Nuclear fibroblast growth factor-2 interacts specifically with splicing factor SF3a66

Verfasser / Beitragende:
[Susanne Gringel, Jeroen van Bergeijk, Kirsten Haastert, Claudia Grothe, Peter Claus]
Ort, Verlag, Jahr:
2004
Enthalten in:
Biological Chemistry, 385/12(2004-12-01), 1203-1208
Format:
Artikel (online)
ID: 378896083
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024 7 0 |a 10.1515/BC.2004.156  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.1515/BC.2004.156 
245 0 0 |a Nuclear fibroblast growth factor-2 interacts specifically with splicing factor SF3a66  |h [Elektronische Daten]  |c [Susanne Gringel, Jeroen van Bergeijk, Kirsten Haastert, Claudia Grothe, Peter Claus] 
520 3 |a Fibroblast growth factor 2 (FGF-2) has a dual role as a classical extracellular signaling protein and as an intracellular factor. Isoforms of FGF-2, resulting from alternatively used start codons on one mRNA species, locate differentially to nuclear compartments. In this study we aimed to analyze functions of intracellular FGF-2 by identification of interacting proteins. We identified the 66-kDa subunit of splicing factor 3a (SF3a66) as a binding partner in a yeast two-hybrid screen and confirmed this interaction by pull-down assays. The splicing factor interacted with the 18-kDa (FGF-218) and with the 23-kDa (FGF-223) isoforms, indicating an interaction with a domain common to both isoforms. Moreover, FGF-2 interacted with the C-terminus of SF3a66, a sequence that has not previously been assigned a functional role. In a functional neurite outgrowth assay, SF3a66 enhanced neurite lengths similar to FGF-218. We have previously identified the spliceosomal assembly factor survival of motoneuron (SMN) protein as a protein interacting specifically with the FGF-223 isoform [Claus et al., J. Biol. Chem. 278 (2003), 479-485]. The identification of two FGF-2 interacting proteins from the same biochemical pathway suggests a novel intranuclear role of FGF-2. 
540 |a ©2004 by Walter de Gruyter Berlin New York 
690 7 |a Biochemistry  |2 nationallicence 
690 7 |a Molecular biology  |2 nationallicence 
690 7 |a Cellular biology  |2 nationallicence 
690 7 |a fibroblast growth factor 2 (FGF-2)  |2 nationallicence 
690 7 |a growth factor signal transduction  |2 nationallicence 
690 7 |a intracellular growth factor  |2 nationallicence 
690 7 |a survival of motoneuron protein (SMN)  |2 nationallicence 
700 1 |a Gringel  |D Susanne  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany  |4 aut 
700 1 |a van Bergeijk  |D Jeroen  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany  |4 aut 
700 1 |a Haastert  |D Kirsten  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany and Center for Systems Neuroscience (ZSN) Hannover, OE 4140, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany  |4 aut 
700 1 |a Grothe  |D Claudia  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany and Center for Systems Neuroscience (ZSN) Hannover, OE 4140, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany  |4 aut 
700 1 |a Claus  |D Peter  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany and Center for Systems Neuroscience (ZSN) Hannover, OE 4140, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany  |4 aut 
773 0 |t Biological Chemistry  |d Walter de Gruyter  |g 385/12(2004-12-01), 1203-1208  |x 1431-6730  |q 385:12<1203  |1 2004  |2 385  |o bchm 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Gringel  |D Susanne  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a van Bergeijk  |D Jeroen  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Haastert  |D Kirsten  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany and Center for Systems Neuroscience (ZSN) Hannover, OE 4140, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Grothe  |D Claudia  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany and Center for Systems Neuroscience (ZSN) Hannover, OE 4140, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Claus  |D Peter  |u Department of Neuroanatomy, Hannover Medical School, D-30625 Hannover, Germany and Center for Systems Neuroscience (ZSN) Hannover, OE 4140, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Biological Chemistry  |d Walter de Gruyter  |g 385/12(2004-12-01), 1203-1208  |x 1431-6730  |q 385:12<1203  |1 2004  |2 385  |o bchm 
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