HiC-spector: a matrix library for spectral and reproducibility analysis of Hi-C contact maps.

HiC-spector: a matrix library for spectral and reproducibility analysis of Hi-C contact maps.
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DOI:
10.1093/bioinformatics/btx152
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发表时间:
2017-07-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
通讯作者:
Gerstein M
Gerstein M
中科院分区:
其他
文献类型:
--
作者:
Yan KK;Yardimci GG;Yan C;Noble WS;Gerstein M

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Hi-C 等基于全基因组邻近连接的检测方法为基因组 3D 组织打开了一扇窗。在此过程中,它们呈现了与传统一维信号轨道不同的数据结构。为了利用 Hi-C 接触图的 2D 性质,光谱分析等矩阵技术特别有用。在这里,我们介绍 HiC-spector,这是用于分析 Hi-C 接触图的矩阵相关函数的集合。特别是,我们引入了一种新颖的再现性度量,用于基于谱分解来量化接触图之间的相似性。该指标成功地将来自生物复制、伪复制和不同细胞类型的 Hi-C 数据映射的接触图分开。 Julia 和 Python 源代码以及详细文档可在 https://github.com/gersteinlab/HiC-spector 获取。 补充数据可在生物信息学在线获取。
Genome-wide proximity ligation based assays like Hi-C have opened a window to the 3D organization of the genome. In so doing, they present data structures that are different from conventional 1D signal tracks. To exploit the 2D nature of Hi-C contact maps, matrix techniques like spectral analysis are particularly useful. Here, we present HiC-spector, a collection of matrix-related functions for analyzing Hi-C contact maps. In particular, we introduce a novel reproducibility metric for quantifying the similarity between contact maps based on spectral decomposition. The metric successfully separates contact maps mapped from Hi-C data coming from biological replicates, pseudo-replicates and different cell types. Source code in Julia and Python, and detailed documentation is available at https://github.com/gersteinlab/HiC-spector. Supplementary data are available at Bioinformatics online.
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