CATH Classification

Domain Context

CATH Clusters

Superfamily Cyclic phosphodiesterase
Functional Family

Enzyme Information

3.1.4.58
RNA 2',3'-cyclic 3'-phosphodiesterase.
based on mapping to UniProt Q5SHB1
(Ribonucleotide)(n)-2',3'-cyclic phosphate + H(2)O = (ribonucleotide)(n)- 2'-phosphate.
-!- The enzyme hydrolyzes RNA 2',3'-cyclic phosphodiester to an RNA 2'-phosphomonoester. -!- In vitro the enzyme can also ligate tRNA molecules with 2',3'-cyclic phosphate to tRNA with 5'-hydroxyl termini, forming a 2'-5' phosphodiester linkage. -!- However, the ligase activity is unlikely to be relevant in vivo.

UniProtKB Entries (1)

Q5SHB1
THPR_THET8
Thermus thermophilus HB8
RNA 2',3'-cyclic phosphodiesterase

PDB Structure

PDB 1IUH
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal Structure of the 2'-5' RNA Ligase from Thermus thermophilus HB8
Kato, M., Shirouzu, M., Terada, T., Yamaguchi, H., Murayama, K., Sakai, H., Kuramitsu, S., Yokoyama, S.
J.MOL.BIOL.