Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns

Girault, J.-A. ; Gorelick, F.S. ; Greengard, P.

Amsterdam : Elsevier
ISSN:
0003-2697
Source:
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:
Biology
Chemistry and Pharmacology
Type of Medium:
Electronic Resource
URL:
_version_ 1798292438708649985
autor Girault, J.-A.
Gorelick, F.S.
Greengard, P.
autorsonst Girault, J.-A.
Gorelick, F.S.
Greengard, P.
book_url http://dx.doi.org/10.1016/0003-2697(89)90741-0
datenlieferant nat_lic_papers
fussnote Unwanted reactivity of polyclonal antisera against keratins (''fingerprint proteins'') is a problem commonly encountered when proteins transferred to nitrocellulose are studied by immunoblotting. Immunoreactivity against keratins is generally accompanied by a spotted background. This antikeratin immunoreactivity could be removed by adsorption of the antisera to human keratin bound to nitrocellulose. Larger amounts of antisera were purified from contaminant antikeratin antibodies by a single passage over a column of human keratin coupled to activated CH-Sepharose 4B. In contrast to nonpurified antisera and their IgG fractions, the column effluent no longer recognized the M"r 55,000-70,000 keratin proteins and exhibited a marked decrease in background labeling. We propose this simple method as a valuable alternative when affinity purification of polyclonal antisera on antigen columns is not practical.
hauptsatz hsatz_simple
identnr NLZ18397414X
issn 0003-2697
journal_name Analytical Biochemistry
materialart 1
package_name Elsevier
publikationsort Amsterdam
publisher Elsevier
reference 182 (1989), S. 193-196
search_space articles
shingle_author_1 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
shingle_author_2 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
shingle_author_3 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
shingle_author_4 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
shingle_catch_all_1 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
0003-2697
00032697
Elsevier
shingle_catch_all_2 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
0003-2697
00032697
Elsevier
shingle_catch_all_3 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
0003-2697
00032697
Elsevier
shingle_catch_all_4 Girault, J.-A.
Gorelick, F.S.
Greengard, P.
Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
0003-2697
00032697
Elsevier
shingle_title_1 Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
shingle_title_2 Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
shingle_title_3 Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
shingle_title_4 Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
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source_archive Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
timestamp 2024-05-06T08:48:31.816Z
titel Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
titel_suche Improving the quality of immunoblots by chromatography of polyclonal antisera on keratin affinity columns
Unwanted reactivity of polyclonal antisera against keratins (''fingerprint proteins'') is a problem commonly encountered when proteins transferred to nitrocellulose are studied by immunoblotting. Immunoreactivity against keratins is generally accompanied by a spotted background. This antikeratin immunoreactivity could be removed by adsorption of the antisera to human keratin bound to nitrocellulose. Larger amounts of antisera were purified from contaminant antikeratin antibodies by a single passage over a column of human keratin coupled to activated CH-Sepharose 4B. In contrast to nonpurified antisera and their IgG fractions, the column effluent no longer recognized the M"r 55,000-70,000 keratin proteins and exhibited a marked decrease in background labeling. We propose this simple method as a valuable alternative when affinity purification of polyclonal antisera on antigen columns is not practical.
topic W
V
uid nat_lic_papers_NLZ18397414X