2Z67

Crystal structure of archaeal O-phosphoseryl-tRNA(Sec) selenium transferase (SepSecS)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	O-phosphoseryl-tRNA(Sec) selenium transferase	polymer	456	51150.1	4	UniProt (Q6LZM9) Pfam (PF05889)	Methanococcus maripaludis	Selenocysteine synthase, Sec synthase, Selenocysteinyl-tRNASec, synthase, Sep-tRNA:Sec-tRNA synthase, SepSecS
2	E, F, H, J (A, B, C, D)	PYRIDOXAL-5'-PHOSPHATE	non-polymer		247.1	4	Chemie (PLP)
3	G, I (B, C)	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
4	K, L, M, N (A, B, C, D)	water	water		18.0	146	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 436 (UniProt: Q6LZM9)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	204600.4
Non-Polymers*	Number of molecules	6
	Total formula weight	1180.7
All*	Total formula weight	205781.1

*Water molecules are not included.