1TFW

How CCA is added to the 3' end of immature tRNA without the use of an oligonucleotide template

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	E	5'-R(*GP*CP*GP*GP*AP*UP*CP*CP*GP*CP*AP*C)-3'	polymer	12	3826.4	1
2	H, I, G	5'-R(*GP*CP*GP*GP*AP*UP*CP*CP*GP*CP*AP*CP*C)-3'	polymer	13	4131.5	3
3	F	5'-R(*GP*CP*GP*GP*AP*CP*CP*CP*GP*CP*AP*C)-3'	polymer	12	3825.4	1
4	J	5'-R(*CP*GP*CP*GP*GP*AP*UP*CP*CP*GP*CP*AP*C)-3'	polymer	13	4131.5	1
5	A, B, C, D	tRNA nucleotidyltransferase	polymer	437	51469.1	4	UniProt (O28126) Pfam (PF01909) Pfam (PF09249) Pfam (PF21133) In PDB	Archaeoglobus fulgidus	tRNA adenylyltransferase, tRNA CCA-pyrophosphorylase, CCA-adding enzyme
6	B, D	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
7	B, D	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	2	Chemie (ATP)
8		water	water		18.0	1059	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	230054.4
Non-Polymers*	Number of molecules	4
	Total formula weight	1063.0
All*	Total formula weight	231117.4

*Water molecules are not included.