title: Overlapping expression pattern of the actin organizers Spir-1 and formin-2 in the developing mouse nervous system and the adult brain.
abstract: The Wiskott-Aldrich homology domain 2 (WH2) family protein Spir and the formin Cappuccino belong to two distinct classes of actin organizers. Despite their functional classification as actin organizers, a major defect of Drosophila spire and cappuccino mutant oocytes is a failure in the orientation of microtubule plus ends towards the posterior pole. Mammalian homologues of spire are the spir-1 and spir-2 genes. The mouse and human formin-1 and formin-2 genes have high similarity to the cappuccino gene. The mouse formin-2 gene has been found to be expressed in the developing nervous system and in neuronal cells of the adult brain. By analyzing the expression of the spir-1 gene we show that spir-1 and formin-2 have a nearly identical expression pattern during mouse embryogenesis and in the adult brain. In mouse embryos both genes are expressed in the developing nervous system. In the adult brain high expression of the genes was found in the Purkinje cells of the cerebellum and in neuronal cells of the hippocampus and dentate gyrus.
authors.affiliation: Theodor-Boveri-Institut (Biozentrum), Universität Würzburg, Physiologische Chemie I, Am Hubland, 97074 Würzburg, Germany.
authors.forename: Nina
authors.initials: N
authors.lastname: Schumacher
authors.forename: Johanna M
authors.initials: JM
authors.lastname: Borawski
authors.forename: Cornelia B
authors.initials: CB
authors.lastname: Leberfinger
authors.forename: Manfred
authors.initials: M
authors.lastname: Gessler
authors.forename: Eugen
authors.initials: E
authors.lastname: Kerkhoff
mesh_terms: D000199:Actins / Q000378:metabolism; D000818:Animals; D001921:Brain / Q000378:metabolism*; D002352:Carrier Proteins / Q000235:genetics; D003598:Cytoskeletal Proteins; D029721:Drosophila Proteins / Q000235:genetics; D017403:In Situ Hybridization; D051379:Mice / Q000196:embryology* / Q000235:genetics / Q000378:metabolism; D008840:Microfilament Proteins / Q000096:biosynthesis* / Q000235:genetics; D009419:Nerve Tissue Proteins / Q000096:biosynthesis* / Q000235:genetics; D009420:Nervous System / Q000196:embryology* / Q000378:metabolism; D020320:Oligoribonucleotides, Antisense / Q000235:genetics; D017434:Protein Structure, Tertiary; D011689:Purkinje Cells / Q000378:metabolism
chemical_list: D000199:Actins; D002352:Carrier Proteins; D003598:Cytoskeletal Proteins; D029721:Drosophila Proteins; D008840:Microfilament Proteins; D009419:Nerve Tissue Proteins; D020320:Oligoribonucleotides, Antisense; C493004:Spire1 protein, mouse; C491671:Waspip protein, mouse; C402385:spir protein, Drosophila