2ISZ

Crystal structure of a two-domain IdeR-DNA complex crystal form I

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (E)	mbtA/mbtB operator strand 1	polymer	33	10112.5	1
2	B (F)	mbtA/mbtB operator strand 2	polymer	33	10188.6	1
3	C, D, E, F (A, B, C, D)	Iron-dependent repressor ideR	polymer	157	17855.3	4	UniProt (P0A672) Pfam (PF01325) Pfam (PF02742) UniProt (by SIFTS) (P9WMH1)	Mycobacterium tuberculosis
4	G, H, I, K, L... (A, B, C, D)	NICKEL (II) ION	non-polymer		58.7	12	Chemie (NI)
5	J, Q, U (A, C, D)	SODIUM ION	non-polymer		23.0	3	Chemie (NA)
6	AA, V, W, X, Y... (D, E, F, A, B...)	water	water		18.0	142	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 140 (UniProt: P0A672)

PDB	External Database	Details
Ala 141	-	expression tag
Ser 142	-	expression tag
Glu 143	-	expression tag
Asn 144	-	expression tag
Leu 145	-	expression tag
Tyr 146	-	expression tag
Phe 147	-	expression tag
Gln 148	-	expression tag
Gly 149	-	expression tag
Gly 150	-	expression tag
Gly 151	-	expression tag
His 152	-	expression tag
His 153	-	expression tag
His 154	-	expression tag
His 155	-	expression tag
His 156	-	expression tag
His 157	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	91722.1
Non-Polymers*	Number of molecules	15
	Total formula weight	773.3
All*	Total formula weight	92495.4

*Water molecules are not included.