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Primary structure analysis of an integral membrane glycoprotein of the nuclear pore.


ABSTRACT: The complete primary structure of an integral membrane glycoprotein of the nuclear pore was deduced from the cDNA sequence. The cDNA encodes a polypeptide of 204,205 D containing a 25-residue-long signal sequence, two hydrophobic segments that could function as transmembrane segments, and 13 potential N-linked oligosaccharide addition sites. Endoglycosidase H reduces the molecular mass by approximately 9 kD suggesting that not all of these 13 sites are used. We discuss possible models for the topology of this protein in the pore membrane as well as a possible role in the formation of pores and pore complexes.

SUBMITTER: Wozniak RW 

PROVIDER: S-EPMC2115607 | biostudies-other | 1989 Jun

REPOSITORIES: biostudies-other

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