similarity:Belongs to the spectrin family.,similarity:Contains 1 PH domain.,similarity:Contains 2 CH (calponin-homology) domains.,similarity:Contains 31 spectrin repeats.,subcellular location:Detected prominently in the outer segments of photoreceptor rods and cones and in the basolateral membrane and cytosol of gastric epithelial cells.,subunit:Probably associates with an alpha chain.,tissue specificity:Expressed at very low levels in many tissues, with strongest expression in cerebellum, spinal cord, stomach, pituitary gland, liver, pancreas, salivary gland, kidney, bladder, and heart.,