DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).

We have used DNA footprinting and fluorescence melting experiments to study the sequence specific binding of an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B) to DNA. While the parent compound (thiazotropsin A) binds to the hexanucleotide sequence ACTAGT, changing on...

Full description

Bibliographic Details
Main Authors: Hampshire, A, Khairallah, H, Khalaf, A, Ebrahimabadi, A, Waigh, R, Suckling, C, Brown, T, Fox, K
Format: Journal article
Language:English
Published: 2006
_version_ 1826295203500130304
author Hampshire, A
Khairallah, H
Khalaf, A
Ebrahimabadi, A
Waigh, R
Suckling, C
Brown, T
Fox, K
author_facet Hampshire, A
Khairallah, H
Khalaf, A
Ebrahimabadi, A
Waigh, R
Suckling, C
Brown, T
Fox, K
author_sort Hampshire, A
collection OXFORD
description We have used DNA footprinting and fluorescence melting experiments to study the sequence specific binding of an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B) to DNA. While the parent compound (thiazotropsin A) binds to the hexanucleotide sequence ACTAGT, changing one of the N-methylpyrrole groups to N-methylimidazole changes the preferred binding sequence to (A/T)CGCG(T/A). Experiments with DNA fragments that contain variants of this sequence suggest that the ligand can also bind, with lower affinity, to sequences which differ from this by 1bp in any position.
first_indexed 2024-03-07T03:57:26Z
format Journal article
id oxford-uuid:c3588459-26a7-41a7-90c9-79ef66a2fe61
institution University of Oxford
language English
last_indexed 2024-03-07T03:57:26Z
publishDate 2006
record_format dspace
spelling oxford-uuid:c3588459-26a7-41a7-90c9-79ef66a2fe612022-03-27T06:15:47ZDNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c3588459-26a7-41a7-90c9-79ef66a2fe61EnglishSymplectic Elements at Oxford2006Hampshire, AKhairallah, HKhalaf, AEbrahimabadi, AWaigh, RSuckling, CBrown, TFox, KWe have used DNA footprinting and fluorescence melting experiments to study the sequence specific binding of an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B) to DNA. While the parent compound (thiazotropsin A) binds to the hexanucleotide sequence ACTAGT, changing one of the N-methylpyrrole groups to N-methylimidazole changes the preferred binding sequence to (A/T)CGCG(T/A). Experiments with DNA fragments that contain variants of this sequence suggest that the ligand can also bind, with lower affinity, to sequences which differ from this by 1bp in any position.
spellingShingle Hampshire, A
Khairallah, H
Khalaf, A
Ebrahimabadi, A
Waigh, R
Suckling, C
Brown, T
Fox, K
DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).
title DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).
title_full DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).
title_fullStr DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).
title_full_unstemmed DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).
title_short DNA sequence recognition by an imidazole-containing isopropyl-substituted thiazole polyamide (thiazotropsin B).
title_sort dna sequence recognition by an imidazole containing isopropyl substituted thiazole polyamide thiazotropsin b
work_keys_str_mv AT hampshirea dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb
AT khairallahh dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb
AT khalafa dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb
AT ebrahimabadia dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb
AT waighr dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb
AT sucklingc dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb
AT brownt dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb
AT foxk dnasequencerecognitionbyanimidazolecontainingisopropylsubstitutedthiazolepolyamidethiazotropsinb