GSBS Student Publications

Title

Heterogeneity in the membrane proteins of human lymphoid cell lines as seen in sodium dodecyl sulfate-polyacrylamide electrophoresis slab gels

Date

11-1-1978

Document Type

Article

Medical Subject Headings

Antigens, Neoplasm; Cell Line; Electrophoresis, Polyacrylamide Gel; HLA Antigens; Humans; Lymphocyte Activation; Lymphocytes; Membrane Proteins; Neoplasm Proteins; Neoplasms, Experimental; Phytohemagglutinins; beta 2-Microglobulin

Disciplines

Life Sciences | Medicine and Health Sciences

Abstract

The proteins of [35S]methionine-labeled membranes of six human lymphoid cell lines were examined by electrophoresis in sodium dodecyl sulfate-polyacrylamide gradient slab gels in order to identify molecular differences among these tumors. The lymphoid cells were internally labeled with [35S]methionine, their membranes were isolated, and the reduced and alkylated membrane proteins were treated electrophoretically in sodium dodecyl sulfate-polyacrylamide gradient slab gels. The gel patterns of over 100 membrane proteins per cell were highly complex but reproducible and, in that sense, constituted fingerprints of the individual tumors. Several proteins occurred uniquely on one or a few tumors. Some protein bands were identified to be serologically recognized membrane antigens by electrophoresis of immunopurified antigen in parallel to membrane samples. p44,12, a complex of proteins with molecular weights of 44,000 and 12,000 (HLA-A and -B antigens and beta2-microglobulin), and p29,34, (HLA-D antigen) were identified in this manner. High-resolution sodium dodecyl sulfate-polyacrylamide gradient gel electrophoresis can be used to catalog and describe lymphocyte membrane proteins and perhaps to identify subsets of lymphoid cancers.

Rights and Permissions

Citation: Cancer Res. 1978 Nov;38(11 Pt 1):3604-10.

Related Resources

Link to Article in PubMed

Journal Title

Cancer research

PubMed ID

359126