1MPE

Ensemble of 20 structures of the tetrameric mutant of the B1 domain of streptococcal protein G

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, D	Immunoglobulin G binding protein G	polymer	56	6302.9	4	UniProt (P06654) Pfam (PF01378) In PDB	Streptococcus sp. 'group G'	IgG binding protein G

Sequence modifications

A, B, C, D: 2 - 56 (UniProt: P06654)

PDB	External Database	Details
Met 1	-	initiating methionine
Gln 2	Thr 228	engineered mutation
Val 5	Leu 231	engineered mutation
Phe 26	Ala 252	engineered mutation
Val 30	Phe 256	engineered mutation
Phe 33	Tyr 259	engineered mutation
Phe 34	Ala 260	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	25211.7
All*	Total formula weight	25211.7

*Water molecules are not included.