Literature DB >> 6525334

Left-handed helical structure of poly[d(A-C)].poly[d(G-T)] studied by infrared spectroscopy.

E Taillandier, J A Taboury, S Adam, J Liquier.   

Abstract

Infrared spectroscopic studies demonstrate the ability of poly[d(A-C)].poly[d(G-T)] to adopt a Z-type conformation. The Z form of the unmodified polynucleotide is induced by Ni2+ counterions and not by Na+. The B----Z equilibrium is shifted at room temperature, in the presence of 1 Ni2+/nucleotide, by an increase in the concentration of poly[d(A-C)].poly[d(G-T)]. The importance of specific binding of Ni2+ ions on the N7 site of purines in the stabilization of the Z form is also discussed.

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Year:  1984        PMID： 6525334     DOI： 10.1021/bi00319a007

Source DB:  PubMed          Journal:  Biochemistry        ISSN： 0006-2960            Impact factor:   3.162


  10 in total

1.  Probing tRNA interaction with biogenic polyamines.

Authors:  Amin Ahmed Ouameur; Philippe Bourassa; Heidar-Ali Tajmir-Riahi
Journal:  RNA       Date:  2010-08-20       Impact factor: 4.942

2.  Vacuum UV circular dichroism is diagnostic for the left-handed Z form of poly [d(A-C).d(G-T)] and other polydeoxynucleotides.

Authors:  J H Riazance; W C Johnson; L P McIntosh; T M Jovin
Journal:  Nucleic Acids Res       Date:  1987-09-25       Impact factor: 16.971

3.  Conformational flexibility in the right-handed and in the left-handed double helices of Na+-d(m5C-G-T-A-m5C-G) studied by IR spectroscopy.

Authors:  E Taillandier; S Adam; J P Ridoux; J Liquier
Journal:  Nucleic Acids Res       Date:  1988-06-24       Impact factor: 16.971

4.  Right-handed and left-handed helices of poly(dA-dC) X (dG-dT).

Authors:  J A Taboury; E Taillandier
Journal:  Nucleic Acids Res       Date:  1985-06-25       Impact factor: 16.971

5.  Z form of poly d(A-C).poly d(G-T) in solution studied by Raman spectroscopy.

Authors:  J P Ridoux; J Liquier; E Taillandier
Journal:  Nucleic Acids Res       Date:  1987-07-24       Impact factor: 16.971

6.  A left-handed (Z) conformation of poly(dA-dC).poly(dG-dT) induced by polyamines.

Authors:  T J Thomas; R P Messner
Journal:  Nucleic Acids Res       Date:  1986-08-26       Impact factor: 16.971

7.  NMR, CD and IR spectroscopies of a tridecanucleotide containing a no-base residue: coexistence of B and Z conformations.

Authors:  S Pochet; T Huynh-Dinh; J M Neumann; S Tran-Dinh; S Adam; J Taboury; E Taillandier; J Igolen
Journal:  Nucleic Acids Res       Date:  1986-01-24       Impact factor: 16.971

8.  Interaction of transition metal ions with Z form poly d(A-C).poly d(G-T) and poly d(A-T) studied by I.R. spectroscopy.

Authors:  S Adam; P Bourtayre; J Liquier; E Taillandier
Journal:  Nucleic Acids Res       Date:  1986-04-25       Impact factor: 16.971

9.  Interruptions of (CG)n sequences by GG, TG and CA need not prevent B to Z transition in solution.

Authors:  R K Mishra; P K Latha; S K Brahmachari
Journal:  Nucleic Acids Res       Date:  1988-05-25       Impact factor: 16.971

Review 10.  Risk assessment of nickel carcinogenicity and occupational lung cancer.

Authors:  H M Shen; Q F Zhang
Journal:  Environ Health Perspect       Date:  1994-01       Impact factor: 9.031
  10 in total

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