3RT3

Complex of influenza virus protein with host anti-viral factor

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B	Ubiquitin-like protein ISG15	polymer	159	17361.9	1	UniProt (P05161) Pfam (PF00240) In PDB	Homo sapiens (human)	Interferon-induced 15 kDa protein, Interferon-induced 17 kDa protein, IP17, Ubiquitin cross-reactive protein, hUCRP
2	C	Non-structural protein 1	polymer	109	12710.5	1	UniProt (P03502) Pfam (PF02942) In PDB	Influenza B virus	NS1, NS1B
3	B	SUCCINIC ACID	non-polymer		118.1	2	Chemie (SIN)
4		water	water		18.0	85	Chemie (HOH)

Sequence modifications

B: 1 - 158 (UniProt: P05161)

PDB	External Database	Details
Ser 78	Cys 78	engineered mutation
Arg 159	-	expression tag

C: 1 - 103 (UniProt: P03502)

PDB	External Database	Details
His 104	-	expression tag
His 105	-	expression tag
His 106	-	expression tag
His 107	-	expression tag
His 108	-	expression tag
His 109	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	30072.4
Non-Polymers*	Number of molecules	2
	Total formula weight	236.2
All*	Total formula weight	30308.6

*Water molecules are not included.