ATG16L1

Chr 2

autophagy related 16 like 1

Also known as: APG16L, ATG16A, ATG16L, IBD10, WDR30

ATG16L1 encodes a protein that is essential for autophagy, mediating the conjugation of phosphatidylethanolamine to ATG8 family proteins to control autophagosomal membrane elongation and also participating in non-canonical autophagy pathways. Mutations cause susceptibility to inflammatory bowel disease, particularly Crohn disease, with the gene being highly constrained against loss-of-function variants (pLI 0.96, LOEUF 0.32). The protein also regulates innate immune responses and Paneth cell function in the intestinal epithelium.

Summary from RefSeq, OMIM, UniProt
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Primary Disease Associations & Inheritance

{Inflammatory bowel disease (Crohn disease) 10}MIM #611081
1
Active trials
99
Pubs (1 yr)
34
P/LP submissions
0%
P/LP missense
0.32
LOEUF· LoF intol.
LOF
Mechanism· predicted
Clinical SummaryATG16L1
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 0.96). One damaged copy is likely sufficient to cause disease.
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ClinVar Variants
34 unique Pathogenic / Likely Pathogenic· 61 VUS of 133 total submissions
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Clinical Trials
1 active or recruiting trial — potential therapeutic options may be available

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint
0.32LOEUF
pLI 0.965
Z-score 4.94
OE 0.17 (0.100.32)
Highly constrained

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

Missense Constraint
2.63Z-score
OE missense 0.60 (0.540.67)
207 obs / 344.6 exp
Mild constraint

Moderately missense-constrained (top ~2.5%)

Observed / Expected Ratios
LoF OE0.17 (0.100.32)
00.351.4
Missense OE0.60 (0.540.67)
00.61.4
Synonymous OE0.96
01.21.6
LoF obs/exp: 7 / 41.2Missense obs/exp: 207 / 344.6Syn Z: 0.32
DN
0.4784th %ile
GOF
0.4382th %ile
LOF
0.68top 10%

The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).

LOFprediction above median · LOEUF 0.32

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.

ClinVar Variant Classifications

133 submitted variants in ClinVar

Classification Summary

Pathogenic33
Likely Pathogenic1
VUS61
Likely Benign10
Benign2
33
Pathogenic
1
Likely Pathogenic
61
VUS
10
Likely Benign
2
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
33
0
33
Likely Pathogenic
0
0
1
0
1
VUS
1
51
9
0
61
Likely Benign
0
4
0
6
10
Benign
0
1
0
1
2
Total156437107

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

View in ClinVar →

Protein Context — Lollipop Plot

ATG16L1 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold
Clinical Literature
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