4P2B

Crystal structure of the apo form of the glutaminyl-tRNA synthetase catalytic domain from Toxoplasma gondii.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Glutamine aminoacyl-tRNA synthetase	polymer	576	66413.2	1	UniProt (D3XAP9) Pfam (PF00749) Pfam (PF03950) Pfam (PF20974) UniProt (by SIFTS) (B6KTZ0)	Toxoplasma gondii
2	B, C (A)	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)

Sequence modifications

A: 22 - 576 (UniProt: D3XAP9)

PDB	External Database	Details
Met 1	-	initiating methionine
Gly 2	-	expression tag
Ser 3	-	expression tag
Ser 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag
His 9	-	expression tag
His 10	-	expression tag
Ser 11	-	expression tag
Ser 12	-	expression tag
Gly 13	-	expression tag
Leu 14	-	expression tag
Val 15	-	expression tag
Pro 16	-	expression tag
Arg 17	-	expression tag
Gly 18	-	expression tag
Ser 19	-	expression tag
His 20	-	expression tag
Met 21	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	66413.2
Non-Polymers*	Number of molecules	2
	Total formula weight	192.1
All*	Total formula weight	66605.3

*Water molecules are not included.