The plant nuclear envelope protein MAF1 has an additional location at the Golgi and binds to a novel Golgi-associated coiled-coil protein

Planta ◽  
2005 ◽  
Vol 222 (6) ◽  
pp. 1028-1040 ◽  
Author(s):  
Shalaka Patel ◽  
Jelena Brkljacic ◽  
Frank Gindullis ◽  
Annkatrin Rose ◽  
Iris Meier
Keyword(s):  
Nuclear Envelope ◽  
Envelope Protein ◽  
Coiled Coil

scholarly journals CP250, a Novel Acidic Coiled Coil Protein of the Dictyostelium centrosome, Affects Growth, Chemotaxis, and the Nuclear Envelope

2009 ◽  
Vol 20 (20) ◽  
pp. 4348-4361 ◽  
Author(s):  
Rosemarie Blau-Wasser ◽  
Ursula Euteneuer ◽  
Huajiang Xiong ◽  
Berthold Gassen ◽  
Michael Schleicher ◽  
...  
Keyword(s):  
Amino Acids ◽  
Nuclear Envelope ◽  
Envelope Protein ◽  
Amorphous Matrix ◽  
Coiled Coil ◽  
Size Growth ◽  
Pericentriolar Material ◽  
Late Telophase ◽  
Cycle Dependent ◽  
Mutant Cells

The Dictyostelium centrosome is a nucleus associated body consisting of a box-shaped core surrounded by the corona, an amorphous matrix functionally equivalent to the pericentriolar material of animal centrosomes which is responsible for the nucleation and anchoring of microtubules. Here we describe CP250 a component of the corona, an acidic coiled coil protein that is present at the centrosome throughout interphase while disappearing during prophase and reappearing at the end of late telophase. Amino acids 756-1148 of the 2110 amino acids are sufficient for centrosomal targeting and cell cycle–dependent centrosome association. Mutant cells lacking CP250 are smaller in size, growth on bacteria is delayed, chemotaxis is altered, and development is affected, which, in general, are defects observed in cytoskeletal mutants. Furthermore, loss of CP250 affected the nuclear envelope and led to reduced amounts and altered distribution of Sun-1, a conserved nuclear envelope protein that connects the centrosome to chromatin.

scholarly journals Mutational analyses of fs(1)Ya, an essential, developmentally regulated, nuclear envelope protein in Drosophila.

Genetics ◽  
1995 ◽  
Vol 141 (4) ◽  
pp. 1473-1481 ◽  
Author(s):  
J Liu ◽  
K Song ◽  
M F Wolfner
Keyword(s):  
Cell Cycle ◽  
Embryonic Development ◽  
Nuclear Envelope ◽  
Envelope Protein ◽  
Chromatin Condensation ◽  
Cell Cycle Control ◽  
Nuclear Lamina ◽  
Mitotic Division ◽  
Developmentally Regulated ◽  
Egg Maturation

Abstract The fs(1)Ya protein (YA) is an essential, maternally encoded, nuclear lamina protein that is under both developmental and cell cycle control. A strong Ya mutation results in early arrest of embryos. To define the function of YA in the nuclear envelope during early embryonic development, we characterized the phenotypes of four Ya mutants alleles and determined their molecular lesions. Ya mutant embryos arrest with abnormal nuclear envelopes prior to the first mitotic division; a proportion of embryos from two leaky Ya mutants proceed beyond this but arrest after several abnormal divisions. Ya unfertilized eggs contain nuclei of different sizes and condensation states, apparently due to abnormal fusion of the meiotic products immediately after meiosis. Lamin is localized at the periphery of the uncondensed nuclei in these eggs. These results suggest that YA function is required during and after egg maturation to facilitate proper chromatin condensation, rather than to allow a lamin-containing nuclear envelope to form. Two leaky Ya alleles that partially complement have lesions at opposite ends of the YA protein, suggesting that the N- and C-termini are important for YA function and that YA might interact with itself either directly or indirectly.

The Nuclear Envelope Protein Emerin and Its Interacting Proteins

2016 ◽  
pp. 1-9
Author(s):  
Carol M Collins ◽  
Kimbre A Nee ◽  
James M Holaska
Keyword(s):  
Nuclear Envelope ◽  
Envelope Protein ◽  
Interacting Proteins

scholarly journals Loss of the integral nuclear envelope protein SUN1 induces alteration of nucleoli

Nucleus ◽  
2016 ◽  
Vol 7 (1) ◽  
pp. 68-83 ◽  
Author(s):  
Ayaka Matsumoto ◽  
Chiyomi Sakamoto ◽  
Haruka Matsumori ◽  
Jun Katahira ◽  
Yoko Yasuda ◽  
...  
Keyword(s):  
Nuclear Envelope ◽  
Envelope Protein

A Maternally Encoded Nuclear Envelope Protein Required for Embryonic Mitosis in Drosophila

1991 ◽  
Vol 56 (0) ◽  
pp. 719-727 ◽  
Author(s):  
H. Lin ◽  
K. Song ◽  
G.A. Hutcheson ◽  
C.E. Goutte ◽  
M.F. Wolfner
Keyword(s):  
Nuclear Envelope ◽  
Envelope Protein
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