期刊
PHYSIOLOGICAL GENOMICS
卷 7, 期 2, 页码 97-104出版社
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/physiolgenomics.00040.2001
关键词
microarrays; human tissues; gene expression; bioinformatics
资金
- NCI NIH HHS [CA-80084] Funding Source: Medline
- NIDDK NIH HHS [DK-58533, DK-36031, DK-58849, DK-09987] Funding Source: Medline
- NINDS NIH HHS [NS-16367] Funding Source: Medline
This study creates a compendium of gene expression in normal human tissues suitable as a reference for defining basic organ systems biology. Using oligonucleotide microarrays, we analyze 59 samples representing 19 distinct tissue types. Of similar to 7,000 genes analyzed, 451 genes are expressed in all tissue types and designated as housekeeping genes. These genes display significant variation in expression levels among tissues and are sufficient for discerning tissue-specific expression signatures, indicative of fundamental differences in biochemical processes. In addition, subsets of tissue-selective genes are identified that define key biological processes characterizing each organ. This compendium highlights similarities and differences among organ systems and different individuals and also provides a publicly available resource (Human Gene Expression Index, the HuGE Index, http:// www. hugeindex. org) for future studies of pathophysiology.
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