3CP7

Crystal structure of a thermostable serine protease AL20 from extremophilic microoganism

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	alkaline serine protease AL20	polymer	218	22946.5	2	Pfam (PF13365) UniProt (by SIFTS) (D0VWT7) In PDB	Nesterenkonia abyssinica
2	A, B	FORMIC ACID	non-polymer		46.0	2	Chemie (FMT)
3		water	water		18.0	657	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	45893.1
Non-Polymers*	Number of molecules	2
	Total formula weight	92.0
All*	Total formula weight	45985.1

*Water molecules are not included.