LHX8

Chr 1

LIM homeobox 8

Also known as: LHX7

LHX8 encodes a LIM homeobox transcription factor that regulates neuronal differentiation and tooth morphogenesis. Mutations cause autosomal recessive hypogonadotropic hypogonadism with absent or delayed puberty, and may be associated with dental abnormalities including cleft palate and odontoma formation. The gene shows moderate constraint against loss-of-function variants (LOEUF 0.47), suggesting intolerance to complete protein loss.

Summary from RefSeq, UniProt
Research Assistant →
0
Active trials
16
Pubs (1 yr)
20
P/LP submissions
0%
P/LP missense
0.47
LOEUF
LOF
Mechanism· predicted
Clinical SummaryLHX8
Population Constraint (gnomAD)
Moderately constrained gene (pLI 0.52) — some intolerance to loss-of-function variants.
📋
ClinVar Variants
20 unique Pathogenic / Likely Pathogenic· 48 VUS of 78 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint
0.47LOEUF
pLI 0.516
Z-score 3.23
OE 0.21 (0.100.47)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint
1.61Z-score
OE missense 0.68 (0.590.79)
137 obs / 201.1 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.21 (0.100.47)
00.351.4
Missense OE0.68 (0.590.79)
00.61.4
Synonymous OE1.06
01.21.6
LoF obs/exp: 4 / 19.4Missense obs/exp: 137 / 201.1Syn Z: -0.40
DN
0.5771th %ile
GOF
0.5170th %ile
LOF
0.66top 25%

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

LOFprediction above median · LOEUF 0.47

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

78 submitted variants in ClinVar

Classification Summary

Pathogenic18
Likely Pathogenic2
VUS48
Likely Benign6
Benign3
18
Pathogenic
2
Likely Pathogenic
48
VUS
6
Likely Benign
3
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
18
0
18
Likely Pathogenic
0
0
2
0
2
VUS
0
44
4
0
48
Likely Benign
0
1
2
3
6
Benign
0
1
0
2
3
Total04626577

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

View in ClinVar →

Protein Context — Lollipop Plot

LHX8 · 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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