1VAQ

Crystal structure of the Mg2+-(chromomycin A3)2-d(TTGGCCAA)2 complex reveals GGCC binding specificity of the drug dimer chelated by metal ion

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)	5'-D(*TP*TP*GP*GP*CP*CP*AP*A)-3'	polymer	8	2426.6	4		synthetic construct
2	E, F, I, K (E, F, I, K)	2,6-dideoxy-4-O-methyl-alpha-D-galactopyranose-(1-3)-(2R,3R,6R)-6-hydroxy-2-methyltetrahydro-2H-pyran-3-yl acetate	branched		318.4	4	In PDB GlyTouCan (G66610ZG)
3	G, H, J, L (G, H, J, L)	3-C-methyl-4-O-acetyl-alpha-L-Olivopyranose-(1-3)-(2R,5S,6R)-6-methyltetrahydro-2H-pyran-2,5-diol-(1-3)-(2R,5S,6R)-6-methyltetrahydro-2H-pyran-2,5-diol	branched		432.5	4	In PDB GlyTouCan (G76712GN)
4	M, Q (A, D)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
5	N, O, P, R (A, B, C, D)	(1S)-5-deoxy-1-O-methyl-1-C-[(2R,3S)-3,5,7,10-tetrahydroxy-6-methyl-4-oxo-1,2,3,4-tetrahydroanthracen-2-yl]-D-xylulose	non-polymer		420.4	4	Chemie (CPH)
6	S, T, U, V (A, B, C, D)	water	water		18.0	283	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	9706.5
Branched	Number of molecules	8
	Total formula weight	3003.5
Non-Polymers*	Number of molecules	6
	Total formula weight	1730.3
All*	Total formula weight	14440.2

*Water molecules are not included.