3DXZ

Crystal structure of EcTrmB in complex with SAH

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	tRNA (guanine-N(7)-)-methyltransferase	polymer	218	24831.4	1	UniProt (P0A8I5) Pfam (PF02390) In PDB	Escherichia coli	tRNA(m7G46)-methyltransferase
2	A	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3	A	S-ADENOSYL-L-HOMOCYSTEINE	non-polymer		384.4	1	Chemie (SAH)
4	A	1,2-ETHANEDIOL	non-polymer		62.1	4	Chemie (EDO)
5		water	water		18.0	314	Chemie (HOH)

Sequence modifications

A: 33 - 239 (UniProt: P0A8I5)

PDB	External Database	Details
Met 30	-	expression tag
Gly 31	-	expression tag
Ser 32	-	expression tag
Leu 240	-	expression tag
Glu 241	-	expression tag
His 242	-	expression tag
His 243	-	expression tag
His 244	-	expression tag
His 245	-	expression tag
His 246	-	expression tag
His 247	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	24831.4
Non-Polymers*	Number of molecules	6
	Total formula weight	728.7
All*	Total formula weight	25560.1

*Water molecules are not included.