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 (A)	tRNA (guanine-N(7)-)-methyltransferase	polymer	218	24831.4	1	UniProt (P0A8I5) Pfam (PF02390)	Escherichia coli	tRNA(m7G46)-methyltransferase
2	B (A)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3	C (A)	S-ADENOSYL-L-HOMOCYSTEINE	non-polymer		384.4	1	Chemie (SAH) PubChem (193) PubChem (13792) PubChem (189149) PubChem (439155) PubChem (5284331) PubChem (71170554) PubChem (13231890) PubChem (16760024) PubChem (25210495) PubChem (44361184) PubChem (177678424) PubChem (46936206) PubChem (21125603) PubChem (25203782) PubChem (52224400) PubChem (50989525) PubChem (51380914) PubChem (52224398) PubChem (6419189) PubChem (57544532) PubChem (59046843) PubChem (59170628) PubChem (164157219) PubChem (59576228) PubChem (66805708) PubChem (70689219) PubChem (70702054) PubChem (70832431) PubChem (118374891) PubChem (118560068) PubChem (126969526) PubChem (129105892) PubChem (143518505) PubChem (154578335) PubChem (163054214) PubChem (163335525)
4	D, E, F, G (A)	1,2-ETHANEDIOL	non-polymer		62.1	4	Chemie (EDO)
5	H (A)	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.