4N5J

Crystal structure of hemagglutinin from an H7N9 influenza virus

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Hemagglutinin HA1	polymer	321	34993.6	2	UniProt (R4NN21) Pfam (PF00509) In PDB	Influenza A virus
2	B, D	Hemagglutinin HA2	polymer	183	21081.2	2	UniProt (R4NN21) Pfam (PF00509) In PDB	Influenza A virus
3	E	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		586.5	1	In PDB GlyTouCan (G15407YE)
4	A, B	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	2	Chemie (NAG)
5		water	water		18.0	59	Chemie (HOH)

Sequence modifications

B, D: 1 - 176 (UniProt: R4NN21)

PDB	External Database	Details
Ser 177	-	expression tag
Gly 178	-	expression tag
Arg 179	-	expression tag
Leu 180	-	expression tag
Val 181	-	expression tag
Pro 182	-	expression tag
Arg 183	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	112149.5
Branched	Number of molecules	1
	Total formula weight	586.5
Non-Polymers*	Number of molecules	2
	Total formula weight	442.4
All*	Total formula weight	113178.5

*Water molecules are not included.