Purification and Characterisation of a Pore Protein of the Outer Mitochondrial Membrane from Neurospora crassa
Year: 1982
Type: article
Abstract: The major protein of the outer mitochondrial membrane of Neurospora was purified. On dodecylsulfate-containing gels it displayed a single band with an apparent molecular weight of 31 000. Reconstitution experiments with artificial lipid bilayers showed that this protein forms pores. Pore conductance was dependent on the voltage across the membrane. The protein inserted into the membrane in an oriented fashion, the membrane current being dependent on the sign of the voltage. Single pore conductance was 5nS, suggesting a diameter of 2 nm of the open pore. This mitochondrial protein shows a number of similarities to the outer membrane porins of gram-negative bacteria.
Source: European Journal of Biochemistry
Authors: Helmut FREITAG, Walter NEUPERT, Roland BENZ
Institutions: University of Göttingen, University of Konstanz
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W1978370714