Germin and Germin-like protein （GLP） have various proposed roles in plant developmental stages and stress- related processes. A novel GLP cDNA clone was isolated from a cDNA library of Tamarix hispida. ThGLP, coded ...Germin and Germin-like protein （GLP） have various proposed roles in plant developmental stages and stress- related processes. A novel GLP cDNA clone was isolated from a cDNA library of Tamarix hispida. ThGLP, coded 225aa, possesses conserved motif of plant germin and Germin-like protein. ThGLP belongs to true germin subfamily through phylogenetic analyses. Gene expression profiles in roots and leaves were evaluated using real-time quantitative RT-PCR. The results show that the gene was highly induced by drought, salt, low temperature, CdCl2 and abscisic acid treatments. Our results demonstrate that the ThGLP gene is expressed in leaves and roots, is involved in different abiotic stress re-sponses and controlled by an ABA-dependent signaling pathway.展开更多
In germinating wheat embryos, gl-OXO accumulation is localized in cell wall. It has been confirmed that this enzyme locally provides H2O2 to catalyze peroxide-mediated cross-linking of cell wall components in terminal...In germinating wheat embryos, gl-OXO accumulation is localized in cell wall. It has been confirmed that this enzyme locally provides H2O2 to catalyze peroxide-mediated cross-linking of cell wall components in terminal cellular dif ferentiation and plays an important role in enabling cells to retain their meris tematic and organogenic capacity. Using tail-PCR and DNA sequencing techniques, we isolated Germin-like Protein 3 promoter sequence(1 654 bp), from common wheat cultivar (yumai 18) genome. No GGGCGGG sequence exiting in promoter implies tha t germin-like protein 3 is not "house-keeping" protein. The presence of TGTCTC, an auxin response element and localizing at upstream -258, indicates that this p romoter is auxin-inducible. The TATA box situates in upstream -27^-32 and 5’-UTR consists of 95 bp.展开更多
目的探讨泛素特异性蛋白酶10(ubiquitin-specifi c protease 10,USP10)蛋白及其m RNA在人弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)与淋巴结反应性增生(reactive lymph node hyperplasia,RLH)中的表达及其临床意义。方...目的探讨泛素特异性蛋白酶10(ubiquitin-specifi c protease 10,USP10)蛋白及其m RNA在人弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)与淋巴结反应性增生(reactive lymph node hyperplasia,RLH)中的表达及其临床意义。方法选取70例人DLBCL及70例RLH组织,采用组织芯片和免疫组织化学染色检测USP10的蛋白表达,分析其与DLBCL分子亚型及DLBCL预后相关分子之间的关系,并采用GEO数据库分析USP10 m RNA表达水平。结果 USP10在DLBCL组织中的阳性表达率显著高于RLH组织的B淋巴细胞,在非生发中心亚型(non-germinal center B-cell-like type,nonGCB)DLBCL组织中的阳性表达率明显高于生发中心亚型(germinal center B-cell-like type,GCB)DLBCL组织;Spearman等级相关分析显示,USP10与DLBCL预后相关分子中的CD5、Bcl-2蛋白表达呈正相关,而与p53,c-Myc及Ki67蛋白表达无相关性;USP10 m RNA在DLBCL组织及RLH组织中的表达差异。结论 USP10在DLBCL组织中的表达明显增加,尤其是在预后较差的non-GCB亚型或CD5阳性或无Bcl-2阳性的DLBCL中,表明该蛋白是DLBCL患者预后不良的分子标记物之一。展开更多
基金This study was supported by national natural science foundation (Grant No. 30972386)Central university basic scientific business specific foundation (Grant No. DL09BA22)Genetically modified organisms breeding major projects (Grant No.2009ZX08009-098B)
文摘Germin and Germin-like protein （GLP） have various proposed roles in plant developmental stages and stress- related processes. A novel GLP cDNA clone was isolated from a cDNA library of Tamarix hispida. ThGLP, coded 225aa, possesses conserved motif of plant germin and Germin-like protein. ThGLP belongs to true germin subfamily through phylogenetic analyses. Gene expression profiles in roots and leaves were evaluated using real-time quantitative RT-PCR. The results show that the gene was highly induced by drought, salt, low temperature, CdCl2 and abscisic acid treatments. Our results demonstrate that the ThGLP gene is expressed in leaves and roots, is involved in different abiotic stress re-sponses and controlled by an ABA-dependent signaling pathway.
文摘In germinating wheat embryos, gl-OXO accumulation is localized in cell wall. It has been confirmed that this enzyme locally provides H2O2 to catalyze peroxide-mediated cross-linking of cell wall components in terminal cellular dif ferentiation and plays an important role in enabling cells to retain their meris tematic and organogenic capacity. Using tail-PCR and DNA sequencing techniques, we isolated Germin-like Protein 3 promoter sequence(1 654 bp), from common wheat cultivar (yumai 18) genome. No GGGCGGG sequence exiting in promoter implies tha t germin-like protein 3 is not "house-keeping" protein. The presence of TGTCTC, an auxin response element and localizing at upstream -258, indicates that this p romoter is auxin-inducible. The TATA box situates in upstream -27^-32 and 5’-UTR consists of 95 bp.
文摘目的探讨泛素特异性蛋白酶10(ubiquitin-specifi c protease 10,USP10)蛋白及其m RNA在人弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)与淋巴结反应性增生(reactive lymph node hyperplasia,RLH)中的表达及其临床意义。方法选取70例人DLBCL及70例RLH组织,采用组织芯片和免疫组织化学染色检测USP10的蛋白表达,分析其与DLBCL分子亚型及DLBCL预后相关分子之间的关系,并采用GEO数据库分析USP10 m RNA表达水平。结果 USP10在DLBCL组织中的阳性表达率显著高于RLH组织的B淋巴细胞,在非生发中心亚型(non-germinal center B-cell-like type,nonGCB)DLBCL组织中的阳性表达率明显高于生发中心亚型(germinal center B-cell-like type,GCB)DLBCL组织;Spearman等级相关分析显示,USP10与DLBCL预后相关分子中的CD5、Bcl-2蛋白表达呈正相关,而与p53,c-Myc及Ki67蛋白表达无相关性;USP10 m RNA在DLBCL组织及RLH组织中的表达差异。结论 USP10在DLBCL组织中的表达明显增加,尤其是在预后较差的non-GCB亚型或CD5阳性或无Bcl-2阳性的DLBCL中,表明该蛋白是DLBCL患者预后不良的分子标记物之一。
