Physarum polycephalum ribonuclease

Last updated
Physarum polycephalum ribonuclease
Identifiers
EC no. 3.1.26.1
CAS no. 9001-99-4
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Search
PMC articles
PubMed articles
NCBI proteins

Physarum polycephalum ribonuclease (EC 3.1.26.1) is an enzyme. [1] This enzyme catalyses the following chemical reaction

Endonucleolytic cleavage to 5'-phosphomonoester

Related Research Articles

<span class="mw-page-title-main">Slime mold</span> Several unrelated spore-forming species

Slime mold or slime mould is an informal name given to several kinds of unrelated eukaryotic organisms with a life cycle that includes a free-living single-celled stage and the formation of spores. Spores are often produced in macroscopic multicellular or multinucleate fruiting bodies which may be formed through aggregation or fusion. Slime molds were formerly classified as fungi but are no longer considered part of that kingdom. Although not forming a single monophyletic clade, they are grouped within the paraphyletic group Protista.

<span class="mw-page-title-main">Ribonuclease</span> Class of enzyme that catalyzes the degradation of RNA

Ribonuclease is a type of nuclease that catalyzes the degradation of RNA into smaller components. Ribonucleases can be divided into endoribonucleases and exoribonucleases, and comprise several sub-classes within the EC 2.7 and 3.1 classes of enzymes.

<span class="mw-page-title-main">Ribonuclease H</span> Enzyme family

Ribonuclease H is a family of non-sequence-specific endonuclease enzymes that catalyze the cleavage of RNA in an RNA/DNA substrate via a hydrolytic mechanism. Members of the RNase H family can be found in nearly all organisms, from bacteria to archaea to eukaryotes.

Maturation-promoting factor (abbreviated MPF, also called mitosis-promoting factor or M-Phase-promoting factor) is the cyclin-Cdk complex that was discovered first in frog eggs. It stimulates the mitotic and meiotic phases of the cell cycle. MPF promotes the entrance into mitosis (the M phase) from the G2 phase by phosphorylating multiple proteins needed during mitosis. MPF is activated at the end of G2 by a phosphatase, which removes an inhibitory phosphate group added earlier.

An esterase is a hydrolase enzyme that splits esters into an acid and an alcohol in a chemical reaction with water called hydrolysis.

<span class="mw-page-title-main">Ribonuclease III</span> Class of enzymes

Ribonuclease III (RNase III or RNase C)(BRENDA 3.1.26.3) is a type of ribonuclease that recognizes dsRNA and cleaves it at specific targeted locations to transform them into mature RNAs. These enzymes are a group of endoribonucleases that are characterized by their ribonuclease domain, which is labelled the RNase III domain. They are ubiquitous compounds in the cell and play a major role in pathways such as RNA precursor synthesis, RNA Silencing, and the pnp autoregulatory mechanism.

<i>Physarum polycephalum</i> Species of slime mold, model organism

Physarum polycephalum, an acellular slime mold or myxomycete popularly known as "the blob", is a protist with diverse cellular forms and broad geographic distribution. The “acellular” moniker derives from the plasmodial stage of the life cycle: the plasmodium is a bright yellow macroscopic multinucleate coenocyte shaped in a network of interlaced tubes. This stage of the life cycle, along with its preference for damp shady habitats, likely contributed to the original mischaracterization of the organism as a fungus. P. polycephalum is used as a model organism for research into motility, cellular differentiation, chemotaxis, cellular compatibility, and the cell cycle.

Ribonuclease T<sub>1</sub>

Ribonuclease T1 (EC 3.1.27.3, guanyloribonuclease, Aspergillus oryzae ribonuclease, RNase N1, RNase N2, ribonuclease N3, ribonuclease U1, ribonuclease F1, ribonuclease Ch, ribonuclease PP1, ribonuclease SA, RNase F1, ribonuclease C2, binase, RNase Sa, guanyl-specific RNase, RNase G, RNase T1, ribonuclease guaninenucleotido-2'-transferase (cyclizing), ribonuclease N3, ribonuclease N1) is a fungal endonuclease that cleaves single-stranded RNA after guanine residues, i.e., on their 3' end; the most commonly studied form of this enzyme is the version found in the mold Aspergillus oryzae. Owing to its specificity for guanine, RNase T1 is often used to digest denatured RNA prior to sequencing. Similar to other ribonucleases such as barnase and RNase A, ribonuclease T1 has been popular for folding studies.

<span class="mw-page-title-main">Pancreatic ribonuclease family</span>

Pancreatic ribonuclease family is a superfamily of pyrimidine-specific endonucleases found in high quantity in the pancreas of certain mammals and of some reptiles.

<i>Physarum</i> Genus of slime moulds

Physarum is a genus of mycetozoan slime molds in the family Physaraceae.

In enzymology, a bis(5'-nucleosyl)-tetraphosphatase (symmetrical) (EC 3.6.1.41) is an enzyme that catalyzes the chemical reaction

In enzymology, a sterol 3beta-glucosyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a protein-histidine pros-kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a protein-histidine tele-kinase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">RNASE1</span> Protein-coding gene in the species Homo sapiens

Ribonuclease pancreatic is an enzyme that in humans is encoded by the RNASE1 gene.

<span class="mw-page-title-main">University of Plymouth Contemporary Music Festival</span>

The University of Plymouth Contemporary Music Festival is an annual event held in Plymouth, Devon, England at the University of Plymouth. The event is hosted by The Arts Institute and the University of Plymouth Interdisciplinary Centre for Computer Research.

Ribonuclease T2 is an enzyme. It is a type of endoribonuclease. This enzyme catalyses the following chemical reaction

Ribonuclease E is a bacterial ribonuclease that participates in the processing of ribosomal RNA and the chemical degradation of bulk cellular RNA.

Frank Leslie Howard was a prominent American mycologist.

<span class="mw-page-title-main">Sedolisin</span>

The sedolisin family of peptidases are a family of serine proteases structurally related to the subtilisin (S8) family. Well-known members of this family include sedolisin ("pseudomonalisin") found in Pseudomonas bacteria, xanthomonalisin ("sedolisin-B"), physarolisin as well as animal tripeptidyl peptidase I. It is also known as sedolysin or serine-carboxyl peptidase. This group of enzymes contains a variation on the catalytic triad: unlike S8 which uses Ser-His-Asp, this group runs on Ser-Glu-Asp, with an additional acidic residue Asp in the oxyanion hole.

References

  1. Hiramaru M, Uchida T, Egami F (May 1969). "Studies on two nucleases and a ribonuclease from Physarum polycephalum. Purification and mode of action". Journal of Biochemistry. 65 (5): 701–8. PMID   5817397.