2LY7

B-flap domain of RNA polymerase (B. subtilis)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	DNA-directed RNA polymerase subunit beta	polymer	149	16679.6	1	UniProt (P37870) Pfam (PF00562) In PDB	Bacillus subtilis	RNAP subunit beta, RNA polymerase subunit beta, Transcriptase subunit beta

Sequence modifications

A: 2 - 141 (UniProt: P37870)

PDB	External Database	Details
Met 1	-	initiating methionine
Val 47	Ile 829	conflict
Gly 142	-	expression tag
Thr 143	-	expression tag
His 144	-	expression tag
His 145	-	expression tag
His 146	-	expression tag
His 147	-	expression tag
His 148	-	expression tag
His 149	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	16679.6
All*	Total formula weight	16679.6

*Water molecules are not included.