1A74

I-PPOL HOMING ENDONUCLEASE/DNA COMPLEX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (C, D)	DNA (5'-D(*TP*TP*GP*AP*CP*TP*CP*TP*CP*TP*TP*AP*AP*GP*AP*GP*A P*GP*TP*CP*A)-3')	polymer	21	6437.2	2
2	C, D (A, B)	INTRON-ENCODED ENDONUCLEASE I-PPOI	polymer	163	17811.2	2	UniProt (Q94702) Pfam (PF05551)	Physarum polycephalum	INTRON-ENCODED ENDONUCLEASE I-PPOI
3	E, F, G, H (A, B)	ZINC ION	non-polymer		65.4	4	Chemie (ZN)		ZINC
4	I, J, K, L (C, D, A, B)	water	water		18.0	226	Chemie (HOH)		WATER

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	48496.9
Non-Polymers*	Number of molecules	4
	Total formula weight	261.6
All*	Total formula weight	48758.5

*Water molecules are not included.