outer mitochondrial membrane protein porin 1,plasmalemmal porin,PORIN,porin 31HL,porin 31HM,sperm binding protein 1a,VDAC-1,voltage-dependent anion-selective channel protein 1.
Forms a channel through the mitochondrial outer membrane and also the plasma membrane. The channel at the outer mitochondrial membrane allows diffusion of small hydrophilic molecules, in the plasma membrane it is involved in cell volume regulation and ap