1I5Z

STRUCTURE OF CRP-CAMP AT 1.9 A

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	CATABOLITE GENE ACTIVATOR PROTEIN	polymer	209	23541.2	2	UniProt (P0ACJ8) Pfam (PF00027) Pfam (PF13545) In PDB	Escherichia coli	CAMP RECEPTOR PROTEIN, CRP, CAP
2	A	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	2	Chemie (TRS)
3	A, B	ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE	non-polymer		329.2	3	Chemie (CMP)
4		water	water		18.0	252	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	47082.5
Non-Polymers*	Number of molecules	5
	Total formula weight	1231.9
All*	Total formula weight	48314.4

*Water molecules are not included.