1TLH

T4 AsiA bound to sigma70 region 4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	10 kDa anti-sigma factor	polymer	90	10604.0	1	UniProt (P32267) Pfam (PF09010) In PDB	Enterobacteria phage T4	Audrey Stevens' inhibitor, 10 kDa RNA polymerase-associated protein
2	B	RNA polymerase sigma factor rpoD	polymer	81	9320.6	1	UniProt (P00579) Pfam (PF04545) In PDB	Escherichia coli	Sigma-70

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	19924.6
All*	Total formula weight	19924.6

*Water molecules are not included.