Lipid
rafts are membrane microdomains rich in cholesterol, glycosphingolipids, and
certain proteins that are highly organised. They play a role in biological
activities in a variety of cell types, including mast cells (MCs). The protein
composition of the MC lipid raft was determined utilising qualitative mass
spectrometric analysis of the proteome extracted from detergent-resistant
membrane fractions from RBL-2H3 MCs. A total of 949 lipid raft related proteins
were discovered using two separate post-isolation treatment approaches. The
bulk of these MC lipid raft proteins have already been documented in the
RaftProtV2 database and are among the most frequently cited and experimentally
validated lipid raft proteins. proteins. Furthermore, almost half of the
proteins discovered showed lipid modifications and/or transmembrane domains.
The proteins were shown to be connected with cellular membrane compartments and
biological and molecular functions such as regulation, localisation, binding,
catalytic activity, and stimulus response after they were classified into
functional categories. Furthermore, functional enrichment analysis revealed
that identified proteins are intimately involved in numerous areas of MC
biological activities, particularly those related to controlled secretion,
macromolecule complex organization/stabilization, and so on.
Author (s) Details
Edismauro Garcia Freitas Filho
Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão
Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão
Preto, SP, zip code 14049-900, Brazil.
Luiz Augusto Marin Jaca
Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão
Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão
Preto, SP, zip code 14049-900, Brazil.
Lilian Cristiane Baeza
Molecular Biology Laboratory, Biological Science Institute, Federal
University of Goiás, Samambaia Campus II, ICB2, room 206, Goiânia, GO, zip code
74690-900, Brazil.
Célia Maria de Almeida Soares
Molecular Biology Laboratory, Biological Science Institute, Federal
University of Goiás, Samambaia Campus II, ICB2, room 206, Goiânia, GO, zip code
74690-900, Brazil.
Clayton Luiz Borges
Molecular Biology Laboratory, Biological Science Institute, Federal
University of Goiás, Samambaia Campus II, ICB2, room 206, Goiânia, GO, zip code
74690-900, Brazil.
Constance Oliver
Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão
Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão
Preto, SP, zip code 14049-900, Brazil.
Maria Célia Jamur
Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão
Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão
Preto, SP, zip code 14049-900, Brazil.
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