| 2B2A: reference: Crystal structure of the essential N-terminal domain of telomerase reverse transcriptase., Jacobs SA, Podell ER, Cech TR, Nat Struct Mol Biol. 2006 Mar;13(3):218-25. Epub 2006 Feb 5. PMID: 16462747 |
This OCA 
Structure page
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(documentation).