文献类型：期刊文章

作　　者：陈晓武[1] 施志仪[1] 程千千[1]

机构地区：[1]上海海洋大学生物技术研究中心,上海200090

出　　处：《Zoological Research》

基　　金：上海市科学技术委员会重点科技攻关项目(073205109);上海市重点学科建设项目(Y1101)

年　　份：2009

卷　　号：30

期　　号：2

起止页码：144-150

语　　种：中文

收录情况：AJ、BDHX、BDHX2008、BIOSISPREVIEWS、CAB、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2011_2012、DOAJ、JST、PUBMED、SCOPUS、ZGKJHX、ZR、核心刊

摘　　要：According to the conserved sequence of the ferritin gene, a homologous sequence was obtained from the EST database through a BLAST search against the GenBank database. This sequence was amplified with the method of RT-PCR, false sequencing was corrected, and full length eDNA of the ferritin subunit from the Chinese sturgeon was obtained. After being submitted to the GenBank database, the sequence accession number EU348782 was assigned. With the length of 896 bp, this eDNA includes entire coding regions of 53 lbp, which encodes 176 amino acids （aa）. The molecular weight was predicted to be 20339.9Mr and the theoretical isoelectric point 5.66. It shares 82.9% protein sequence homology with the ferritin of the Atlantic salmon. This gene is expressed in many organs of the Chinese sturgeon, for example, the liver, pancreas, muscle, brain, heart and gastric mucosa. The highest expression level was found in the pancreas and the heart, while the muscular tissue showed the lowest. Homology modeling was used to predict the 3-D structure of the protein, which included 5 alpha helices and 10 turns. The ferritin protein structure could be overlapped and showed high similarity with that of human, flog and bacteria. It was revealed that this kind of ferritin was highly conserved in structure and function.

关 键 词：Acipenser sinensis  FERRITIN BIOINFORMATICS

分 类 号：Q786]