aPAGe

A friendly graphical user interface has been designed, and users can carry out different kinds of information by three levels of queries: (1) the basic search use the classical keywords or sequence identifiers; (2) the original advanced search engine allows to combine (by using logical operators) numerous criteria: (a) keywords (textual comparison) related to the pCDS's function, family domains and cellular localization; (b) physico-chemical characteristics (numerical comparison) such as isoelectric point or molecular weight and structural criteria such as the nucleic length or the number of transmembrane helix (TMH); (c) similarity scores with Escherichia coli and 10 species phylogenetically close to B. melitensis; (3) complex queries can be performed by using a SQL field, which allows all queries respecting the database's structure.本研究设计了一款友好的图形用户界面（Graphical User Interface, GUI），用户可通过三级查询完成各类信息检索： (1) 基础检索：采用经典关键词或序列标识符进行检索； (2) 高级检索：原生高级检索引擎支持通过逻辑运算符组合多项检索条件： (a) 与pCDS功能、家族结构域及细胞定位相关的关键词（文本比对）； (b) 理化特性（数值比对）：如等电点、分子量；结构参数：如核酸长度、跨膜螺旋（Transmembrane Helix, TMH）的数量； (c) 与大肠杆菌（Escherichia coli）及10种系统发育邻近羊布鲁氏菌（B. melitensis）的相似性评分； (3) 复合查询：可通过结构化查询语言（Structured Query Language, SQL）字段实现，支持所有符合数据库结构的查询操作。

搜集汇总

背景与挑战

背景概述

aPAGe数据集提供了一个友好的图形用户界面，支持用户通过三层查询方式检索信息：包括基础关键词搜索、结合多种标准的高级搜索以及基于SQL的复杂查询。