3QQO

Crystal structure of HA2 R106H mutant of H2 hemagglutinin, acidic pH form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C, E (A, C, E)	Hemagglutinin	polymer	327	36504.2	3	UniProt (C7S226) Pfam (PF00509)	Influenza A virus
2	B, D, F (B, D, F)	Hemagglutinin	polymer	174	20120.2	3	UniProt (C7S226) Pfam (PF00509)	Influenza A virus
3	G, H, I (A, C)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	3	Chemie (NAG)
4	J, K, L, M, N... (A, B, C, D, E...)	water	water		18.0	56	Chemie (HOH)

Sequence modifications

A, C, E: 10 - 329 (UniProt: C7S226)

PDB	External Database	Details
Pro 9	-	expression tag

B, D, F: 1 - 174 (UniProt: C7S226)

PDB	External Database	Details
His 106	Arg 446	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	169873.4
Non-Polymers*	Number of molecules	3
	Total formula weight	663.6
All*	Total formula weight	170537.0

*Water molecules are not included.