6XXQ

Crystal structure of spectinomycin adenyltransferase AAD(9) from Enterococcus faecialis with ATP and spectinomycin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Streptomycin 3''-adenylyltransferase	polymer	263	30873.4	2	UniProt (Q07448) Pfam (PF01909) Pfam (PF13427) In PDB	Enterococcus faecalis	AAD(9)
2	A, B	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
3	A, B	MAGNESIUM ION	non-polymer		24.3	3	Chemie (MG)
4	A, B	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	2	Chemie (ATP)
5	A, B	SPECTINOMYCIN	non-polymer		332.4	2	Chemie (SCM)
6		water	water		18.0	12	Chemie (HOH)

Sequence modifications

A, B: 1 - 255 (UniProt: Q07448)

PDB	External Database	Details
Lys 256	-	expression tag
Gly 257	-	expression tag
His 258	-	expression tag
His 259	-	expression tag
His 260	-	expression tag
His 261	-	expression tag
His 262	-	expression tag
His 263	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	61746.8
Non-Polymers*	Number of molecules	9
	Total formula weight	1798.0
All*	Total formula weight	63544.8

*Water molecules are not included.