4IP9

Structure of native human serum amyloid A1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Serum amyloid A-1 protein	polymer	111	12659.8	2	UniProt (P0DJI8) Pfam (PF00277) In PDB	Homo sapiens (human)	SAA, Amyloid protein A, Amyloid fibril protein AA, Serum amyloid protein A(2-104), Serum amyloid protein A(3-104), Serum amyloid protein A(2-103), Serum amyloid protein A(2-102), Serum amyloid protein A(4-101)
2	A, B	O-ACETALDEHYDYL-HEXAETHYLENE GLYCOL	non-polymer		324.4	6	Chemie (P4C)
3		water	water		18.0	6	Chemie (HOH)

Sequence modifications

A, B: 1 - 104 (UniProt: P0DJI8)

PDB	External Database	Details
Met -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	25319.5
Non-Polymers*	Number of molecules	6
	Total formula weight	1946.2
All*	Total formula weight	27265.7

*Water molecules are not included.