3UXU

The structure of the catalytic domain of the Sulfolobus Spindle-shaped viral integrase reveals an evolutionarily conserved catalytic core and supports a mechanism of DNA cleavage in trans

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Probable integrase	polymer	169	20021.2	1	UniProt (P20214) Pfam (PF16795) In PDB	Sulfolobus virus 1
2	A	PHOSPHATE ION	non-polymer		95.0	1	Chemie (PO4)
3		water	water		18.0	17	Chemie (HOH)

Sequence modifications

A: 173 - 335 (UniProt: P20214)

PDB	External Database	Details
Val 215	Ile 215	ENGINEERED MUTATION
Ala 307	Thr 307	ENGINEERED MUTATION
His 336	-	EXPRESSION TAG
His 337	-	EXPRESSION TAG
His 338	-	EXPRESSION TAG
His 339	-	EXPRESSION TAG
His 340	-	EXPRESSION TAG
His 341	-	EXPRESSION TAG

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	20021.2
Non-Polymers*	Number of molecules	1
	Total formula weight	95.0
All*	Total formula weight	20116.2

*Water molecules are not included.