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GC-RICH [1 record]
Record 1 - internal organization data 2013-11-15
Record 1, English
Record 1, Subject field(s)
- Genetics
Record 1, Main entry term, English
- GC-rich
1, record 1, English, GC%2Drich
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- (G+C)-rich 2, record 1, English, %28G%2BC%29%2Drich
correct
- G+C-rich 2, record 1, English, G%2BC%2Drich
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Conceivably the individual variations in promoter sequences reflect differences in promoter efficiency, allowing different DNA functional units to be transcribed to lesser or greater degrees. The fact that both binding sequences are AT-rich probably reflects the fact that such sequences denature much more easily than do GC-rich regions, and so are obvious targets for an enzyme like RNA polymerase, whose functioning demands local denaturations. 1, record 1, English, - GC%2Drich
Record 1, French
Record 1, Domaine(s)
- Génétique
Record 1, Main entry term, French
- riche en GC
1, record 1, French, riche%20en%20GC
correct
Record 1, Abbreviations, French
Record 1, Synonyms, French
- riche en G+C 2, record 1, French, riche%20en%20G%2BC
correct
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La première méthode utilisée pour repérer la position réelle de différentes mutations du bactériophage lambda est basée sur la possibilité de fragmenter mécaniquement l'ADN en des segments de taille définie. Les fragments qui ont une densité différente peuvent être séparés les uns des autres par centrifugation à l'équilibre dans un gradient de chlorure de césium. Les fragments riches en GC ayant une densité plus grande que les fragments riches en AT, la séparation devient une opération de routine si les différents segments possèdent des rapports AT/GC distincts. Ces fragments peuvent être utilisés dans des expériences de transformation pour déterminer quels sont les gènes appartenant à chaque fragment. 2, record 1, French, - riche%20en%20GC
Record 1, Spanish
Record 1, Textual support, Spanish
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