8D5V

WhiB6 bound to the SigmaAr4-RNAP Beta flap tip chimera

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Probable transcriptional regulator WhiB6	polymer	116	12807.4	2	UniProt (P9WF37) Pfam (PF02467) In PDB	Mycobacterium tuberculosis
2	B, D	RNA polymerase sigma factor SigA,DNA-directed RNA polymerase subunit beta	polymer	112	12650.2	2	UniProt (P9WGI1) UniProt (P9WGY9) Pfam (PF04545) In PDB	Mycobacterium tuberculosis H37Rv	Sigma-A,RNAP subunit beta,RNA polymerase subunit beta,Transcriptase subunit beta
3	A, C	IRON/SULFUR CLUSTER	non-polymer		351.6	2	Chemie (SF4)
4		water	water		18.0	137	Chemie (HOH)

Sequence modifications

B, D: 446 - 528 (UniProt: P9WGI1)

PDB	External Database	Details
Met 438	-	expression tag
Ala 439	-	expression tag
His 440	-	expression tag
His 441	-	expression tag
His 442	-	expression tag
His 443	-	expression tag
His 444	-	expression tag
His 445	-	expression tag
Gly 529	-	linker
Ser 530	-	linker
Ser 531	-	linker
Gly 532	-	linker
Ser 533	-	linker
Gly 534	-	linker

B, D: 535 - 549 (UniProt: P9WGY9)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	50915.3
Non-Polymers*	Number of molecules	2
	Total formula weight	703.3
All*	Total formula weight	51618.6

*Water molecules are not included.