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Erin L Rutherford, Leslie Carandang, Patrick T Ebbert, Alexandra N Mills, Jackson T Bowers, Laura Anne Lowery
Microtubule dynamics is regulated by plus end-tracking proteins (+TIPs), which localize to the plus ends of microtubules (MTs). We previously showed that TACC1 and TACC3, members of the transforming acidic coiled-coil protein family, can act as +TIPs to regulate MT dynamics in Xenopus laevis Here we characterize TACC2 as a +TIP that localizes to MT plus ends in front of EB1 and overlapping with TACC1 and TACC3 in multiple embryonic cell types. We also show that TACC2 can promote MT polymerization in mesenchymal cells but not neuronal growth cones, thus displaying cell-type specificity...
October 15, 2016: Molecular Biology of the Cell
Ivan H Still, Ananthalakshmy K Vettaikkorumakankauv, Anthony DiMatteo, Ping Liang
BACKGROUND: Examination of ancient gene families can provide an insight into how the evolution of gene structure can relate to function. Functional homologs of the evolutionarily conserved transforming acidic coiled coil (TACC) gene family are present in organisms from yeast to man. However, correlations between functional interactions and the evolution of these proteins have yet to be determined. RESULTS: We have performed an extensive database analysis to determine the genomic and cDNA sequences of the TACCs from phylogenetically diverse organisms...
June 18, 2004: BMC Evolutionary Biology
Nathalie Conte, Bénédicte Delaval, Christophe Ginestier, Alexia Ferrand, Daniel Isnardon, Christian Larroque, Claude Prigent, Bertrand Séraphin, Jocelyne Jacquemier, Daniel Birnbaum
The three human TACC (transforming acidic coiled-coil) genes encode a family of proteins with poorly defined functions that are suspected to play a role in oncogenesis. A Xenopus TACC homolog called Maskin is involved in translational control, while Drosophila D-TACC interacts with the microtubule-associated protein MSPS (Mini SPindleS) to ensure proper dynamics of spindle pole microtubules during cell division. We have delineated here the interactions of TACC1 with four proteins, namely the microtubule-associated chTOG (colonic and hepatic tumor-overexpressed gene) protein (ortholog of Drosophila MSPS), the adaptor protein TRAP (tudor repeat associator with PCTAIRE2), the mitotic serine/threonine kinase Aurora A and the mRNA regulator LSM7 (Like-Sm protein 7)...
November 6, 2003: Oncogene
C M Sadek, M Pelto-Huikko, M Tujague, K R Steffensen, M Wennerholm, J-A Gustafsson
Transforming acidic coiled-coil (TACC) proteins are hypothesized to play a role in normal cellular growth and differentiation and to be involved in centrosomal microtubule stabilization. Our current studies aim to delineate the expression pattern of TACC3 protein during cellular differentiation and in a variety of normal human tissues. TACC3 is known to be upregulated in differentiating erythroid progenitor cells following treatment with erythropoietin and is required for replication of hematopoietic stem cells...
May 2003: Gene Expression Patterns: GEP
Terence R Lappin, Robert N Mullan, J Peter Stewart, Neal A Morgan, Alexander Thompson, A Peter Maxwell
The AINT/ERIC/TACC genes encode novel proteins with a coiled coil domain at their C-terminus. The founding member of this expanding family of genes, transforming acidic coiled coil 1 (TACC1), was isolated from a BAC contig spanning the breast cancer amplicon-1 on 8p11. Transfection of cells in vitro with TACC1 resulted in anchorage-independent growth consistent with a more "neoplastic" phenotype. Database searches employing the human TACC1 sequence revealed other novel genes, TACC2 and TACC3, with substantial sequence homology particularly in the C-terminal regions encoding the coiled coil domains...
July 2002: Leukemia & Lymphoma
F Gergely, C Karlsson, I Still, J Cowell, J Kilmartin, J W Raff
We recently showed that the Drosophila transforming acidic coiled-coil (D-TACC) protein is located in the centrosome, interacts with microtubules, and is required for mitosis in the Drosophila embryo. There are three known human TACC proteins that share a conserved, C-terminal, coiled-coil region with D-TACC. These proteins have all been implicated in cancer, but their normal functions are unknown. We show that all three human TACC proteins are concentrated at centrosomes, but with very different characteristics: TACC1 is weakly concentrated at centrosomes during mitosis; TACC2 is strongly concentrated at centrosomes throughout the cell cycle; and TACC3 is strongly concentrated in a more diffuse region around centrosomes during mitosis...
December 19, 2000: Proceedings of the National Academy of Sciences of the United States of America
I H Still, P Vince, J K Cowell
We have recently identified a novel gene, TACC1 (transforming acidic coiled coil-containing gene 1), which is located close to FGFR1 within a region amplified in breast cancer on human chromosome 8p11. The coiled coil domain of this gene identified a series of cDNAs in the expressed sequence tag database, which suggested the existence of a family of TACC genes comprising at least three family members. We have now characterized the human and mouse TACC3 cDNAs, and demonstrate that this gene is upregulated in various cancer cell lines, and at Embryonic Day 15 in mice, suggesting that the TACC3 protein is involved in the control of cell growth and differentiation...
June 1, 1999: Genomics
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