1V2I

Structure of the hemagglutinin-neuraminidase from human parainfluenza virus type III

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	hemagglutinin-neuraminidase glycoprotein	polymer	431	48107.7	2	GenBank (37958139) Pfam (PF00423) UniProt (by SIFTS) (Q6WJ03)	Human parainfluenza virus 3	hemagglutinin-neuraminidase, HN
2	C (C)	alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		910.8	1	In PDB GlyTouCan (G22768VO)
3	D, E (D, E)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	2	In PDB GlyTouCan (G42666HT)
4	F, G, J (A, B)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	3	Chemie (NAG)
5	H, K (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
6	I, L (A, B)	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
7	M, N (A, B)	water	water		18.0	372	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	96215.4
Branched	Number of molecules	3
	Total formula weight	1759.6
Non-Polymers*	Number of molecules	7
	Total formula weight	933.7
All*	Total formula weight	98908.8

*Water molecules are not included.