHIFCTEEQIRDEVNGCIRLVYDMYSTFGFEKIVVKLSTRPEKRIGSDEMWDRAEADLAVALEENNIPFEYQLGEGAFYGPKIEFTLYDCLDRAWQCGTVQLDFSLPSRLSASYVGEDNERKVPVMIHRAILGSMERFIGILTEEFAGFFPTWLAPVQVVIMNITDSQSEYVNELTQKLSNAGIRVKADLRNEKIGFKIREHTLRRVPYMLVCGDKEVESGKVAVRTRRGKDLGSMDVNEVIEKLQQEIRSRSLKQLEE
• Sequence Length: 642

• Species: Escherichia coli (strain K12)
• Preparation and Storage: Store at -20 degrees C. For long-term storage, store at -20 degrees C or -80 degrees C. Store working aliquots at 4 degrees C for up to one week. Repeated freezing and thawing is not recommended.

NCBI and Uniprot Product Information

• NCBI GI #: 16129675
• NCBI GeneID: 946222
• NCBI Accession #: NP_416234.1
• NCBI GenBank Nucleotide #: NC_000913.3
• UniProt Accession #: P0A8M3; P00955; P78166; P78241
• Molecular Weight: 74,014 Da
• NCBI Official Full Name: threonyl-tRNA synthetase
• NCBI Official Symbol: thrS
• NCBI Official Synonym Symbols: ECK1717; JW1709
• NCBI Protein Information: threonyl-tRNA synthetase
• UniProt Protein Name: Threonine--tRNA ligase
• Protein Family: Threonine--tRNA ligase
• UniProt Gene Name: thrS
• UniProt Synonym Gene Names: ThrRS

NCBI Description

Threonyl-tRNA synthetase (ThrRS) is a member of the family of aminoacyl-tRNA synthetases, which interpret the genetic code by covalently linking amino acids to their specific tRNA molecules. [More information is available at EcoCyc: EG11001].

Uniprot Description

Catalyzes the attachment of threonine to tRNA(Thr) in a two-step reaction: L-threonine is first activated by ATP to form Thr-AMP and then transferred to the acceptor end of tRNA(Thr) (PubMed:15079065, PubMed:10881191, PubMed:18997014). The rate-limiting step is amino acid activation in the presence of tRNA (PubMed:18997014). The 2'-OH of the acceptor base (adenine 76, A76) of tRNA(Thr) and His-309 collaborate to transfer L-Thr to the tRNA; substitution of 2'-OH of A76 with hydrogen or fluorine decreases transfer efficiency 760 and 100-fold respectively (PubMed:18997014). The zinc ion in the active site discriminates against charging of the isosteric amino acid valine (PubMed:10881191). Also activates L-serine, but does not detectably transfer it to tRNA(Thr) (PubMed:15079065). Edits incorrectly charged L-seryl-tRNA(Thr) via its editing domain (PubMed:15079065, PubMed:11136973, PubMed:15525511), in a post-transfer reaction probably via water-mediated hydrolysis (PubMed:15525511).