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- 저자 : Wang Ningxin (검색결과 2 건)
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Yang Wenwen,Chu Xu,Li Jie,Wang Ningxin 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.1
Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) is now emerging as genetic model organism for development and genetics research. As a parasitic insect, the egg, larval, pupal, and early adult developmental stages of N. vitripennis occur within the enclosed fly pupae, which differ a lot from the life cycle of other insects that undergo complete metamorphosis. Previous report on the life table of N. vitripennis was based on females only. In this study, the two-sex life table approach was used to examine the parasitic efficiency of N. vitripennis within the pupae of Musca domestica L. (Diptera: Muscidae), and the influence of low temperature and the endosymbiotic bacteria Wolbachia on wasp population growth were investigated. Wolbachia could improve the fecundity of N. vitripennis and prolong the host life history. We propose the preservation of M. domestica pupae at 4 ◦ C for 15 days is suitable in practical use. Age-stage, two-sex life table analysis revealed the stage structure and variability of N. vitripennis population growth, and also provide useful information about the effects of Wolbachia on its reproduction and parasitism of M. domestica.
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Identification a novel de novo RUNX2 frameshift mutation associated with cleidocranial dysplasia
Gong Lei,Odilov Bekzod,Han Feng,Liu Fuqiang,Sun Yujing,Zhang Ningxin,Zuo Xiaolin,Yang Jiaojiao,Wang Shouyu,Hou Xinguo,Ren Jianmin 한국유전학회 2022 Genes & Genomics Vol.44 No.6
Background: Cleidocranial dysplasia (CCD) is a rare genetic disorder affecting bone and cartilage development. Clinical features of CCD comprise short stature, delayed ossification of craniofacial structures with numerous Wormian bones, underdeveloped or aplastic clavicles and multiple dental anomalies. Several studies have revealed that CCD development is strongly linked with different mutations in runt-related transcription factor 2 (RUNX2) gene. Objective: Identification and functional characterization of RUNX2 mutation associated with CCD. Methods: We performed genetic testing of a patient with CCD using whole exome sequencing and found a novel RUNX2 frameshift mutation: c.1550delT in a sporadic case. We also compared the functional activity of the mutant and wild-type RUNX2 through immunofluorescence microscopy and osteocalcin promoter luciferase assay. Results: We found a novel RUNX2 frameshift mutation, c.1550delT (p.Trp518Glyfs*60). Both mutant RUNX2 and wild-type RUNX2 protein were similarly confined in the nuclei. The novel mutation caused abrogative transactivation activity of RUNX2 on osteocalcin promoter. Conclusions: We explored a novel RUNX2 deletion/frameshift mutation in a sporadic CCD patient. This finding suggests that the VWRPY domain may play a key role in RUNX2 transactivation ability.
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