Lineage for Species: Pyrococcus abyssi [TaxId: 29292]

1. Root: SCOPe 2.08

2. Class g: Small proteins [56992] (100 folds)

3. Fold g.41: Rubredoxin-like [57769] (17 superfamilies) metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2

4. Superfamily g.41.1: Methionyl-tRNA synthetase (MetRS), Zn-domain [57770] (1 family)

5. Family g.41.1.1: Methionyl-tRNA synthetase (MetRS), Zn-domain [57771] (1 protein) in the Pyrococcus abyssi MetRS structure there is a tandem repeat of two such domains swapped with their zinc-binding 'knuckles', this duplicated finger occupies a larger region (124-183) than defined below; there is a structurally equivalent region in the E. coli enzyme lacking the second zinc-binding site

6. Protein Methionyl-tRNA synthetase (MetRS), Zn-domain [57772] (2 species)

7. Species Pyrococcus abyssi [TaxId:29292] [111451] (1 PDB entry) Uniprot Q9V011 1-606; C-domain 616-722 is solved separately: 1MKH