6HGB

Influenza A virus N6 neuraminidase native structure (Duck/England/56).

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	Neuraminidase	polymer	389	43011.5	4	UniProt (Q6XV27) Pfam (PF00064) In PDB	Influenza A virus (strain A/Duck/England/1/1956 H11N6)
2	E, F, H, J, K...	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	6	In PDB GlyTouCan (G42666HT)
3	G	alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]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		1397.2	1	In PDB GlyTouCan (G80966KZ)
4	I	alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		1235.1	1	In PDB GlyTouCan (G55220VL)
5	L, M	alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]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		1073.0	2	In PDB GlyTouCan (G94106MV)
6	B, D, A, C	GLYCEROL	non-polymer		92.1	25	Chemie (GOL)
7	B, D, A, C	CALCIUM ION	non-polymer		40.1	4	Chemie (CA)
8	B, A	PHOSPHATE ION	non-polymer		95.0	3	Chemie (PO4)
9	C, B, D, A	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	19	Chemie (PEG)
10	D, B	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	2	Chemie (NAG)
11		water	water		18.0	1587	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	172046.1
Branched	Number of molecules	10
	Total formula weight	7324.7
Non-Polymers*	Number of molecules	53
	Total formula weight	5206.3
All*	Total formula weight	184577.1

*Water molecules are not included.