Pyrrolo-c - a Fluorescent Nucleoside Base Analogue That Codes Efficiently as C

ثبت نشده
چکیده

PYRROLO-dCTP The fluorescence of a nucleoside base is highly dependent on the environment of the base and the measurement of its fluorescence is a powerful and sensitive tool for the analysis of DNA and RNA structure. It is especially useful for analyzing the interaction of DNA and RNA with their corresponding binding proteins. Fluorescence measurements allow real-time probing of these structural interactions. Unfortunately, the intrinsic fluorescence of the regular bases is extremely low to non-existent, so fluorescent analogues have been sought for a long time.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Pyrrolo-C as a fluorescent probe for monitoring RNA secondary structure formation.

Pyrrolo-C (PC), or 3-[beta-D-2-ribofuranosyl]-6-methylpyrrolo[2,3-d]pyrimidin-2(3H)-one, is a fluorescent analog of the nucleoside cytidine that retains its Watson-Crick base-pairing capacity with G. Due to its red-shifted absorbance, it can be selectively excited in the presence of natural nucleosides, making it a potential site-specific probe for RNA structure and dynamics. Similar to 2-amino...

متن کامل

Pyrrolo-dC oligonucleotides bearing alkynyl side chains with terminal triple bonds: synthesis, base pairing and fluorescent dye conjugates prepared by the azide-alkyne "click" reaction.

5-(Octa-1,7-diynyl)-2'-deoxyuridine was converted into the furano-dU derivative 7 by copper-catalyzed cyclization; the pyrolodC-derivative 3 was formed upon ammonolysis. The bicyclic nucleosides 3 and 7 as well as the corresponding non-cyclic precursors 4 and 6 all containing terminal C[triple bond]C bonds were conjugated with the non-fluorescent 3-azido-7-hydroxycoumarin 5 employing the copper...

متن کامل

Pyrazolo[1,5-a]-1,3,5-triazine C-nucleoside as deoxyadenosine analogue: synthesis, pairing, and resistance to hydrolysis.

The synthesis of a pyrazolo[1,5-a]-1,3,5-triazine C-nucleoside (dA(PT)), designed to form two hydrogen bonds with a complementary dT residue, is reported. Oligonucleotides including this dA nucleoside analogue possess base-pairing properties similar to those of the parent oligonucleotide. This dA nucleoside analogue is more resistant to acid-catalyzed hydrolysis than dA.

متن کامل

Investigating local conformations of double-stranded DNA by low-energy circular dichroism of pyrrolo-cytosine.

Local base stacking and conformational mobility play a major role in the structure and function of nucleic acids. We have recently shown that the low-energy CD spectrum of 2-aminopurine (2-AP), i.e., the CD spectral region above 300 nm, can be used to monitor conformational changes in polynucleotides at or near mono- and dinucleotide 2-AP residues that replace adenine residues in DNA and RNA. H...

متن کامل

Anticonvulsant Activities of 7-phenyl-5H-thiazolo[5,4-e][1,2,3,4]tetrazolo[5,1-c]pyrrolo[1,2-a][1,4]diazepine and 7-phenyl-5H-thiazolo[5,4-e][1,3,4]triazolo[5,1-c] pyrrolo[1,2-a][1,4]diazepines

Anticonvulsant activity of 7-phenyl-5H-thiazolo[5,4-e][1,2,3,4]tetrazolo[5,1-c]pyrrolo[1,2-a][1,4]diazepine (5) and 7-phenyl-5H-thiazolo[5,4-e][1,3,4]triazolo[5,1-c]pyrrolo[1,2-a][1,4]diazepines (6a-d) was measured against pentylenetetrazole (PTZ)-induced seizures in mice. Intraperitoneal injections of different doses (12.5, 25 and 50 mg/kg, i.p.) of test compounds decreased PTZ-induced seizure...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003