FAM83A

Chr 8

scaffolding CK1 anchoring protein A

Also known as: BJ-TSA-9, FAM83A

Enables identical protein binding activity; phosphatidylinositol 3-kinase regulatory subunit binding activity; and protein kinase binding activity. Involved in cell population proliferation and epidermal growth factor receptor signaling pathway. Predicted to be located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2025]

0
Active trials
26
Pubs (1 yr)
28
P/LP submissions
0%
P/LP missense
1.41
LOEUF
Multiple*
Mechanism· predicted
Clinical SummaryFAM83A
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
28 unique Pathogenic / Likely Pathogenic· 67 VUS of 109 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.41LOEUF
pLI 0.000
Z-score 0.49
OE 0.85 (0.541.41)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.48Z-score
OE missense 0.92 (0.831.02)
251 obs / 273.5 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.85 (0.541.41)
00.351.4
Missense OE0.92 (0.831.02)
00.61.4
Synonymous OE0.90
01.21.6
LoF obs/exp: 11 / 12.9Missense obs/exp: 251 / 273.5Syn Z: 0.87
DN
0.6743th %ile
GOF
0.6442th %ile
LOF
0.4037th %ile

This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

DNprediction above median
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

109 submitted variants in ClinVar

Classification Summary

Pathogenic28
VUS67
Likely Benign4
28
Pathogenic
67
VUS
4
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
28
0
28
Likely Pathogenic
0
0
0
0
0
VUS
0
66
1
0
67
Likely Benign
0
4
0
0
4
Benign
0
0
0
0
0
Total07029099

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

View in ClinVar →

Protein Context — Lollipop Plot

FAM83A · protein map & ClinVar variants

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

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
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