4KBJ

Structure of Mtb RNAP Beta subunit B1 and B2 domains

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 beta	polymer	409	46266.3	2	UniProt (P0A680) Pfam (PF04563) Pfam (PF04561) UniProt (by SIFTS) (P9WGY9)	Mycobacterium tuberculosis	RNAP subunit beta, RNA polymerase subunit beta, Transcriptase subunit beta
2	C, D (A, B)	water	water		18.0	128	Chemie (HOH)

Sequence modifications

A, B: 47 - 433 (UniProt: P0A680)

PDB	External Database	Details
Met -21	-	expression tag
Gly -20	-	expression tag
Ser -19	-	expression tag
Ser -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
Ser -11	-	expression tag
Ser -10	-	expression tag
Gly -9	-	expression tag
Leu -8	-	expression tag
Val -7	-	expression tag
Pro -6	-	expression tag
Arg -5	-	expression tag
Gly -4	-	expression tag
Ser -3	-	expression tag
His -2	-	expression tag
Met -1	-	expression tag
Met 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	92532.6
All*	Total formula weight	92532.6

*Water molecules are not included.