6ONO

Complex structure of WhiB1 and region 4 of SigA in C2221 space group

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Transcription regulator WhiB1	polymer	76	8553.3	2	UniProt (P9WF43) Pfam (PF02467) In PDB	Mycobacterium tuberculosis H37Rv	Iron-sulfur cluster protein WhiB1
2	B, D	RNA polymerase sigma factor SigA	polymer	120	13686.9	2	UniProt (P9WGI1) Pfam (PF04539) Pfam (PF04545) In PDB	Mycobacterium tuberculosis H37Rv	Sigma-A
3	A, C	IRON/SULFUR CLUSTER	non-polymer		351.6	2	Chemie (SF4)
4	A	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	2	Chemie (PEG)
5		water	water		18.0	235	Chemie (HOH)

Sequence modifications

B, D: 417 - 528 (UniProt: P9WGI1)

PDB	External Database	Details
Mse 409	-	expression tag
Ala 410	-	expression tag
His 411	-	expression tag
His 412	-	expression tag
His 413	-	expression tag
His 414	-	expression tag
His 415	-	expression tag
His 416	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	44480.4
Non-Polymers*	Number of molecules	4
	Total formula weight	915.5
All*	Total formula weight	45395.9

*Water molecules are not included.