1IQ8

Crystal Structure of archaeosine tRNA-guanine transglycosylase from Pyrococcus horikoshii

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)	ARCHAEOSINE TRNA-GUANINE TRANSGLYCOSYLASE	polymer	582	66700.1	2	UniProt (O58843) Pfam (PF01702) Pfam (PF14809) Pfam (PF14810) Pfam (PF01472)	Pyrococcus horikoshii
2	C, E (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	D, F (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4	G, H (A, B)	water	water		18.0	291	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	133400.3
Non-Polymers*	Number of molecules	4
	Total formula weight	179.4
All*	Total formula weight	133579.7

*Water molecules are not included.