The protein aggregation myopathy Limb-Girdle Muscular Dystrophy 1D (LGMD1D) is caused by mutations of amino acids Phe89 or Phe93 of DNAJB6, a co-chaperone of the HSP70 anti-aggregation protein. The gene discussed is AQP1; the disease is autosomal dominant limb-girdle muscular dystrophy type 1D (DNAJB6).