4K1J

Induced opening of influenza virus neuraminidase N2 150-loop suggests an important role in inhibitor binding

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Neuraminidase	polymer	388	42996.7	2	UniProt (Q194T1) Pfam (PF00064) In PDB	Influenza A virus
2	C, 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)
3	D, F	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		748.7	2	In PDB GlyTouCan (G81315DD)
4	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
5	A, B	(3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid	non-polymer		284.4	2	Chemie (G39)
6		water	water		18.0	765	Chemie (HOH)

Sequence modifications

A, B: 82 - 469 (UniProt: Q194T1)

PDB	External Database	Details
Gly 147	Asp 147	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	85993.5
Branched	Number of molecules	4
	Total formula weight	2346.2
Non-Polymers*	Number of molecules	4
	Total formula weight	648.9
All*	Total formula weight	88988.5

*Water molecules are not included.