2IMZ

Crystal structure of Mtu recA intein splicing domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Endonuclease PI-MtuI	polymer	168	18651.1	2	UniProt (P0A5U4) Pfam (PF14890) UniProt (by SIFTS) (P9WHJ3)	Mycobacterium tuberculosis
2	C, D (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	E, F (A, B)	water	water		18.0	334	Chemie (HOH)

Sequence modifications

A, B: 2 - 110 (UniProt: P0A5U4)

PDB	External Database	Details
Csd 1	Cys 252	SEE REMARK 999
Leu 67	Val 318	engineered mutation

A, B: 383 - 440 (UniProt: P0A5U4)

PDB	External Database	Details
Snn 440	Asn 691	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	37302.3
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	37433.1

*Water molecules are not included.