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Integrated DNA
Technologies, BVBA

Provisorium 2
Minderbroedersstraat 17-19
B-3000 Leuven
BELGIUM

Tel: +32-16-337096
Fax: +32-16-337097

info@rna-tec.com





How to reach us
 


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Intermediate scale oligonucleotides

•  Scale: Synthesis scales range from 10 µmol to several mmol. This corresponds with quantities of 10 mg to several grams.


•  Purity: Our standard purity > 95%, purities of 99 % as determined by analytical HPLC are available on request.We have completely optimized purification methods customized for each oligo depending on its length, its likeliness to form secondary structures, the purity requirement and the required counterion.


•  Yield: Our expertise in the field of nucleotide and nucleoside chemistry enables us to perform oligonucleotide synthesis with the highest yield in a cost effective format. For more info click complexity and cost efficiency.


•  Standard RNA & DNA: In our portfolio we have the above mentioned scales of standard RNA and DNA oligos. RNA oligos up to lengths of 45 bases are standard. For longer RNA oligos, please inquire.


•  Chimeras and modifications: Synthesis of complex chimeras and aptamers containing almost any commercially available monomer is also offered.


•  Delivery: All our products are fully desalted and supplied as sodium salts in lyophilized form. Of course other salts can be supplied when required. Delivery is with FedEx and is free of charge for orders > 1000 Euro.

•  Quality control: Extensive quality controls is supplied with all the data, free of charge. For more info concerning our quality control click quality control.

RNA - Peptide conjugates

The cellular uptake of oligonucleotides in vivo is a fundamental issue that has challenged scientists in the antisense field and is now a major issue for the in vivo / therapeutic application of siRNA.

It has been demonstrated that a variety of peptides enhance cellular uptake of oligonucleotides when conjugated to them, thus avoiding the usage of liposomes, many of which are toxic in vivo.

RNA-TEC now offers custom synthesis of RNA-peptide conjugates in which the linkage between the oligo and the peptide is stable or biodegradable.

Custom synthesis

•  Custom synthesis of various nucleotide related complex molecules e.g. aminoacyl adenylate analogues as inhibitors of aminoacyl t-RNA synthetases. Various research programs are supplied with complex molecules, but are confidential.

Aminoacyl adenylate analogues

We are very pleased to offer 5´-O-[N-(L-aminoacyl)sulfamoyl]adenosines for sale as stable analogues of aminoacyl adenylates. These compounds have the general structure shown below, where R represents an amino acid side-chain, and are potent inhibitors of the corresponding aminoacyl-tRNA synthetases. To date the alanyl (1-3), arginyl (4), asparaginyl (5, 24), aspartyl (13), cysteinyl (3), glutaminyl (6, 7), glutamyl (14), glycyl (1, 15), histidyl (4, 8), isoleucyl (21), lysyl (9), prolyl (3, 10, 16), seryl (11, 17), threonyl (4, 12, 18, 19), tyrosyl (20, 23) and valyl (22) analogues have been described in publications.

rna oligos

We envisage that these compounds should be of general interest to all scientists working on aminoacyl-tRNA synthetases.

Of course we would be very happy to custom synthesize other analogues such as norvalyl, so please contact us for a quotation.

PRODUCT
QUANTITY
CODE
PRICE(€)
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Alanyl analogue

10 mg
50 mg

Ala-SA-10
Ala-SA-50

250
1000

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Arginyl analogue

10 mg
50 mg

Arg-SA-10
Arg-SA-50

375
1500

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Asparaginyl analogue

10 mg
50 mg

Asn-SA-10
Asn-SA-50

313
1250

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Aspartyl analogue

10 mg
50 mg

Asp-SA-10
Asp-SA-50

250
1000

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Cysteinyl analogue

10 mg
50 mg

Cys-SA-10
Cys-SA-50

375
1500

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Glutaminyl analogue 10 mg
50 mg
Gln-SA-10
Gln-SA-50
800
3200
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Glutamyl analogue

10 mg
50 mg

Glu-SA-10
Glu-SA-50

250
1000

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Glycyl analogue 10 mg
50 mg
Gly-SA-10
Gly-SA-50
274
1100
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Histidyl analogue 10 mg
50 mg
His-SA-10
His-SA-50
375
1500
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Isoleucyl analogue 10 mg
50 mg
Ile-SA-10
Ile-SA-50
250
1000
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Leucyl analogue 10 mg
50 mg
Leu-SA-10
Leu-SA-50
250
1000
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Lysyl analogue 10 mg
50 mg
Lys-SA-10
Lys-SA-50
375
1500
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Methionyl analogue 10 mg
50 mg
Met-SA-10
Met-SA-50
375
1500
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Phenylalanyl analogue 10 mg
50 mg
Phe-SA-10
Phe-SA-50
250
1000
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Prolyl analogue 10 mg
50 mg
Pro-SA-10
Pro-SA-10
250
1000
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Seryl analogue 10 mg
50 mg
Ser-SA-10
Ser-SA-50
313
1250
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Threonyl analogue 10 mg
50 mg
Thr-SA-10
Thr-SA-50
313
1250
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Tryptophanyl analogue 10 mg
50 mg
Trp-SA-10
Trp-SA-50
800
3200
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Tyrosyl analogue 10 mg
50 mg
Tyr-SA-10
Tyr-SA-50
313
1250
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Valyl analogue 10 mg
50 mg
Val-SA-10
Val-SA-50
250
1000
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Larger quantities than those indicated are available upon request.

All compounds have been purified by preparative reversed phase HPLC and have a guaranteed purity of greater than 97% as determined by analytical reversed phase HPLC.

Each product is supplied in lyophilized form and is delivered with a data and QC sheet plus a reversed phase HPLC trace and a copy of the mass spectrum.


References

  1. Castro-Pichel, J. et al. (1987). A facile synthesis of ascamycin and related analogues. Tetrahedron 43, 383-389.
  2. Ueda, H. et al. (1991). X-ray crystallographic conformational study of 5ยด-O-[N-(L-alanyl)-sulfamoyl]adenosine, a substrate analogue for alanyl-tRNA synthetase. Biochim. Biophys. Acta 1080, 126-134.
  3. Kamtekar, S. et al. (2003). The structural basis of cysteine aminoacylation of tRNAPro by prolyl-tRNA synthetases. Proc. Natl. Acad. Sci. USA 100, 1673-1678.
  4. Forrest, A. K. et al. (2000). Aminoalkyl adenylate and aminoacyl sulfamate intermediate analogues differing greatly in affinity for their cognate Staphylococcus aureus aminoacyl tRNA synthetases. Bioorg. Med. Chem. Letters 10, 1871-1874.
  5. Berthet-Colominas, C. et al. (1998). The crystal structure of asparaginyl-tRNA synthetase from Thermus thermophilus and its complexes with ATP and asparaginyl-adenylate: the mechanism of discrimination between asparagine and aspartic acid. EMBO J. 17, 2947-2960.
  6. Rath, V. L. et al. (1998). How glutaminyl-tRNA synthetase selects glutamine. Structure 6, 439-449.
  7. Sherlin, L. D. et al. (2000). Influence of transfer RNA tertiary structure on aminoacylation efficiency by glutaminyl and cysteinyl-tRNA synthetases. J. Mol. Biol. 299, 431-446.
  8. Bovee, M. L. et al. (1999). tRNA discrimination at the binding step by a class II aminoacyl-tRNA synthetase. Biochemistry 38, 13725-13735.
  9. Cusack, S. et al. (1996). The crystal structures of T. thermophilus lysyl-tRNA synthetase complexed with E. coli tRNALys and a T. thermophilus tRNALys transcript: anticodon recognition and conformational changes upon binding of a lysyl-adenylate analogue. EMBO J. 15, 6321-6334.
  10. Heacock, D. et al. (1996). Synthesis and aminoacyl-tRNA synthetase inhibitory activity of prolyl adenylate analogs. Bioorg. Chem. 24, 273-289.
  11. Belrhali, H. et al. (1994). Crystal structures at 2.5 Angstrom resolution of seryl-tRNA synthetase complexed with two analogs of seryl adenylate. Science 263, 1432-1436.
  12. Sankaranarayanan, R. et al. (2000). Zinc ion mediated amino acid discrimination by threonyl-tRNA synthetase. Nature Structural Biology 7, 461-465.
  13. Bernier, S. et al. (2005). Synthesis and aminoacyl-tRNA synthetase inhibitory activity of aspartyl adenylate analogs. Bioorg. Med. Chem. 13, 69-75.
  14. Bernier, S. et al. (2005). Glutamylsulfamoyladenosine and pyroglutamylsulfamoyladenosine are copmpetitive inhibitors of E. coli glutamyl-tRNA synthetase. J. Enzyme Inhib. Med. Chem. 20, 61-67.
  15. Dignam, J.D. et al. (2003). Thermodynamic characterization of the binding of nucleotides to glycyl-tRNA synthetase. Biochemistry 42, 5333-5340.
  16. Bunjun, S. et al. (2000). A dual-specificity aminoacyl-tRNA synthetase in the deep-rooted eukaryote Giardia lamblia. Proc. Natl. Acad. Sci. USA 97, 12997-13002.
  17. Landeka, I. et al. (2000). Characterization of yeast seryl-tRNA synthetase active site mutants with improved discrimination against substrate analogues. Biochim. Biophys. Acta 1480, 160-170.
  18. Bovee, M.L. et al. (2003). Induced fit and kinetic mechanism of adenylation catalyzed by Escherichia coli threonyl-tRNA synthetase. Biochemistry 42, 15102-15113.
  19. Fukunaga, R. & Yokoyama, S. (2005). Structural basis for non-cognate amino acid discrimination by the valyl-tRNA synthetase editing domain. J. Biol. Chem. 280, 29937-29945.
  20. Kotik-Kogan, O. et al. (2005). Structural basis for discrimination of L-phenylalanine from L-tyrosine by phenylalanyl-tRNA synthetase. Structure 13, 1799-1807.
  21. Nakama, T. et al. (2001). Structural basis for the recognition of isoleucyl-adenylate and an antibiotic, mupirocin, by isoleucyl-tRNA synthetase. J. Biol. Chem. 276, 47387-47393.
  22. Fukunaga, R. & Yokoyama, S. (2004). Crystallization and preliminary X-ray crystallography study of the editing domain of Thermus thermophilus isoleucyl-tRNA synthetase complexed with pre- and post-transfer editing-substrate analogues. Acta Crystallogr. D Biol. Crystallogr. 60, 1900-1902.
  23. Kobayashi, T. et al. (2005). Structural snapshots of the KMSKS loop rearrangement for amino acid activation by bacterial tyrosyl-tRNA synthetase. J. Mol. Biol. 346, 105-117.
  24. Iwasaki, W. et al. (2006). Structural basis of the water-assisted asparagine recognition by asparaginyl-tRNA synthetase. J. Mol. Biol. 360, 329-342.
  25. Vaughan, M. et al. (2005). Investigation of bioisosteric effects on the interactionof substrates/inhibitors with the methionyl-tRNA synthetase from Escherichia coli. Med. Chem. 1, 227-237.
  26. Kanatani, K. et al. (2005). A simple approach to sense codon-templated synthesis of natural/unnatural hybrid peptides. Nucleic Acids Symp. Ser. 49, 265-266.