The gene encoding PBP74/CSA/motalin-1, a novel mouse hsp70, maps to mouse chromosome 18
1995
The 70-kDa heat shock proteins (hsp70) function in folding of peptides and the assembly and disassembly of protein complexes. They are encoded by a multigene family comprising both heat-inducible and constitutively expressed genes. Different family members function in different organelles: hsp70 members such as hsp70 and hsc70 are present in the cytoplasm, BiP/GRP78 in the endoplasmic reticulum, and GRP75 in the mitochondria. PBP74/CSA/motalin-1 is a novel mouse hsp70 protein that was identified by three different groups. PBP74 was found to be a peptide-binding protein implicated in antigen processing. CSA is an antigen specific for the CM strain, and motalin-1 is a protein associated with cellular mortality. 10 refs., 1 fig.
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