3UGQ

Crystal structure of the apo form of the yeast mitochondrial threonyl-tRNA synthetase determined at 2.1 Angstrom resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Threonyl-tRNA synthetase, mitochondrial	polymer	460	53473.9	1	UniProt (P07236) Pfam (PF00587) Pfam (PF03129) In PDB	Saccharomyces cerevisiae (Baker's yeast)	Threonine--tRNA ligase, ThrRS
2	A	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
3	A	SULFATE ION	non-polymer		96.1	6	Chemie (SO4)
4	A	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)
5		water	water		18.0	310	Chemie (HOH)

Sequence modifications

A: 26 - 462 (UniProt: P07236)

PDB	External Database	Details
Met 3	-	expression tag
Gly 4	-	expression tag
Ser 5	-	expression tag
Ser 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag
His 9	-	expression tag
His 10	-	expression tag
His 11	-	expression tag
His 12	-	expression tag
Ser 13	-	expression tag
Ser 14	-	expression tag
Gly 15	-	expression tag
Leu 16	-	expression tag
Val 17	-	expression tag
Pro 18	-	expression tag
Arg 19	-	expression tag
Gly 20	-	expression tag
Ser 21	-	expression tag
His 22	-	expression tag
Met 23	-	expression tag
Ala 24	-	expression tag
Ser 25	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	53473.9
Non-Polymers*	Number of molecules	11
	Total formula weight	798.2
All*	Total formula weight	54272.1

*Water molecules are not included.