3AM1

Crystal structure of O-Phosphoseryl-tRNA kinase complexed with anticodon-stem/loop truncated tRNA(Sec)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	L-seryl-tRNA(Sec) kinase	polymer	260	31009.1	1	UniProt (Q58933) Pfam (PF08433) In PDB	Methanocaldococcus jannaschii (Methanococcus jannaschii)	O-phosphoseryl-tRNA(Sec) kinase, PSTK
2	B	ASL-truncated tRNA	polymer	81	26191.5	1
3	A	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	1	Chemie (ATP)
4	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
5		water	water		18.0	7	Chemie (HOH)

Sequence modifications

A: 5 - 252 (UniProt: Q58933)

PDB	External Database	Details
Met 1	-	expression tag
Gly 2	-	expression tag
Asp 3	-	expression tag
Ile 4	-	expression tag
Leu 253	-	expression tag
Glu 254	-	expression tag
His 255	-	expression tag
His 256	-	expression tag
His 257	-	expression tag
His 258	-	expression tag
His 259	-	expression tag
His 260	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	57200.7
Non-Polymers*	Number of molecules	2
	Total formula weight	531.5
All*	Total formula weight	57732.2

*Water molecules are not included.