Abstract
Mutants having low levels of polynucleotide phosphorylase activity grow poorly at 45 C. All revertants isolated for their ability to grow better at that temperature also regained higher levels of polynucleotide phosphorylase and the ability to be induced for tryptophanase. Thus, a physiological role is implied for the enzyme polynculeotide phosphorylase.
MeSH Terms
Adenosine Diphosphate/biosynthesis
Cell-Free System
Chromatography, Paper
Enzyme Induction
Escherichia coli/enzymology,growth & development
Galactosidases/biosynthesis,metabolism
Mutation
Phosphorus Isotopes
Polynucleotides/metabolism
Polyribonucleotide Nucleotidyltransferase
RNA Nucleotidyltransferases/metabolism
RNA, Bacterial/metabolism
RNA, Messenger/metabolism
Temperature
Tryptophanase/biosynthesis,metabolism
Chemicals
Phosphorus Isotopes
Polynucleotides
RNA, Bacterial
RNA, Messenger
Adenosine Diphosphate
RNA Nucleotidyltransferases
Polyribonucleotide Nucleotidyltransferase
Galactosidases
Tryptophanase
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Krishna R V
Apirion D
References (14)
14 references, click to expand
-
Isolation and characterization of ribonuclease I mutants of Escherichia coli.
J Mol Biol. 1966 Mar;16(1):67-84
PMID: 5331244
-
Purification and properties of polynucleotide phosphorylase from Escherichia coli.
J Biol Chem. 1968 Jan 25;243(2):231-40
PMID: 4866865
-
The processive degradation of individual polyribonucleotide chains. I. Escherichia coli ribonuclease II.
J Biol Chem. 1968 Mar 10;243(5):913-22
PMID: 4867942
-
The processive degradation of individual polyribonucleotide chains. II. Micrococcus lysodeikticus polynucleotide phosphorylase.
J Biol Chem. 1968 Mar 10;243(5):923-7
PMID: 5640977
-
Isolation and mapping of polynucleotide phosphorylase mutants of Escherichia coli.
J Bacteriol. 1969 Mar;97(3):1431-6
PMID: 4887519
-
Characterization of polynucleotide phosphorylase mutants of Escherichia coli.
J Bacteriol. 1969 Mar;97(3):1437-43
PMID: 4887520
-
The effect of chain length on the phosphorolysis of oligonucleotides by polynucleotide phosphorylase.
J Biol Chem. 1970 Mar 10;245(5):1005-11
PMID: 4313699
-
An Escherichia coli mutant with increased messenger ribonuclease activity.
Proc Natl Acad Sci U S A. 1971 Dec;68(12):3140-4
PMID: 4943555
-
Genetic analysis of an Escherichia coli syndrome.
J Bacteriol. 1971 Dec;108(3):1322-8
PMID: 4945197
-
A messenger RNA from the lactose operon of Escherichia coli that can not direct the production of functional -galactosidase in absence of exogenous adenosine 3',5-cyclic monophosphate.
Genetics. 1972 May;71(1):1-18
PMID: 4338629
-
Escherichia coli strains with thermolabile ribonuclease II activity.
J Biol Chem. 1972 Sep 10;247(17):5404-8
PMID: 4560197
-
Increased inactivation of messengers in Escherichia coli ts mutant.
Nat New Biol. 1972 Sep 20;239(90):79-81
PMID: 4573691
-
Protein measurement with the Folin phenol reagent.
J Biol Chem. 1951 Nov;193(1):265-75
PMID: 14907713
-
Enzymic synthesis of polynucleotides. I. Polynucleotide phosphorylase of azotobacter vinelandii.
Biochim Biophys Acta. 1956 Apr;20(1):269-85
PMID: 13315374