3N4M

E. coli RNA polymerase alpha subunit C-terminal domain in complex with CAP and DNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Catabolite gene activator	polymer	209	23541.2	1	UniProt (P0ACJ8) Pfam (PF00027) Pfam (PF13545)	Escherichia coli	cAMP receptor protein, cAMP regulatory protein
2	B, C (B, C)	DNA-directed RNA polymerase subunit alpha	polymer	84	9364.8	2	UniProt (P0A7Z4) Pfam (PF03118)	Escherichia coli	RNAP subunit alpha, Transcriptase subunit alpha, RNA polymerase subunit alpha
3	D (D)	DNA (5'-D(*CP*TP*TP*TP*TP*TP*TP*CP*CP*TP*AP*AP*AP*AP*TP*GP*TP*GP*AP*T)-3')	polymer	20	6089.0	1
4	E (E)	DNA (5'-D(*CP*TP*AP*GP*AP*TP*CP*AP*CP*AP*TP*TP*TP*TP*AP*GP*GP*AP*AP*AP*AP*AP*AP*G)-3')	polymer	24	7409.8	1
5	F, I (A, D)	ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE	non-polymer		329.2	2	Chemie (CMP)
6	G, H (A)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	2	Chemie (PEG)
7	J, K, L (A, D, E)	water	water		18.0	35	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	55769.6
Non-Polymers*	Number of molecules	4
	Total formula weight	870.7
All*	Total formula weight	56640.3

*Water molecules are not included.