Salmonid Olfactory System‐Specific Protein (N24) Exhibits Glutathione S‐Transferase Class Pi‐Like Structure

Salmonid Olfactory System‐Specific Protein (N24) Exhibits Glutathione S‐Transferase Class Pi‐Like Structure
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鲑鱼嗅觉系统特异性蛋白 (N24) 具有谷胱甘肽 S 转移酶 Pi 类结构

DOI:
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发表时间:
1999
影响因子:
4.7
通讯作者:
K. Yamauchi
K. Yamauchi
中科院分区:
医学2区
文献类型:
--
作者:
H. Kudo;H. Ueda;K. Mochida;S. Adachi;A. Hara;H. Nagasawa;Y. Doi;S. Fujimoto;K. Yamauchi

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摘要:通过生物化学和分子生物学技术对在湖相红鲑(Oncorhynchus nerka)中鉴定的鲑科动物嗅觉系统特异性蛋白(N24)进行了表征。N24是同源二聚体,通过凝胶过滤估计完整分子量为约43.3 kDa。此外,N24仅位于嗅觉组织的胞质组分中,如通过亚细胞分级所确定的。分离并测序了编码湖生红鲑N24的cDNA。该cDNA含有编码216个氨基酸残基的编码区,该蛋白的分子量计算为242,224.77。蛋白质和核苷酸测序证明N24和谷胱甘肽S-转移酶(GST; EC 2.5.1.18)pi类酶之间存在显著的同源性。北方分析表明,N24基因在湖相红鲑嗅上皮中表达,长度为950个碱基。嗅感受器细胞表现出强烈的杂交信号N24 mRNA在嗅上皮。N24在亲和纯化的GST柱实验中显示谷胱甘肽结合活性。本研究首次报道了鱼类嗅上皮GST的cDNA克隆。
Abstract: A salmonid olfactory system‐specific protein (N24) that has been identified in lacustrine sockeye salmon (Oncorhynchus nerka) was characterized by biochemical and molecular biological techniques. N24 is a homodimer, and the intact molecular mass is estimated as ∼43.3 kDa by gel filtration. Furthermore, N24 was located only in the cytosolic fraction of the olfactory tissues as determined by subcellular fractionation. cDNA encoding the lacustrine sockeye salmon N24 was isolated and sequenced. This cDNA contained a coding region encoding 216 amino acid residues and the molecular mass of this protein is calculated to be 242,224.77. The protein and nucleotide sequencing demonstrates the existence of a remarkable homology between N24 and glutathione S‐transferase (GST; EC 2.5.1.18) class pi enzymes. Northern analysis showed that N24 mRNA with a length of 950 bases is expressed in lacustrine sockeye salmon olfactory epithelium. Olfactory receptor cells showed strong hybridization signals for N24 mRNA in the olfactory epithelium. N24 demonstrated glutathione binding activity in affinity‐purified GST column experiments. The present study describes for the first time cDNA cloning of GST in fish olfactory epithelium.
DOI: 10.1016/s0021-9258(18)83497-4
发表时间: 1989
期刊: The Journal of biological chemistry
影响因子: --
作者:
Nef,P;Heldman,J;Lazard,D;Margalit,T;Jaye,M;Hanukoglu,I;Lancet,D
通讯作者: Lancet,D
DOI: 10.1007/978-1-4684-5134-4_10
发表时间: 1986
影响因子: --
作者:
Baron,J;Voigt,JM;Whitter,TB;Kawabata,TT;Knapp,SA;Guengerich,FP;Jakoby,WB
通讯作者: Jakoby,WB
DOI: 10.1042/bj2250375
发表时间: 1985
期刊: The Biochemical journal
影响因子: --
作者:
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通讯作者: Awasthi,YC
嗅觉的分子生理学。
DOI: 10.1152/ajpcell.1989.257.6.c1043
发表时间: 1989
期刊: The American journal of physiology
影响因子: --
作者:
Anholt,RR
通讯作者: Anholt,RR
从牛眼睫状上皮中分离编码 pi 类谷胱甘肽 S-转移酶 (GST) 的 cDNA。
DOI: 10.1016/0014-4835(92)90175-r
发表时间: 1992
影响因子: 3.4
作者:
Hernando,N;Martín-Alonso,JM;Ghosh,S;Coca-Prados,M
通讯作者: Coca-Prados,M