FH3, a domain found in formins, targets the fission yeast formin Fus1 to the projection tip during conjugation
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FH3, a domain found in formins, targets the fission yeast formin Fus1 to the projection tip during conjugation. / Petersen, J; Nielsen, O; Egel, R; Hagan, I M; Nielsen, Olaf.
In: Journal of Cell Biology, Vol. 141, No. 5, 01.06.1998, p. 1217-28.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - FH3, a domain found in formins, targets the fission yeast formin Fus1 to the projection tip during conjugation
AU - Petersen, J
AU - Nielsen, O
AU - Egel, R
AU - Hagan, I M
AU - Nielsen, Olaf
PY - 1998/6/1
Y1 - 1998/6/1
N2 - Formins are involved in diverse aspects of morphogenesis, and share two regions of homology: FH1 and FH2. We describe a new formin homology region, FH3. FH3 is an amino-terminal domain that differs from the Rho binding site identified in Bni1p and p140mDia. The Schizosaccharomyces pombe formin Fus1 is required for conjugation, and is localized to the projection tip in cells of mating pairs. We replaced genomic fus1+ with green fluorescent protein (GFP)- tagged versions that lacked either the FH1, FH2, or FH3 domain. Deletion of any FH domain essentially abolished mating. FH3, but neither FH1 nor FH2, was required for Fus1 localization. An FH3 domain-GFP fusion protein localized to the projection tips of mating pairs. Thus, the FH3 domain alone can direct protein localization. The FH3 domains of both Fus1 and the S. pombe cytokinesis formin Cdc12 were able to localize GFP to the spindle pole body in half of the late G2 cells in a vegetatively growing population. Expression of both FH3-GFP fusions also affected cytokinesis. Overexpression of the spindle pole body component Sad1 altered the distribution of both Sad1 and the FH3-GFP domain. Together these data suggest that proteins at multiple sites can interact with FH3 domains.
AB - Formins are involved in diverse aspects of morphogenesis, and share two regions of homology: FH1 and FH2. We describe a new formin homology region, FH3. FH3 is an amino-terminal domain that differs from the Rho binding site identified in Bni1p and p140mDia. The Schizosaccharomyces pombe formin Fus1 is required for conjugation, and is localized to the projection tip in cells of mating pairs. We replaced genomic fus1+ with green fluorescent protein (GFP)- tagged versions that lacked either the FH1, FH2, or FH3 domain. Deletion of any FH domain essentially abolished mating. FH3, but neither FH1 nor FH2, was required for Fus1 localization. An FH3 domain-GFP fusion protein localized to the projection tips of mating pairs. Thus, the FH3 domain alone can direct protein localization. The FH3 domains of both Fus1 and the S. pombe cytokinesis formin Cdc12 were able to localize GFP to the spindle pole body in half of the late G2 cells in a vegetatively growing population. Expression of both FH3-GFP fusions also affected cytokinesis. Overexpression of the spindle pole body component Sad1 altered the distribution of both Sad1 and the FH3-GFP domain. Together these data suggest that proteins at multiple sites can interact with FH3 domains.
KW - Actins
KW - Amino Acid Sequence
KW - Binding Sites
KW - Fungal Proteins
KW - Green Fluorescent Proteins
KW - Luminescent Proteins
KW - Molecular Sequence Data
KW - Recombinant Fusion Proteins
KW - Schizosaccharomyces
KW - Schizosaccharomyces pombe Proteins
KW - Sequence Homology, Amino Acid
KW - Structure-Activity Relationship
M3 - Journal article
C2 - 9606213
VL - 141
SP - 1217
EP - 1228
JO - Journal of Cell Biology
JF - Journal of Cell Biology
SN - 0021-9525
IS - 5
ER -
ID: 33576883