8GOJ

23-residues Heterotetramic Antiparallel Coiled-Coil Derived From LacI

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	Lac23ys_EE, an acidic mutant of LacI C-terminal tetramerization helix	polymer	23	2550.8	2		Escherichia coli
2	B, D (B, D)	Lac23ys_KK, a basic mutant of LacI C-terminal tetramerization helix	polymer	23	2551.0	2		Escherichia coli
3	E, F (C, D)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
4	G, H, I, J (A, B, C, D)	water	water		18.0	48	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	10203.6
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	10334.4

*Water molecules are not included.