LY6G5B

Chr 6

lymphocyte antigen 6 family member G5B

Also known as: C6orf19, G5b

The LY6G5B protein is a cell surface glycoprotein anchored by glycosylphosphatidylinositol (GPI) that participates in signal transduction and belongs to the leukocyte antigen-6 superfamily within the MHC class III region. This gene is extremely intolerant to loss-of-function mutations (pLI near 1.0), but no established human disease associations have been reported for LY6G5B mutations.

OMIMResearchSummary from RefSeq
GOFmechanismLOEUF 1.64
Clinical SummaryLY6G5B
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.64LOEUF
pLI 0.000
Z-score 0.17
OE 0.94 (0.551.64)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-0.10Z-score
OE missense 1.03 (0.881.19)
120 obs / 117.0 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.94 (0.551.64)
00.351.4
Missense OE1.03 (0.881.19)
00.61.4
Synonymous OE0.84
01.21.6
LoF obs/exp: 8 / 8.5Missense obs/exp: 120 / 117.0Syn Z: 0.88
DN
0.6163th %ile
GOF
0.73top 25%
LOF
0.3067th %ile

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

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

LY6G5B · 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 →