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SDS [2 records]
Record 1 - internal organization data 2012-09-19
Record 1, English
Record 1, Subject field(s)
- Biological Sciences
Record 1, Main entry term, English
- sodium dodecyl sulphate
1, record 1, English, sodium%20dodecyl%20sulphate
correct
Record 1, Abbreviations, English
- SDS 2, record 1, English, SDS
correct
Record 1, Synonyms, English
- sodium lauryl sulfate 3, record 1, English, sodium%20lauryl%20sulfate
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Ionic detergent used for denaturation of protein and in electrophoresis of protein subunits. 1, record 1, English, - sodium%20dodecyl%20sulphate
Record number: 1, Textual support number: 1 CONT
Detergent solubilization has been used with great success to study the major proteins in various membranes. Typically, the membranes are first heated to 100°C in a 1% solution of the strong detergent SDS (which disrupts all non-covalent protein-protein and protein-lipid interactions and completely unfolds the proteins), then layered on top of a polyacrylamide gel containing SDS, and lastly subjected to electrophoresis in a strong electric field for several hours. The amount of anionic SDS bound to protein is roughly equal to the mass of the polypeptide, with the result that the negative charge of the detergent overwhelms the intrinsic charge of the protein. Consequently, each individual protein migrates in the electric field at a rate determined by its molecular weight. 4, record 1, English, - sodium%20dodecyl%20sulphate
Record 1, French
Record 1, Domaine(s)
- Sciences biologiques
Record 1, Main entry term, French
- dodécyl sulfate de sodium
1, record 1, French, dod%C3%A9cyl%20sulfate%20de%20sodium
correct, masculine noun
Record 1, Abbreviations, French
- SDS 2, record 1, French, SDS
correct
Record 1, Synonyms, French
- laurylsulfate de sodium 3, record 1, French, laurylsulfate%20de%20sodium
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Détergent ionique employé comme agent dénaturant des protéines. 2, record 1, French, - dod%C3%A9cyl%20sulfate%20de%20sodium
Record number: 1, Textual support number: 1 CONT
Lors de l'électrophorèse en gel filtrant les protéines sont séparées selon leur taille moléculaire (ou encombrement stérique) et leur charge électrique. L'encombrement stérique d'une molécule dépend du poids moléculaire et de la configuration spatiale de la protéine. Pour mesurer le poids moléculaire d'une protéine, il faut donc éliminer l'influence de la charge et de la configuration spatiale. Un agent dénaturant, le dodécyl sulfate de sodium, permet d'obtenir ce résultat. Grâce à son affinité pour les protéines sur lesquelles il se fixe très solidement et en grande quantité, il leur confère une charge électrique constante par unité de surface et modifie considérablement leur configuration spatiale. C'est pourquoi le traitement par le SDS permet de mesurer directement le poids moléculaire d'une protéine après électrophorèse dans un gel de polyacrylamide. 4, record 1, French, - dod%C3%A9cyl%20sulfate%20de%20sodium
Record number: 1, Textual support number: 1 OBS
SDS est une abréviation de dodécyl sulfate de sodium. 2, record 1, French, - dod%C3%A9cyl%20sulfate%20de%20sodium
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Ciencias biológicas
Record 1, Main entry term, Spanish
- dodecil sulfato sódico
1, record 1, Spanish, dodecil%20sulfato%20s%C3%B3dico
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- laurilsulfato sódico 2, record 1, Spanish, laurilsulfato%20s%C3%B3dico
correct, masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Detergente utilizado para solubilizar proteínas y ADN de muestras biológicas. 1, record 1, Spanish, - dodecil%20sulfato%20s%C3%B3dico
Record number: 1, Textual support number: 1 OBS
Sólido de color blanco o amarillo. Soluble en agua. Poco tóxico. 2, record 1, Spanish, - dodecil%20sulfato%20s%C3%B3dico
Record 2 - internal organization data 2012-09-18
Record 2, English
Record 2, Subject field(s)
- Biochemistry
- Biotechnology
Record 2, Main entry term, English
- polyacrylamide gel electrophoresis
1, record 2, English, polyacrylamide%20gel%20electrophoresis
correct
Record 2, Abbreviations, English
- PAGE 2, record 2, English, PAGE
correct
Record 2, Synonyms, English
- acrylamide gel electrophoresis 3, record 2, English, acrylamide%20gel%20electrophoresis
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A type of electrophoresis used to determine the size and composition of proteins. 4, record 2, English, - polyacrylamide%20gel%20electrophoresis
Record number: 2, Textual support number: 1 OBS
Electrophoresis carried out in acrylamide gel, often used for the study of individual proteins in serum, particularly genetic variants and enzymes. Three gel layers are constructed, differing in composition and pore size: separation gel, spacer gel, and bottom separation gel. The actual ion separation is based on the charge and molecular size and takes place in the bottom gel layer. 5, record 2, English, - polyacrylamide%20gel%20electrophoresis
Record 2, French
Record 2, Domaine(s)
- Biochimie
- Biotechnologie
Record 2, Main entry term, French
- électrophorèse sur gel de polyacrylamide
1, record 2, French, %C3%A9lectrophor%C3%A8se%20sur%20gel%20de%20polyacrylamide
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- électrophorèse en gel d'acrylamide 2, record 2, French, %C3%A9lectrophor%C3%A8se%20en%20gel%20d%27acrylamide
correct, feminine noun
- électrophorèse en gel de polyacrylamide 3, record 2, French, %C3%A9lectrophor%C3%A8se%20en%20gel%20de%20polyacrylamide
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
La température de fusion d'un produit PCR (ADN double brin), c'est-à-dire la température moyenne de séparation des deux brins est fonction de sa séquence. Une mutation ponctuelle qui change donc la séquence entraîne une modification de la température de fusion. Cette modification est mise en évidence par électrophorèse sur gel de polyacrylamide en présence d'un gradient d'agent dénaturant. 1, record 2, French, - %C3%A9lectrophor%C3%A8se%20sur%20gel%20de%20polyacrylamide
Record number: 2, Textual support number: 1 OBS
La plus fine des méthodes de séparation par simple électrophorèse sur support. Une solution d'acrylamide forme un gel par polymérisation. Les pores ont un diamètre de 50 [angstrom] environ. Les protéines à séparer sont déposées à une extrémité du gel dans lequel elles se déplacent sous l'action du champ électrique. 3, record 2, French, - %C3%A9lectrophor%C3%A8se%20sur%20gel%20de%20polyacrylamide
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Bioquímica
- Biotecnología
Record 2, Main entry term, Spanish
- electroforesis en gel de poliacrilamida
1, record 2, Spanish, electroforesis%20en%20gel%20de%20poliacrilamida
correct, feminine noun
Record 2, Abbreviations, Spanish
- PAGE 1, record 2, Spanish, PAGE
correct, feminine noun
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Método [...] para separar ácidos nucleicos y proteínas atendiendo a su tamaño molecular [...], se basa en la migración de moléculas cargadas eléctricamente a través de una matriz inerte (gel de poliacrilamida) como resultado de la aplicación de un campo eléctrico. 2, record 2, Spanish, - electroforesis%20en%20gel%20de%20poliacrilamida
Record number: 2, Textual support number: 1 OBS
PAGE por sus siglas en inglés. 3, record 2, Spanish, - electroforesis%20en%20gel%20de%20poliacrilamida
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