4NOI

2.17 Angstrom Crystal Structure of DNA-directed RNA Polymerase Subunit Alpha from Campylobacter jejuni.

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	361	40799.1	2	UniProt (Q9PM80) Pfam (PF01193) Pfam (PF01000) Pfam (PF03118)	Campylobacter jejuni subsp. jejuni	RNAP subunit alpha, RNA polymerase subunit alpha, Transcriptase subunit alpha
2	C (A)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
3	D, E, F, N (A, B)	IODIDE ION	non-polymer		126.9	4	Chemie (IOD)
4	G, H, I, J, K... (A, B)	CHLORIDE ION	non-polymer		35.5	12	Chemie (CL)
5	T, U (A, B)	water	water		18.0	217	Chemie (HOH)

Sequence modifications

A, B: 1 - 337 (UniProt: Q9PM80)

PDB	External Database	Details
Mse -23	-	expression tag
His -22	-	expression tag
His -21	-	expression tag
His -20	-	expression tag
His -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
Ser -16	-	expression tag
Ser -15	-	expression tag
Gly -14	-	expression tag
Val -13	-	expression tag
Asp -12	-	expression tag
Leu -11	-	expression tag
Gly -10	-	expression tag
Thr -9	-	expression tag
Glu -8	-	expression tag
Asn -7	-	expression tag
Leu -6	-	expression tag
Tyr -5	-	expression tag
Phe -4	-	expression tag
Gln -3	-	expression tag
Ser -2	-	expression tag
Asn -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	81598.2
Non-Polymers*	Number of molecules	17
	Total formula weight	956.0
All*	Total formula weight	82554.2

*Water molecules are not included.