3VHQ

Crystal structure of the Ca6 site mutant of Pro-SA-subtilisin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Tk-subtilisin	polymer	398	41348.3	1	UniProt (P58502) Pfam (PF00082) In PDB	Thermococcus kodakarensis
2	A	CALCIUM ION	non-polymer		40.1	5	Chemie (CA)
3		water	water		18.0	263	Chemie (HOH)

Sequence modifications

A: 1 - 398 (UniProt: P58502)

PDB	External Database	Details
Ala 324	Ser 348	ENGINEERED MUTATION
Ala 372	Asp 396	ENGINEERED MUTATION

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	41348.3
Non-Polymers*	Number of molecules	5
	Total formula weight	200.4
All*	Total formula weight	41548.7

*Water molecules are not included.