Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyNucleotidylyl transferase 8039578 3001541 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyAnticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases 8039576 3001786 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AtRNA-synt_1ge1a8hA1 A: alpha bundlesX: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases (From Topology)H: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases (From Topology)T: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetasesF: tRNA-synt_1gECOD (1.6)
AtRNA-synt_1ge1a8hA2 A: a/b three-layered sandwichesX: HUP domain-likeH: HUP domains (From Topology)T: HUP domainsF: tRNA-synt_1gECOD (1.6)
AtRNA-synt_1ge1a8hA3 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: tRNA-synt_1gECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.50.620 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold HUPsCATH (4.3.0)
A2.170.220.10 Mainly Beta Beta Complex Methionyl-trna Synthetase domain 2CATH (4.3.0)
A1.10.730.10 Mainly Alpha Orthogonal Bundle Isoleucyl-tRNA Synthetase Domain 1CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF09334tRNA synthetases class I (M) (tRNA-synt_1g)tRNA synthetases class I (M)- Family
PF19303Anticodon binding domain of methionyl tRNA ligase (Anticodon_3)Anticodon binding domain of methionyl tRNA ligaseThis domain is found in methionyl tRNA ligase. The domain binds to the anticodon of the tRNA ligase.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
METHIONYL-TRNA SYNTHETASE

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
Methionine--tRNA ligase  M-CSA #384

Methionine-tRNA ligase is an alpha 2 dimer which is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation.

This entry represents type 2a methionine-tRNA synthetase from eubacteria which links one zinc ion.

Defined by 8 residues: HIS:A-19HIS:A-22CYS:A-127CYS:A-130CYS:A-144HIS:A-147LYS:A-297LYS:A-300
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