caa a22 4500 467901597 CHVBK 20180406152820.0 cr unu---uuuuu 170328e20061101xx s 000 0 eng 10.1007/s00299-006-0195-5 doi (NATIONALLICENCE)springer-10.1007/s00299-006-0195-5 Novel calcium-binding GTPase (AtCBG) involved in ABA-mediated salt stress signaling in Arabidopsis [Elektronische Daten] [Kandakumar Jayasekaran, Kyung-Nam Kim, Munusamy Vivekanandan, Jeong Shin, Sung Ok] We have identified a novel Ca2+-signal sensing GTPase (643 amino acid residues with an estimated molecular mass of 79kDa) from the Arabidopsis genome database. This protein contains a RHO-like GTPase domain at the N-terminus (15-184 amino acids) and two calcium-binding EF-hand motifs (199-227 and 319-347 amino acids, respectively). It has the capability to bind calcium and hydrolyze GTP; in addition, its GTPase activity is regulated by changes in Ca2+ concentration. The expression of this gene was induced by ABA and salt stresses, and specific knock-out mutants were highly sensitive to ABA and salt treatments. These findings suggest that this protein is a novel ABA- and salt stress-related Ca2+ signal transducer. Springer-Verlag, 2006 Abiotic stress nationallicence Ca2+ nationallicence GTP-binding nationallicence Regulation of gene expression nationallicence Signal transduction nationallicence Jayasekaran Kandakumar School of Life Sciences and Biotechnology, Korea University, 136-701, Seoul, Korea aut Kim Kyung-Nam Department of Molecular Biology, Sejong University, 143-747, Seoul, Korea aut Vivekanandan Munusamy Department of Biotechnology, Bharathidasan University, 620024, Tiruchirappalli, India aut Shin Jeong School of Life Sciences and Biotechnology, Korea University, 136-701, Seoul, Korea aut Ok Sung School of Life Sciences and Biotechnology, Korea University, 136-701, Seoul, Korea aut Plant Cell Reports Springer-Verlag 25/11(2006-11-01), 1255-1262 0721-7714 25:11<1255 2006 25 299 https://doi.org/10.1007/s00299-006-0195-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00299-006-0195-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jayasekaran Kandakumar School of Life Sciences and Biotechnology, Korea University, 136-701, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Kyung-Nam Department of Molecular Biology, Sejong University, 143-747, Seoul, Korea aut NATIONALLICENCE 700 1- Vivekanandan Munusamy Department of Biotechnology, Bharathidasan University, 620024, Tiruchirappalli, India aut NATIONALLICENCE 700 1- Shin Jeong School of Life Sciences and Biotechnology, Korea University, 136-701, Seoul, Korea aut NATIONALLICENCE 700 1- Ok Sung School of Life Sciences and Biotechnology, Korea University, 136-701, Seoul, Korea aut NATIONALLICENCE 773 0- Plant Cell Reports Springer-Verlag 25/11(2006-11-01), 1255-1262 0721-7714 25:11<1255 2006 25 299 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer