Skip to Content
Merck

Skip To

P4404

Polyguanylic acid potassium salt

≥95% (TLC), enzyme from (synthesis), lyophilized powder

Synonym(s):

Poly(G) potassium salt

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice
5 mg
Please contact Customer Service for Availability
4 090,00 CZK
25 mg
Please contact Customer Service for Availability
14 500,00 CZK

About This Item

CAS Number:
UNSPSC Code:
41106305
NACRES:
NA.51
MDL number:
Assay:
≥95% (TLC)
Biological source:
enzyme from (synthesis)
Form:
lyophilized powder
Solubility:
water: 19.60-20.40 mg/mL, clear to slightly hazy, colorless to light yellow
Storage temp.:
−20°C

4 090,00 CZK


Please contact Customer Service for Availability

​
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


Product Name

Polyguanylic acid potassium salt, lyophilized powder

biological source

enzyme from (synthesis)

Quality Segment

assay

≥95% (TLC)

form

lyophilized powder

quality

≤5% free nucleotides

solubility

water: 19.60-20.40 mg/mL, clear to slightly hazy, colorless to light yellow

storage temp.

−20°C

General description

Polyguanylic acid takes up a four-stranded helical structure. It is synthetically produced in Thermus thermophilus from guanosine diphosphate (GDP) and its synthesis is catalyzed by the enzyme polynucleotide phosphorylase.

Application

Polyguanylic acid potassium salt has been used:
  • as a ligand for surface neuropilin-1 (NRP1) for internalization studies
  • for intercalation studies with trisubstituted and disubstituted triazole-linked phenyl derivatives CL41, CL42 and CL2r50 using voltammetry method
  • as a synthetic polynucleotide for agarose gel electrophoresis analysis

Polyguanylic acid (PolyG) is used to study the effects of ionizing radiation on formation and stability of G-quadruplex structures and as a target molecule for physicochemical studies of electronic excitation (vibrational spectra) of guanosine.

Biochem/physiol Actions

Polyguanylic acid acts as a ligand for scavenger receptor and reduces the surface expression neuropilin-1 in endothelial cells.

Preparation Note

Prepared from GDP using polynucleotide phosphorylase

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
BP879G7294368975
Guanine British Pharmacopoeia (BP) Reference Standard

BP879

Guanine

description

lyophilized powder

description

British Pharmacopoeia (BP) Reference Standard

description

8 M, pH 8.5, buffered aqueous solution

description

Powerful protein denaturant. Absorbance (1.7 M, H2O, 280 nm):0.30.

biological source

enzyme from (synthesis)

biological source

-

biological source

-

biological source

-

Quality Level

200

Quality Level

-

Quality Level

200

Quality Level

100

assay

≥95% (TLC)

assay

-

assay

-

assay

≥99% (titration)

form

lyophilized powder

form

powder

form

buffered aqueous solution

form

solid

solubility

water: 19.60-20.40 mg/mL, clear to slightly hazy, colorless to light yellow

solubility

-

solubility

-

solubility

ethanol: 5%, water: 25%

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

-

storage temp.

−20°C


Storage Class

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Gloves, type N95 (US)



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library




Questions

1–2 of 2 Questions  
  1. Can this form G quadruplex?

    1 answer
    1. Polyguanylic acid takes up a four-stranded helical structure. It is synthetically produced and is used to study the effects of ionizing radiation on the formation and stability of G-quadruplex structures. This indicates that this product can form G-quadruplexes.

      Helpful?

  2. What is the average length of the poly(g) chains?

    1 answer
    1. Unfortunately, this product is not tested to determine the molecular weight and information is limited. The length of poly(g) chains is not determined. Polyguanylic acid is a mixture of different and wide ranging molecules, therefore the number of bases is not determined. There is no size limiting or selecting step during the production process. Historical information is available on past lots, which were assayed by both LALLS assay and a formaldehyde denaturing system. Analysis using the denaturing system indicates a wide range of <80,000 to 500,000 with the greatest density at <80,000 to 210,000 . Two past lots have been analyzed by LALLS resulting in estimated molecular weights of 385,000 and 482,000 daltons.

      Helpful?

Reviews

No rating value

Active Filters