FAM89A

Chr 1

family with sequence similarity 89 member A

Also known as: C1orf153

84
ClinVar variants
38
Pathogenic / LP
0.26
pLI score
0
Active trials
Clinical SummaryFAM89A
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.29) despite low pLI — interpret in context.
📋
ClinVar Variants
38 Pathogenic / Likely Pathogenic· 44 VUS of 84 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
1.32LOEUF
pLI 0.257
Z-score 1.23
OE 0.29 (0.101.32)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
0.24Z-score
OE missense 0.92 (0.751.13)
66 obs / 71.7 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.29 (0.101.32)
00.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.92 (0.751.13)
00.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.0.92
01.21.6
LoF obs/exp: 1 / 3.5Missense obs/exp: 66 / 71.7Syn Z: 0.35

ClinVar Variant Classifications

84 submitted variants in ClinVar

Classification Summary

Pathogenic36
Likely Pathogenic2
VUS44
Likely Benign2
36
Pathogenic
2
Likely Pathogenic
44
VUS
2
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
36
0
36
Likely Pathogenic
0
0
2
0
2
VUS
0
33
11
0
44
Likely Benign
0
2
0
0
2
Benign
0
0
0
0
0
Total03549084

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

View in ClinVar →

Protein Context — Lollipop Plot

FAM89A · protein map & ClinVar variants

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

OMIM — Genotype-Phenotype

No OMIM entries found.

Clinical Literature
Landmark / reviewRecent case evidence

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →