3CAE

Structure of NNQQNY as an insert in T7 endonuclease I

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, E...	Endonuclease I	polymer	132	15650.8	10	UniProt (P00641) Pfam (PF05367) In PDB	Enterobacteria phage T7	Endodeoxyribonuclease I, Endonuclease
2		water	water		18.0	15	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H, I, J: 18 - 43 (UniProt: P00641)

PDB	External Database	Details
Met 17	-	initiating methionine

A, B, C, D, E, F, G, H, I, J: 53 - 148 (UniProt: P00641)

PDB	External Database	Details
Ser 44	-	insertion
Asn 45	-	insertion
Asn 46	-	insertion
Gln 47	-	insertion
Gln 48	-	insertion
Asn 49	-	insertion
Tyr 50	-	insertion
Ser 51	-	insertion
Ser 52	-	insertion

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	156508.3
All*	Total formula weight	156508.3

*Water molecules are not included.