1B27

STRUCTURAL RESPONSE TO MUTATION AT A PROTEIN-PROTEIN INTERFACE

Replaces:  1BV0

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C	PROTEIN (BARNASE)	polymer	110	12398.7	3	UniProt (P00648) Pfam (PF00545) In PDB	Bacillus amyloliquefaciens
2	D, E, F	PROTEIN (BARSTAR)	polymer	90	10288.6	3	UniProt (P11540) Pfam (PF01337) In PDB	Bacillus amyloliquefaciens
3		water	water		18.0	512	Chemie (HOH)

Sequence modifications

D, E, F: 1 - 90 (UniProt: P11540)

PDB	External Database	Details
Met 1	-	SEE REMARK 999
Ala 26	Cys 39	engineered mutation
Ala 68	Cys 81	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	68062.0
All*	Total formula weight	68062.0

*Water molecules are not included.