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2.7.7.8: polyribonucleotide nucleotidyltransferase

This is an abbreviated version!
For detailed information about polyribonucleotide nucleotidyltransferase, go to the full flat file.

Word Map on EC 2.7.7.8

Reaction

RNAn+1
+
phosphate
=
RNAn
 +
a nucleoside diphosphate

Synonyms

AtcpPNPase, AtmtPNPase, chloroplast PNPase, cpPNPase, hPNPase(old-35), hPNPaseold-35, nucleoside diphosphate:polynucleotidyl transferase, nucleotidyltransferase, polyribonucleotide, PNP, PNPase, PNPT1, polynucleotide phosphorylase, polyribonucleotide phosphorylase, RNase PH

ECTree

     2 Transferases
         2.7 Transferring phosphorus-containing groups
             2.7.7 Nucleotidyltransferases
                2.7.7.8 polyribonucleotide nucleotidyltransferase

pH Range

pH Range on EC 2.7.7.8 - polyribonucleotide nucleotidyltransferase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
5 - 9.5
-
almost no activity below
7.2 - 9
-
phosphorolysis of poly(A), approx. 25% of maximal activity at pH 7.3 and pH 9.1, respectively
7.5 - 9.3
-
approx. 60% of maximal activity at pH 7.5, approx. 70% of maximal activity at pH 9.3
7.6 - 8.8
-
approx. 40% of maximal activity at pH 7.6, approx. 70% of maximal activity at pH 8.8
8.4 - 10
-
polymerization of ADP, approx. 25% of maximal activity at pH 8.6
9.5 - 11.5
-
14% of maximal activity at pH 9.5, 70% of maximal activity at pH 11.5