Journal
BIOINFORMATICS
Volume -, Issue -, Pages -Publisher
OXFORD UNIV PRESS
DOI: 10.1093/bioinformatics/btac665
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Funding
- National Institutes of Health/National Cancer Institute [CA210950, CA264006, CA16672, R50CA221675]
- Cancer Prevention and Research Institute of Texas (CPRIT) [RP210042, RP160015]
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Reverse-Phase Protein Array (RPPA) is a platform for quantitatively measuring proteins in biological specimens. Converting raw data into normalized, analysis-ready data remains challenging. RPPA SPACE is an improved tool that enhances data quality and has simpler input requirements and higher flexibility.
Reverse-Phase Protein Array (RPPA) is a robust high-throughput, cost-effective platform for quantitatively measuring proteins in biological specimens. However, converting raw RPPA data into normalized, analysis-ready data remains a challenging task. Here, we present the RPPA SPACE (RPPA Superposition Analysis and Concentration Evaluation) R package, a substantially improved successor to SuperCurve, to meet that challenge. SuperCurve has been used to normalize over 170 000 samples to date. RPPA SPACE allows exclusion of poor- quality samples from the normalization process to improve the quality of the remaining samples. It also features a novel quality-control metric, 'noise', that estimates the level of random errors present in each RPPA slide. The noise metric can help to determine the quality and reliability of the data. In addition, RPPA SPACE has simpler input requirements and is more flexible than SuperCurve, it is much faster with greatly improved error reporting.
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