5H7B

Crystal structure of a repeat protein with five Protein A repeat modules

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Immunoglobulin G-binding protein A	polymer	237	26966.8	2	UniProt (P38507) Pfam (PF02216) In PDB	Staphylococcus aureus	IgG-binding protein A,Staphylococcal protein A

Sequence modifications

A, B: 34 - 82 (UniProt: P38507)

PDB	External Database	Details
Gly 30	-	expression tag
Ser 31	-	expression tag
His 32	-	expression tag
Met 33	-	expression tag
Ala 59	Gly 240	engineered mutation

A, B: 83 - 127 (UniProt: P38507)

PDB	External Database	Details
Ala 86	Asn 222	engineered mutation
Ser 93	His 229	engineered mutation
Ala 104	Gly 240	engineered mutation

A, B: 128 - 172 (UniProt: P38507)

PDB	External Database	Details
Ala 131	Asn 222	engineered mutation
Ala 149	Gly 240	engineered mutation

A, B: 173 - 217 (UniProt: P38507)

PDB	External Database	Details
Ala 176	Asn 222	engineered mutation
Ala 194	Gly 240	engineered mutation

A, B: 218 - 266 (UniProt: P38507)

PDB	External Database	Details
Ala 221	Asn 222	engineered mutation
Ala 239	Gly 240	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	53933.5
All*	Total formula weight	53933.5

*Water molecules are not included.