SLIT3

Chr 5

slit guidance ligand 3

Also known as: MEGF5, SLIL2, SLIT1, Slit-3, slit2

The SLIT3 protein is secreted and acts as a molecular guidance cue in cellular migration through interaction with roundabout homolog receptors. Mutations cause autosomal dominant congenital heart disease and autosomal recessive intellectual developmental disorder with cardiac arrhythmia. The gene is highly constrained against loss-of-function variants (LOEUF 0.318), indicating intolerance to protein-disrupting mutations.

OMIMResearchSummary from RefSeq, UniProt
LOFmechanismLOEUF 0.32
Clinical SummarySLIT3
Population Constraint (gnomAD)
Moderately constrained gene (pLI 0.75) — some intolerance to loss-of-function variants.
📋
ClinVar Variants
18 unique Pathogenic / Likely Pathogenic· 239 VUS of 347 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint
0.32LOEUF
pLI 0.752
Z-score 6.67
OE 0.21 (0.150.32)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint
1.94Z-score
OE missense 0.82 (0.770.87)
742 obs / 906.7 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.21 (0.150.32)
00.351.4
Missense OE0.82 (0.770.87)
00.61.4
Synonymous OE1.01
01.21.6
LoF obs/exp: 18 / 83.9Missense obs/exp: 742 / 906.7Syn Z: -0.18

ClinVar Variant Classifications

347 submitted variants in ClinVar

Classification Summary

Pathogenic16
Likely Pathogenic2
VUS239
Likely Benign44
Benign14
16
Pathogenic
2
Likely Pathogenic
239
VUS
44
Likely Benign
14
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
16
0
16
Likely Pathogenic
0
1
1
0
2
VUS
2
231
6
0
239
Likely Benign
0
11
1
32
44
Benign
0
4
4
6
14
Total22472838315

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

SLIT3 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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