1P8K

The structure and DNA recognition of a bifunctional homing endonuclease and group I intron splicing factor

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	5'-D(P*GP*CP*GP*CP*GP*CP*TP*GP*AP*GP*GP*AP*GP*GP*TP*TP*TP*C)-3'	polymer	18	5588.6	1
2	B	5'-D(P*TP*CP*TP*GP*TP*AP*AP*AP*GP*CP*GP*CP*A)-3'	polymer	13	3975.6	1
3	C	5'-D(P*GP*CP*GP*CP*TP*TP*TP*AP*CP*AP*GP*AP*GP*AP*AP*A)-3'	polymer	16	4931.2	1
4	D	5'-D(P*CP*CP*TP*CP*CP*TP*CP*AP*GP*CP*GP*CP*GP*CP*T)-3'	polymer	15	4481.9	1
5	Z	Intron-encoded endonuclease I-AniI	polymer	254	29615.2	1	UniProt (P03880) Pfam (PF00961) In PDB	Emericella nidulans	mRNA maturase BI1, COB intron protein
6	B, Z	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)

Sequence modifications

Z: 3 - 254 (UniProt: P03880)

PDB	External Database	Details
Gly 1	-	CLONING ARTIFACT
Ser 2	-	CLONING ARTIFACT
Arg 61	Ile 126	SEE REMARK 999
Mse 66	Met 131	MODIFIED RESIDUE
Mse 90	Met 155	MODIFIED RESIDUE

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	48592.5
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	48641.1

*Water molecules are not included.