5H7A

Crystal structure of a repeat protein with four Protein A repeat module

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	C, A, D, B, E...	Immunoglobulin G-binding protein A	polymer	192	21839.1	12	UniProt (P38507) Pfam (PF02216) In PDB	Staphylococcus aureus	IgG-binding protein A,Staphylococcal protein A
2		water	water		18.0	317	Chemie (HOH)

Sequence modifications

C, A, D, B, E, F, G, H, I, J, K, L: 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

C, A, D, B, E, F, G, H, I, J, K, L: 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

C, A, D, B, E, F, G, H, I, J, K, L: 128 - 172 (UniProt: P38507)

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

C, A, D, B, E, F, G, H, I, J, K, L: 173 - 221 (UniProt: P38507)

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

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	262069.1
All*	Total formula weight	262069.1

*Water molecules are not included.