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Identification of a Novel Human Zinc Finger Gene, ZNF438, with Transcription Inhibition Activity
Zhong, Zhaomin,Wan, Bo,Qiu, Yun,Ni, Jun,Tang, Wenwen,Chen, Xinya,Yang, Yun,Shen, Suqin,Wang, Ying,Bai, Meirong,Lang, Qingyu,Yu, Long Korean Society for Biochemistry and Molecular Biol 2007 Journal of biochemistry and molecular biology Vol.40 No.4
There were many different families of zinc finger proteins that contained multiple cysteine and/or histidine residues and used zinc to stabilize their folds. The classical C2H2 zinc finger proteins were the founding members of this superfamily and were among the most abundant proteins in eukaryotic genomes. C2H2 proteins typically contained several C2H2 fingers that made tandem contacts along the DNA. Here we reported a novel C2H2 type zinc finger gene, ZNF438, which encoded 828 amino acids that formed five zinc finger domains. Bioinformatics analysis revealed that the ZNF438 was mapped to human chromosome 10p11.2 and shared 62% identity with rat and mouse homologues. RT-PCR analysis indicated that it was ubiquitously expressed in 18 human adult tissues. With immunofluorescence assay, it was shown that the exogenous Flag-tagged ZNF438 was located in nucleus of COS-7 cells. To further explore the function of ZNF438, we examined the transcriptional activity of ZNF438 protein by transfecting recombinant pM-ZNF438 into mammalian cells. The subsequent analysis based on the duel luciferase assay system showed that ZNF438 was a transcriptional repressor.
Identification of a Novel Human Zinc Finger Gene, ZNF438, with Transcription Inhibition Activity
( Zhao Min Zhong ),( Bo Wan ),( Yun Qiu ),( Jun Ni ),( Wen Wen Tang ),( Xin Ya Chen ),( Yun Yang ),( Su Qin Shen ),( Ying Wang ),( Mei Rong Bai ),( Qing Yu Lang ),( Long Yu ) 생화학분자생물학회 2007 BMB Reports Vol.40 No.4
Hai-Peng Xu,Wan-Zhong Lang,Xuan Zhang,Ya-Jun Guo 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
The charged poly(vinylidene fluoride) (PVDF) membranes were prepared by composite thermallyinduced phase separation (C-TIPS) method with perfluorosulfonic acid (PFSA) as additive. The resultsverify that the porosity, surface hydrophilicity and pure water permeation flux (JW) increase with theaddition of PFSA for the membranes. The highest JW of 507.2 1.2 L/(M2 H bar) is obtained for themembrane cast at 90 8C. Much higher casting temperature isn’t advantageous to improve JW value for thePVDF membranes. All membranes exhibit negative apparent zeta potential (zapp). The crystallinity in b phaseincreases as casting temperature increases for all PVDF membranes.
Liu-Liu Long,Ke Xia,Wan-Zhong Lang,Li-Ling Shen,Qiang Yang,Xi Yan,Ya-Jun Guo 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.51 No.-
The zirconia, alumina, and zirconia-alumina (xZr-Al) supported PtSnIn catalysts were prepared andcomparatively studied for propane dehydrogenation reaction. The structure–function relationships ofthe resultant catalysts are well elucidated upon several state-of-art physico-chemical characterizations. The results show that xZr-Al used as support for trimetallic PtSnIn catalysts exhibits the significantcatalytic performances. The PtSnIn/08Zr-Al catalyst has the highest Pt dispersion accompanied with thesmallest average Pt particles, and it presents the initial propane conversion and propylene selectivityabove 55.0% and 98.0% respectively. The initial propane conversions afterfive reaction–regenerationcycles are all above 55.0% and only decrease little ( 3%).
Han Wang,Zuo-Ming Wang,Xi Yan,Jun Chen,Wan-Zhong Lang,Ya-Jun Guo 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.52 No.-
Novel polyvinylidenefluoride (PVDF) hybrid ultrafiltration membranes with antifouling and antibacterialproperties are prepared by embedding N-halamine functionalized silica nanospheres (HFSNs). With theaddition of HFSNs, the antifouling properties of PVDF membranes are significantly improved. The resultsreveal that the highest pure water permeationflux of 559.8 L m 2 bar 1 h 1 is attained when the 0.6 wt%HFSNs is added in the casting solution. The membrane of M-3 with 0.9 wt% HFSNs addition shows thehighest sterilization ratios of 97.1% and 97.0% against (escherichia coli) E. coli and (staphylococcus aureus)S. aureus respectively. After 6 times of inhibition-activation cycles, the membrane still remains 72.3%against E.coli.