4QFQ

Crystal structure of natvie Npu DnaE split intein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	DNA polymerase III, alpha subunit	polymer	111	12995.6	1	UniProt (B2J066) In PDB	Nostoc punctiforme
2	B	Nucleic acid binding, OB-fold, tRNA/helicase-type	polymer	37	4189.8	1	UniProt (B2J821) In PDB	Nostoc punctiforme
3		water	water		18.0	14	Chemie (HOH)

Sequence modifications

A: 1 - 102 (UniProt: B2J066)

PDB	External Database	Details
Leu 103	-	expression tag
Glu 104	-	expression tag
Gly 105	-	expression tag
His 106	-	expression tag
His 107	-	expression tag
His 108	-	expression tag
His 109	-	expression tag
His 110	-	expression tag
His 111	-	expression tag

B: 103 - 137 (UniProt: B2J821)

PDB	External Database	Details
Met 101	-	expression tag
Gly 102	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	17185.4
All*	Total formula weight	17185.4

*Water molecules are not included.