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001-es BibID:BIBFORM065368
Első szerző:Nagy Bálint (molekuláris genetikus)
Cím:Downward Blotting of Proteins in a Model Based on Apolipoprotein(a) Phenotyping / Nagy Balint, Costello Rene, Csako Gyorgy
Dátum:1995
ISSN:0003-2697
Megjegyzések:Standard immunoblotting ("Western blot") involves electrotransfer of proteins from a separation gel (usually acrylamide) onto a membrane. Recently, a downward capillary method with increased hybridization efficiency was developed for DNA and RNA. The present work assessed the applicability of this method to proteins in a model based on human apolipoprotein(a)[apo(a)] isoforms which consist of a single, >200-kDa polypeptide chain varying in size with a repeat sequence. After reduction treatment and sodium dodecyl sulfate-agarose gel electrophoresis, serum proteins were transferred from the gel by upward or downward (Turboblotter) capillary action onto nitrocellulose membranes in Tris-buffered saline, pH 7.5, at room temperature. Increased detectability of apo(a) isoforms was achieved by substituting comparatively high molar concentrations of protein A for true second antibody. With downward capillary transfer and short 37 degrees C incubations, the apo(a) phenotyping could be completed in about 26 h and required less than 8 h effective processing time. The downward transfer was about twice as fast (complete within 1 h) as the upward version and with this speed it offers a good alternative to electroblotting as well.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
downward
blotting
apolipoprotein(A)
phenotyping
Megjelenés:Analytical Biochemistry. - 231 : 1 (1995), p. 40-45. -
További szerzők:Costello, Rene Csákó György
Internet cím:DOI
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