The Journal of Visualized Experiments (JoVE) is a peer reviewed, PubMed-indexed video journal. Our mission is to increase the productivity of scientific research.
The JoVE video player is compatible with HTML5 and Adobe Flash. Older browsers that do not support HTML5 and the H.264 video codec will still use a Flash-based video player. We recommend downloading the newest version of Flash here, but we support all versions 10 and above.
Unable to load video. Please check your Internet connection and reload this page. If the problem continues, please let us know and we'll try to help.
An unexpected error occurred. Please check your Internet connection and reload this page. If the problem continues, please let us know and we'll try to help.
Inmunotransferencia (Western Blot) es un ensayo rápido y sensible para la detección y caracterización de proteínas que funciona mediante la explotación de la especificidad inherente en el reconocimiento antígeno-anticuerpo. Se trata de la solubilización y separación electroforética de las proteínas, glicoproteínas, o lipopolisacáridos por electroforesis en gel, seguido de la transferencia cuantitativa y unión irreversible a nitrocelulosa, PVDF, o de nylon. La técnica de inmunotransferencia ha sido útil en la identificación de antígenos específicos reconocidos por los anticuerpos policlonales o monoclonales y es altamente sensible (1 ng de antígeno puede ser detectado). Esta unidad dispone de protocolos para la separación de proteínas, las proteínas en las membranas de secante, immunoprobing y visualización utilizando sustratos cromogénicos o quimioluminiscencia.
for extraction of proteins from cell if we want to lyse whole cell we should use antiprotease .Could we use only PMSF for this purpose or we must use also other antiprotease with it...if our desired protein is chemokine that secretes to supernatant of our cell culture flask how could we extract it ....thanks alot for your kinds...
You must be signed in to post a comment. Please sign in or create an account.
It would be great if people submit discussing the troubleshooting of western blots (one of such kind has been dealt in this video..air bubbles trapped in western blots..coz the blotting membrane was put very rapidly in to the transfer buffer for pre wetting)
You must be signed in to post a comment. Please sign in or create an account.
You do not have to wash after blocking.
You can block then put in primary overnight. After primary and after secondary is where you have to wash so you dont have a lot of background. Works all the time for me...
You must be signed in to post a comment. Please sign in or create an account.
At the end of procedure when we dye the Immobilon-P membrane with BioRad 1immu-StarTM APChemo luminescent Protein Detection System: Do we have to remove excess of dye from membrane just before luminescent detection?
hello,
for extraction of proteins from cell if we want to lyse whole cell we should use antiprotease .Could we use only PMSF for this purpose or we must use also other antiprotease with it...if our desired protein is chemokine that secretes to supernatant of our cell culture flask how could we extract it ....thanks alot for your kinds...
1
ReplyPosted by: loghmanJune 30, 2008, 3:12 AM