1H4Y

Structure of the Anti-Sigma Factor Antagonist SpoIIAA in its Unphosphorylated Form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	ANTI-SIGMA F FACTOR ANTAGONIST	polymer	117	13093.2	2	Pfam (PF01740) UniProt (by SIFTS) (O32723) In PDB	BACILLUS SPHAERICUS	SPOIIAA
2		water	water		18.0	206	Chemie (HOH)

Sequence modifications

A, B: 1 - 117 (PDB: 1H4Y)

PDB	External Database	Details
Val 86	Met 86	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	26186.3
All*	Total formula weight	26186.3

*Water molecules are not included.