3MLH

Crystal structure of the 2009 H1N1 influenza virus hemagglutinin receptor-binding domain

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	polymer	235	26414.4	2	UniProt (C4RSQ3) Pfam (PF00509)	Influenza A virus
2	C, D, E, F, G... (A, B)	GLYCEROL	non-polymer		92.1	6	Chemie (GOL)
3	I, J (A, B)	water	water		18.0	193	Chemie (HOH)

Sequence modifications

A, B: 55 - 271 (UniProt: C4RSQ3)

PDB	External Database	Details
His 44	-	expression tag
His 45	-	expression tag
His 46	-	expression tag
His 47	-	expression tag
His 48	-	expression tag
His 49	-	expression tag
Asp 50	-	expression tag
Asp 51	-	expression tag
Asp 52	-	expression tag
Asp 53	-	expression tag
Lys 54	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	52828.8
Non-Polymers*	Number of molecules	6
	Total formula weight	552.6
All*	Total formula weight	53381.4

*Water molecules are not included.