Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to Stormorken syndrome ?
    ### Response:
    Stormorken syndrome is caused by a mutation in the STIM1 gene. The protein produced from this gene is involved in controlling the entry of positively charged calcium atoms (calcium ions) into cells. The STIM1 protein recognizes when calcium ion levels are low and stimulates the flow of ions into the cell through special channels in the cell membrane called calcium-release activated calcium (CRAC) channels.
    