VariCarta: A Comprehensive Database of Harmonized Genomic Variants Found in Autism Spectrum Disorder Sequencing Studies.
VariCarta gives BCBAs a ready gene list to combine with behavioral data for richer autism assessments.
01Research in Context
What this study did
de Vega et al. (2019) built a free online library called VariCarta. It pulls DNA changes found in autism studies into one clean list. The team removed duplicate reports so researchers can download a single, trusted set of variants.
What they found
The final catalog holds about 170,000 unique variants linked to autism. Each entry keeps the original study name, lab method, and gene location. No therapy results are given; the paper is purely a data tool.
How this fits with other research
Panpan et al. (2025) show that autism research is booming, especially in language and tech tools. VariCarta feeds that boom by giving DNA data ready for those new studies.
Berkovits et al. (2025) and MacFarland et al. (2025) offer fresh behavioral data sets and online coding tools. Pairing VariCarta’s gene list with these behavioral sets lets teams ask how DNA differences line up with social or emotion scores.
Caçola et al. (2017) argue that autism and developmental coordination disorder look different on behavior checks. VariCarta can now be mined to see if the same or distinct genes pop up in kids given both labels, turning the behavioral claim into a genetic test.
Why it matters
If you run or join a multi-assessment clinic, bookmark VariCarta. When a parent asks about genetic findings, you can check whether their child’s variant shows up in the database and link it to current behavioral data like the BOSCC or Emotion Regulation Checklist. This turns a vague lab report into a concrete discussion point for your next team meeting.
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02At a glance
03Original abstract
Recent years have seen a boom in the application of the next-generation sequencing technology to the study of human disorders, including Autism Spectrum Disorder (ASD), where the focus has been on identifying rare, possibly causative genomic variants in ASD individuals. Because of the high genetic heterogeneity of ASD, a large number of subjects is needed to establish evidence for a variant or gene ASD-association, thus aggregating data across cohorts and studies is necessary. However, methodological inconsistencies and subject overlap across studies complicate data aggregation. Here we present VariCarta, a web-based database developed to address these challenges by collecting, reconciling, and consistently cataloging literature-derived genomic variants found in ASD subjects using ongoing semi-manual curation. The careful manual curation combined with a robust data import pipeline rectifies errors, converts variants into a standardized format, identifies and harmonizes cohort overlaps, and documents data provenance. The harmonization aspect is especially important since it prevents the potential double counting of variants, which can lead to inflation of gene-based evidence for ASD-association. The database currently contains 170,416 variant events from 10,893 subjects, collected across 61 publications, and reconciles 16,202 variants that have been reported in literature multiple times. VariCarta is freely accessible at http://varicarta.msl.ubc.ca. Autism Res 2019, 12: 1728-1736. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: The search for genetic factors underlying Autism Spectrum Disorder (ASD) yielded numerous studies reporting potentially causative genomic variants found in ASD individuals. However, methodological differences and subject overlap across studies complicate the assembly of these data, diminishing its utility and accessibility. We developed VariCarta, a web-based database that aggregates carefully curated, annotated, and harmonized literature-derived variants identified in individuals with ASD using ongoing semi-manual curation.
Autism research : official journal of the International Society for Autism Research, 2019 · doi:10.1002/aur.2236