7LQ3

Evolution of a sigma-(c-di-GMP)-antisigma switch

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B, A, D	RsiG	polymer	85	9750.3	3	UniProt (A0A023X3Z4) Pfam (PF22802) In PDB	Rubrobacter radiotolerans
2	B, D	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
3	B, A	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4		water	water		18.0	10	Chemie (HOH)

Sequence modifications

B, A, D: 26 - 106 (UniProt: A0A023X3Z4)

PDB	External Database	Details
Gly 22	-	expression tag
Ser 23	-	expression tag
His 24	-	expression tag
Mse 25	-	expression tag
Mse 52	Leu 52	engineered mutation
Mse 69	Ile 69	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	29251.0
Non-Polymers*	Number of molecules	4
	Total formula weight	240.7
All*	Total formula weight	29491.7

*Water molecules are not included.