Please use this identifier to cite or link to this item:
|Title:||Interaction of wheat high-mobility-group proteins with four-way-junction DNA and characterization of the structure and expression of HMGA gene|
Manjunatha Kini, R.
|Citation:||Zhang, W., Wu, Q., Pwee, K.-H., Manjunatha Kini, R. (2003-01-15). Interaction of wheat high-mobility-group proteins with four-way-junction DNA and characterization of the structure and expression of HMGA gene. Archives of Biochemistry and Biophysics 409 (2) : 357-366. ScholarBank@NUS Repository. https://doi.org/10.1016/S0003-9861(02)00630-6|
|Abstract:||Plant high-mobility-group (HMG) chromosomal proteins are the most abundant and ubiquitous nonhistone proteins found in the nuclei of higher eukaryotes. There are only two families of HMG proteins, namely, HMGA and HMGB in plants. The cDNA encoding wheat HMGa protein was isolated and characterized. Wheat HMGA cDNA encodes a protein of 189 amino acid residues. At its N terminus, there is a histone H1-like structure, which is a common feature of plant HMGA proteins, followed by four AT-hook motifs. Polymerase chain reaction results show that the gene contains a single intron of 134 bp. All four AT-hook motifs are encoded by the second exon. Northern blot results show that the expression of HMGA gene is much higher in organs undergoing active cell proliferation. Gel retardation analysis show that wheat HMGa, b, c and histone H1 bind to four-way-junction DNA with high binding affinity, but affinity is dramatically reduced with increasing Mg2+ and Na+ ion concentration. Competition binding studies show that proteins share overlapping binding sites on four-way-junction DNA. HMGd does not bind to four-way-junction DNA. © 2002 Elsevier Science (USA). All rights reserved.|
|Source Title:||Archives of Biochemistry and Biophysics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 19, 2018
WEB OF SCIENCETM
checked on Sep 4, 2018
checked on Aug 31, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.