7KHB

Escherichia coli RNA polymerase and rrnBP1 promoter open complex

Replaces:  6WR8

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	DNA-directed RNA polymerase subunit alpha	polymer	329	36558.7	2	UniProt (P0A7Z4) Pfam (PF01193) Pfam (PF01000) Pfam (PF03118)	Escherichia coli (strain K12)	RNAP subunit alpha,RNA polymerase subunit alpha,Transcriptase subunit alpha
2	C (C)	DNA-directed RNA polymerase subunit beta	polymer	1342	150820.9	1	UniProt (P0A8V2) Pfam (PF04560) Pfam (PF04563) Pfam (PF04561) Pfam (PF04565) Pfam (PF10385) Pfam (PF00562)	Escherichia coli (strain K12)	RNAP subunit beta,RNA polymerase subunit beta,Transcriptase subunit beta
3	D (D)	DNA-directed RNA polymerase subunit beta'	polymer	1407	155366.8	1	UniProt (P0A8T7) Pfam (PF04997) Pfam (PF00623) Pfam (PF04983) Pfam (PF05000) Pfam (PF04998)	Escherichia coli (strain K12)	RNAP subunit beta',RNA polymerase subunit beta',Transcriptase subunit beta'
4	E (E)	DNA-directed RNA polymerase subunit omega	polymer	91	10249.5	1	UniProt (P0A800) Pfam (PF01192)	Escherichia coli (strain K12)	RNAP omega subunit,RNA polymerase omega subunit,Transcriptase subunit omega
5	F (F)	RNA polymerase sigma factor RpoD	polymer	613	70352.2	1	UniProt (P00579) Pfam (PF03979) Pfam (PF00140) Pfam (PF04546) Pfam (PF04542) Pfam (PF04539) Pfam (PF04545)	Escherichia coli (strain K12)	Sigma-70
6	G (X)	DNA (60-MER)	polymer	64	19552.5	1		Escherichia coli K-12
7	H (Y)	DNA (64-MER)	polymer	64	19903.7	1		Escherichia coli K-12
8	I, J (C)	CHAPSO	non-polymer		631.9	2	Chemie (1N7)
9	K (D)	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
10	L, M (D)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	499363.1
Non-Polymers*	Number of molecules	5
	Total formula weight	1418.9
All*	Total formula weight	500782.0

*Water molecules are not included.