Crystal Structure of the Human CCA-adding Enzyme: Insights into Template-independent Polymerization
Augustin, M.A., Reichert, A.S., Betat, H., Huber, R., Moerl, M., Steegborn, C.(2003) J Mol Biol 328: 985-994
- PubMed: 12729736 
- DOI: 10.1016/s0022-2836(03)00381-4
- Primary Citation of Related Structures:  
1OU5 - PubMed Abstract: 
All tRNA molecules carry the invariant sequence CCA at their 3'-terminus for amino acid attachment. The post-transcriptional addition of CCA is carried out by ATP(CTP):tRNA nucleotidyltransferase, also called CCase. This enzyme catalyses a unique template-independent but sequence-specific nucleotide polymerization reaction ...