Mutations in the Nuclear Lamin Proteins Resulting in Their Aberrant Assembly in the Cytoplasm

Overview

Journal EMBO J

Specialties Biotechnology
Molecular Biology

Date 1988 Aug 1

PMID 3056713

Citations 69

Authors

L Loewinger

F McKeon

Affiliations

Soon will be listed here.

Abstract

We have constructed a series of mutations in the human A lamin cDNA to identify and alter the nuclear localization signal using an in vivo functional assay system. The nuclear localization signal in the lamin proteins has both structural and functional similarities with that of the SV40 large T-antigen. Mutations within this functional domain result in the assembly of cytoplasmic tubular structures, and the behavior of these mutants suggests a post-translational dimerization of the lamin proteins prior to their transport into the nucleus. In the course of this work other regions of the carboxy terminus of the A/C lamin proteins have been implicated in the proper assembly and structure of the nuclear envelope.

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