Protein
Sphingolipid long chain base-responsive protein LSP1
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Function
Together with PIL1, main component of eisosomes, structures at the cell periphery underneath the plasma membrane that mark the site of endocytosis. Negative regulator of cell wall integrity (CWI) in unstressed cells, probably by inhibiting protein kinase PKH1/PHK2 activity and regulating their downstream CWI pathways PKC1-MAP kinase pathway and protein kinase YPK1 pathway. Activity may be regulated by the transient increase of sphingolipid long chain bases (LCBs) during heat stress.
Sequence
MHRTYSLRNQRAPTAAELQAPPPPPSSTKSKFFGKASIASSFRKNAAGNFGPELARKLSQLVKTEKGVLRAMEVVASERREAAKQLSLWGADNDDDVSDVTDKLGVLIYELGELQDQFIDKYDQYRVTLKSIRNIEASVQPSRDRKEKITDEIAHLKYKDPQSTKIPVLEQELVRAEAESLVAEAQLSNITREKLKAAYSYMFDSLRELSEKFALIAGYGKALLELLDDSPVTPGEARPAYDGYEASRQIIMDAESALESWTLDMAAVKPTLSFHQTVDDVYEDEDGEEEEEPEIQNGDIPGQVVEEEEVEWTTEVPVDDEAHEADHHVSQNGHTSGSENI