Synthesis of C8‐Arylamine‐Modified 2′‐Deoxyadenosine Phosphoramidites and their Site‐Specific Incorporation into Oligonucleotides
Synthesis of C8‐Arylamine‐Modified 2′‐Deoxyadenosine Phosphoramidites and their Site‐Specific Incorporation into Oligonucleotides
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C8â芳胺â修饰的2â²â脱氧腺苷亚磷酰胺的合成及其位点特异性掺入寡核苷酸
DOI:
10.1002/cbic.201100573
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发表时间:
2012
期刊:
影响因子:
3.2
通讯作者:
C. Meier
中科院分区:
文献类型:
--
作者:
Z. Szombati;S. Baerns;A. Marx;C. Meier
Adducts of C8‐(N‐acetyl)‐arylamines and 2′‐deoxyadenosine were synthesised by palladium‐catalysed CN cross‐coupling chemistry. These 2′‐dA adducts were converted into the corresponding 3′‐phosphoramidites and site‐specifically incorporated into DNA oligonucleotides, which were characterised by mass spectrometry, UV thermal‐stability assays and circular dichroism. These modified oligonucleotides were also used in EcoRI restriction assays and in primer‐extension studies with three different DNA polymerases. The incorporation of the 2′‐dA lesion close to the EcoRI restriction site dramatically reduced the susceptibility of the DNA strand to cleavage; this indicates a significant local distortion of the DNA double helix. The incorporation of the acetylated C8‐2′‐dA‐phosphoramidites into 20‐mer oligonucleotides failed, however, because the N‐acetyl group was lost during the deprotection process. Instead the corresponding C8‐NH‐2′‐dA‐modified oligonucleotides were obtained. The effect of the C8‐NH‐arylamine‐dA lesion on the replication by DNA polymerases was clearly dependent both on the polymerase used and on the arylamine‐dA damage.
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影响因子:
3.6
作者:
Yuanzhong Zhou;S. Chládek;L. Romano
通讯作者:
L. Romano
影响因子:
4.7
作者:
Shibutani,S;Gentles,R;Johnson,F;Grollman,AP
通讯作者:
Grollman,AP
影响因子:
5.1
作者:
R. Saffhill;P. J. Abbott
通讯作者:
P. J. Abbott
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
Shuji Oda;Hiroshi Yamaguchi;Megumi Kudo;Yoshinori Kondo;Chojiro Kojima;Akira Ono and Yoshiyuki Tanaka
通讯作者:
Akira Ono and Yoshiyuki Tanaka
影响因子:
4.1
作者:
R. Turesky;J. Markovic
通讯作者:
J. Markovic