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C8274

Sigma-Aldrich

Cytohelicase from Helix pomatia

lyophilized powder

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Synonym(s):
Snail gut enzyme
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

form

lyophilized powder

Quality Level

composition

Protein, 50-80% Lowry

storage temp.

2-8°C

Application

Cytohelicase from Helix pomatia has been used:
  • in the enzyme solution for preparing the cell nuclei for immuno fluorescent in situ hybridization (immunoFISH)
  • in the enzyme mix to analyze meiotic cells at diakinesis and later stages in anthers
  • in the enzyme mix for the analysis of mitosis in anthers

Cytohelicase from Helix pomatia has been used to study the isolation of yeast protoplasts using various preparations of the hepato-pancreatic juice of Helix pomatia.
The enzyme from Sigma has been used for cytohelicase assay. The enzyme assay was used while studying the effects of MNN10 gene-disruption on protein secretion in Kluyveromyces lactis and Saccharomyces cerevisiae cultures.

Biochem/physiol Actions

Cytohelicase from Helix pomatia is used in the preparation of synaptonemal complex spreading techniques along with bovine serum albumin. It plays an important role in the digestion of cell wall. Cytohelicase interacts with chromatin and improves the adhesion of synaptonemal complexes to the hydrophobic plastic film.

Analysis Note

Contains glucanase/laminarinase activity

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

动植物源性产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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ImmunoFISH: simultaneous visualisation of proteins and DNA sequences gives insight into meiotic processes in nuclei of grasses.
Sepsi A, et al.
Frontiers in Plant Science, 9(7), 1193-1193 (2018)
Improved method of enzyme digestion for root tip cytology.
Lattier JD, et al.
Hortscience: a Publication of the American Society For Horticultural Science Hortscience, 52(7), 1029-1032 (2017)
The effect of bovine serum albumin and cytohelicase on surface-spread synaptonemal complexes of Rye (Secale cereale).
De Jong JH and van Eden J
Stain Technology, 63(4), 213-220 (1988)
M Diatewa et al.
Biochimie, 63(1), 67-69 (1981-01-01)
Conversion of large amounts of Saccharomyces cerevisiae cells to protoplasts is studied using various preparations extracted from Helix pomatia hepato-pancreatic juice. The most favourable yield in two hours incubations (88 per cent) is obtained with 20 ml cytohelicase, a chitinase
Mikhail G Divashuk et al.
PloS one, 9(1), e85118-e85118 (2014-01-28)
Hemp (Cannabis sativa L.) was karyotyped using by DAPI/C-banding staining to provide chromosome measurements, and by fluorescence in situ hybridization with probes for 45 rDNA (pTa71), 5S rDNA (pCT4.2), a subtelomeric repeat (CS-1) and the Arabidopsis telomere probes. The karyotype

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