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When pipelines run but coordinates fail: A simple spatial specificity check for false locality in post-GWAS analysis.

Created on 22 Jun 2026

Authors

Zheng Han, Hongcheng Zhu, Changzai Li

Published in

Journal of bioinformatics and computational biology. Volume 24. Issue 3. Pages 2671003. Epub Jun 12, 2026.

Abstract

Some post-GWAS analysis software can run to completion without reporting an error while producing results that are not biologically valid. We call this failure false locality: a result appears to be local to a gene or protein because it was produced from a regional window, but the window or its metadata points to the wrong genomic address. We identify three mechanisms. First, a genome-build address mismatch occurs when GRCh38 protein-QTL coordinates are used with GRCh37 outcome files; in our 91-sentinel audit, 66 coordinates moved by more than 100[Formula: see text]kb and 54 moved by more than 200[Formula: see text]kb after remapping. Second, non-specific regional noise occurs when significant P values persist after the analysis window is deliberately moved to a zero-overlap variant set. Third, location-label blindness occurs when software returns the same output after the declared coordinate label is changed while the SNP table is unchanged; in an official SMR/HEIDI CXCL10 test, the top SNP, SMR P value, and HEIDI P value remained identical across correct, wrong, and shifted labels. We propose a simple Change Test: a result should not be treated as local evidence unless the numerical output changes, weakens, or disappears when the analysis window or coordinate label is intentionally moved to a biologically wrong location. This standard turns software execution from a passive success signal into an explicit spatial-specificity check.

PMID:
42324819
Bibliographic data and abstract were imported from PubMed on 22 Jun 2026.

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