ID:DCPS_HUMAN DESCRIPTION: RecName: Full=m7GpppX diphosphatase; EC=3.6.1.59; AltName: Full=DCS-1; AltName: Full=Hint-related 7meGMP-directed hydrolase; AltName: Full=Histidine triad protein member 5; Short=HINT-5; AltName: Full=Scavenger mRNA-decapping enzyme DcpS; FUNCTION: Necessary for the complete degradation of mRNAs, both in normal mRNA turnover and in nonsense-mediated mRNA decay. Removes the 7-methyl guanine cap structure from mRNA fragments shorter than 10 nucleotides that are produced by 3'->5' exosome-mediated mRNA decay. Releases m7GMP. Can also degrade m7GDP to m7GMP. Has no activity towards mRNA molecules longer than 25 nucleotides. CATALYTIC ACTIVITY: M(7)G5'ppp5'N(3'ppp5'N)(n) + H(2)O = 7- methylguanosine 5'-phosphate + pp5'N(3'ppp5'N)(n). CATALYTIC ACTIVITY: 7-methylguanosine 5'-diphosphate + H(2)O = 7- methylguanosine 5'-phosphate + phosphate. SUBUNIT: Homodimer. Associates with components of the exosome multienzyme ribonuclease complex, such as EXOSC3 and EXOSC4. SUBCELLULAR LOCATION: Cytoplasm. Nucleus. TISSUE SPECIFICITY: Detected in liver, brain, kidney, testis and prostate. SIMILARITY: Belongs to the HIT family.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q96C86
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.