FAM110D

Chr 1

family with sequence similarity 110 member D

Also known as: GRRP1

This gene encodes a protein of unknown function that is expressed in various tissues including the brain. Mutations cause autosomal recessive intellectual disability with microcephaly, seizures, and developmental delay. The gene shows moderate tolerance to loss-of-function variants, consistent with its recessive inheritance pattern.

GOFmechanismLOEUF 0.95
Clinical SummaryFAM110D
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.20) despite low pLI — interpret in context.
📋
ClinVar Variants
5 unique Pathogenic / Likely Pathogenic· 43 VUS of 49 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.95LOEUF
pLI 0.394
Z-score 1.65
OE 0.20 (0.070.95)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
1.14Z-score
OE missense 0.70 (0.590.85)
83 obs / 117.8 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.20 (0.070.95)
00.351.4
Missense OE0.70 (0.590.85)
00.61.4
Synonymous OE0.76
01.21.6
LoF obs/exp: 1 / 5.0Missense obs/exp: 83 / 117.8Syn Z: 1.40
DN
0.5772th %ile
GOF
0.6834th %ile
LOF
0.53top 25%

The highest-scoring mechanism for this gene is gain-of-function.

GOFprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

49 submitted variants in ClinVar

Classification Summary

Pathogenic5
VUS43
Likely Benign1
5
Pathogenic
43
VUS
1
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
5
0
5
Likely Pathogenic
0
0
0
0
0
VUS
0
39
4
0
43
Likely Benign
0
1
0
0
1
Benign
0
0
0
0
0
Total0409049

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

View in ClinVar →

Protein Context — Lollipop Plot

FAM110D · 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.

Search ClinicalTrials.gov →
Clinical Literature
Open Research Assistant →
Key Publications
Landmark & review papers · by relevance
PubMed
Top 1 results · since 2015Search PubMed ↗
Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
Europe PMC