Crystal structure of Tetrahymena p45N and p19Crystal structure of Tetrahymena p45N and p19

Structural highlights

5doi is a 8 chain structure with sequence from Tetth. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:TAP19 (TETTH), TAP45 (TETTH)
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Publication Abstract from PubMed

Tetrahymena telomerase holoenzyme subunits p75, p45 and p19 form a subcomplex (7-4-1) peripheral to the catalytic core. We report structures of p45 and p19 and reveal them as the Stn1 and Ten1 subunits of the CST complex, which stimulates telomerase complementary-strand synthesis. 7-4-1 binds telomeric single-stranded DNA, and mutant p19 overexpression causes telomere 3'-overhang elongation. We propose that telomerase-tethered Tetrahymena CST coordinates telomere G-strand and C-strand synthesis.

The Tetrahymena telomerase p75-p45-p19 subcomplex is a unique CST complex.,Wan B, Tang T, Upton H, Shuai J, Zhou Y, Li S, Chen J, Brunzelle JS, Zeng Z, Collins K, Wu J, Lei M Nat Struct Mol Biol. 2015 Nov 9. doi: 10.1038/nsmb.3126. PMID:26551074[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Wan B, Tang T, Upton H, Shuai J, Zhou Y, Li S, Chen J, Brunzelle JS, Zeng Z, Collins K, Wu J, Lei M. The Tetrahymena telomerase p75-p45-p19 subcomplex is a unique CST complex. Nat Struct Mol Biol. 2015 Nov 9. doi: 10.1038/nsmb.3126. PMID:26551074 doi:http://dx.doi.org/10.1038/nsmb.3126

5doi, resolution 2.20Å

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