2A3Y

Pentameric crystal structure of human serum amyloid P-component bound to Bis-1,2-{[(Z)-2carboxy-2-methyl-1,3-dioxane]-5-yloxycarbamoyl}-ethane.

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, E (A, B, C, D, E)	Serum amyloid P-component	polymer	204	23282.5	5	UniProt (P02743) Pfam (PF00354)	Homo sapiens (human)	SAP, 9.5S alpha-1-glycoprotein
2	F, G, I, J, L... (A, B, C, D, E)	CALCIUM ION	non-polymer		40.1	10	Chemie (CA)
3	H, K, N, Q, T (A, B, C, D, E)	BIS-1,2-{[(Z)-2-CARBOXY-2-METHYL-1,3-DIOXANE]-5-YLOXYCARBAMOYL}-ETHANE	non-polymer		436.4	5	Chemie (CPJ)
4	U, V, W, X, Y (A, B, C, D, E)	water	water		18.0	478	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	116412.3
Non-Polymers*	Number of molecules	15
	Total formula weight	2582.6
All*	Total formula weight	118994.9

*Water molecules are not included.