Serine protease of SPS plasma membrane amino acid sensor system; contains an inhibitory domain that dissociates in response to extracellular amino acids, freeing a catalytic domain to activate transcription factor Stp1p; other members are Ssy1p and Ptr3p [Source:SGD;Acc:S000003692]

Chromosome X: 126,853-128,952 reverse strand.

R64-1-1:BK006943.2

This gene has 1 transcript (splice variant) and 25 orthologues.

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