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计算分子生物
(
网络版
), 2012
,
1
,
1
-
6
Jisuan Fenzi Shengwu (Online), 2012, Vol.1, 1
-
6
http://cmb.5th.sophiapublisher.com
1
研究报告
Research Report
植物甜蛋白马宾灵
(Mabinlin )
的二级结构及其
B
细胞抗原表位预测
姚晶
1
,
顾文亮
1
,
夏启玉
2
,
胡新文
1
,
郭建春
2
1
海南大学农学院
,
海口
, 570228;
2
中国热带农业科学院热带生物技术研究所
,
海口
, 571101
通讯作者
: jianchunguoh@163.com;
作者
计算分子生物
, 2012
,
1
,
1
doi: 10.5376/cmb.cn.2012.01.0001
收稿日期:
2012
03
12
接受日期:
2012
05
18
发表日期:
2012
05
25
本文首次发表在《基因组学与医学生物学》
(2012
年第
31
卷第
2
154-159
)
上。现依据版权所有人授权的许可协议,采用
Creative Commons
Attribution License
协议对其进行授权,再次发表与传播。只要对原作有恰当的引用
,
版权所有人允许并同意第三方无条件的使用与传播。
建议最佳引用格式:
引用格式
(
中文
)
姚晶等
, 2012,
植物甜蛋白马宾灵
(Mabinlin )
的二级结构及其
B
细胞抗原表位预测
,
计算分子生物
(online) Vol.1 No.1 pp.1-6 (doi: 10.5376/cmb.cn.
2012.01.0001)
引用格式
(
英文
)
Yao et al., 2012, Prediction of the Secondary Structure and B Cell Epitopes of the Plant Sweet Protein Mabinlin
, Jisuan Fenzi Shengwu (online)
(Computational Molecular Biology) Vol.1 No.1 pp.1-6 (doi: 10.5376/cmb.cn.2012.01.0001)
马宾灵
(Mabinlin )
是中国所特有的植物甜蛋白,在目前已知的七种植物甜蛋白中具有最佳的热稳定性,将其作为
新型甜味剂有着广阔的市场前景。本研究以马宾灵的氨基酸序列为基础,采用
Garnier-Robson
方法和
Chou-Fasman
方法预测
马宾灵的二级结构,采用
Karplus-Schulz
方法预测马宾灵的蛋白质骨架区柔韧性,采用
Kyte-Doolittle
方法预测马宾灵的蛋
白质疏水性,采用
Emini
方法预测马宾灵的蛋白质表面可能性,采用
Jameson-Wolf
方法预测马宾灵的
B
细胞抗原表位。分
析结果表明,马宾灵的
A
链多形成转角和无规则卷曲结构,
A
链的
N
27~30
区段形成较柔软的蛋白质骨架结构,
A
链的
N
4~6
7~9
10~11
12~14
20~22
23~26
30~33
区段为抗原位点的可能性较大;马宾灵的
B
链多形成
β
折叠和转角
结构,
B
链的
N
0~7
9~13
28~29
33~34
40~45
53~54
55~57
区段为抗原位点的可能性较大。本研究以生物信息
学手段分析预测马宾灵的二级结构及其
B
细胞抗原表位,为设计马宾灵多克隆抗体以检测马宾灵在不同生物反应器中的表
达研究提供参考数据。
关键词
植物甜蛋白
;
马宾灵
;
二级结构
; B
细胞抗原表位
Prediction of the Secondary Structure and B Cell Epitopes of the Plant Sweet
Protein Mabinlin
Yao Jing
1
, Gu Wenliang
1
, Xia Qiyu
2
, Hu Xinwen
1
, Guo Jianchun
2
1 College of Agriculture, Hainan University, Haikou, 570228;
2 Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101
Corresponding author: jianchunguoh@163.com;
Authors
Abstract
Mabinlin is the uni
que plant sweet protein in China, and it has the best thermal stability of the seven plant sweet
proteins which have been known today. Mabinlin
may has a promising market to be a new food sweetener. Based on the amino
acid sequence of Mabinlin , the secon
dary structure of it was predicted with the methods of Garnier-Robson and Chou-Fasman, and
the flexiblity of the backbone structure of it was predicted with the Karplus-Schulz method, and the hydrophobicity of it was
predicted with the Kyte-Doolittle method, and the possibility of surface area of it was predicted with the Emini method, the B-cell
epitopes of it was predicted with the Jameson-Wolf method. The results show that the structure of the A-chain of Mabinlin mostly
consists of turns and random coils, and the 27~30 amino acid section from the N-terminal become a more flexible skeleton structure,
while the 4~6, 7~9, 10~11, 12~14, 20~22, 23~26 and 30~33 amino acid sections from the N-terminal are probably the key antigenic
sites. The structure of the B-chain of Mabinlin mostly consists of β
-sheet and turn regions, and the 0~7, 9~13, 28~29, 33~34, 40~45,
53~54 and 55~57 amino acid sections from the N-terminal may be the key antigenic sites. The bioinformatics analysis of this protain
may provide a reference for the design of polyclonal antibody against the Mabinlin which would be used to detect the expression
of Mabinlin in different bioreactors.
Keywords
Plant sweet protein; Mabinlin II; Secondary structure; B cell epitopes
植物甜蛋白是指自然界中存在的具有甜味或可 以引起甜味产生的蛋白质,它们通常来源于热带植物