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Dynamic properties of nuclear pore complex proteins in gp210 deficient cells
Author(s) -
Eriksson Charlotta,
Rustum Cecilia,
Hallberg Einar
Publication year - 2004
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2004.07.044
Subject(s) - nuclear pore , biogenesis , nucleoporin , microbiology and biotechnology , photobleaching , fluorescence recovery after photobleaching , nuclear protein , inner membrane , biology , chemistry , cytoplasm , cell nucleus , biophysics , nuclear transport , membrane , fluorescence , physics , biochemistry , gene , transcription factor , mitochondrion , quantum mechanics
Gp210, an integral membrane protein of the nuclear pore complex (NPC), is believed to be involved in NPC biogenesis. To test this hypothesis, we have investigated dynamic properties of the NPC and distribution of NPC proteins in NIH/3T3 cells lacking gp210. POM121 (the other integral NPC protein) and NUP107 (of the NUP107/160 complex) were correctly distributed at the nuclear pores in the absence of gp210. Furthermore, fluorescence recovery after photobleaching experiments showed that POM121 and NUP107 remained stably associated at the NPCs. We conclude that gp210 cannot be required for incorporation of POM121 or NUP107 or be required for maintaining NPC stability.