2IH2

Crystal structure of the adenine-specific DNA methyltransferase M.TaqI complexed with the cofactor analog AETA and a 10 bp DNA containing 5-methylpyrimidin-2(1H)-one at the target base partner position

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B, E	5'-D(*GP*TP*TP*CP*GP*AP*TP*GP*TP*C)-3'	polymer	10	3051.0	2
2	C, F	5'-D(*GP*AP*CP*AP*(5PY)P*CP*GP*(6MA)P*AP*C)-3'	polymer	10	3036.0	2
3	A, D	Modification methylase TaqI	polymer	421	47931.2	2	UniProt (P14385) Pfam (PF07669) Pfam (PF12950) In PDB	Thermus aquaticus	Adenine-specific methyltransferase TaqI, M.TaqI
4	C, A, D	GLYCEROL	non-polymer		92.1	5	Chemie (GOL)
5	A, D	5'-DEOXY-5'-[2-(AMINO)ETHYLTHIO]ADENOSINE	non-polymer		326.4	2	Chemie (NEA)
6		water	water		18.0	1413	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	108036.5
Non-Polymers*	Number of molecules	7
	Total formula weight	1113.2
All*	Total formula weight	109149.7

*Water molecules are not included.