TNFRSF17

Chr 16

TNF receptor superfamily member 17

Also known as: BCM, BCMA, CD269, TNFRSF13A

TNFRSF17 encodes a TNF receptor superfamily member that binds BAFF and APRIL ligands to promote B-cell survival and regulate humoral immunity through NF-kappaB and JNK activation. Mutations cause immunodeficiency with defective B-cell function, resulting in recurrent infections and impaired antibody responses. This gene shows very low constraint against loss-of-function variants (pLI near 0, LOEUF 1.88), suggesting tolerance to complete loss of function.

OMIMResearchSummary from RefSeq, UniProt
MultiplemechanismLOEUF 1.88
Clinical SummaryTNFRSF17
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
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Clinical Trials
2 active or recruiting trials — potential therapeutic options may be available

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.88LOEUF
pLI 0.000
Z-score -0.63
OE 1.27 (0.721.88)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-1.24Z-score
OE missense 1.34 (1.171.54)
143 obs / 106.8 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE1.27 (0.721.88)
00.351.4
Missense OE1.34 (1.171.54)
00.61.4
Synonymous OE1.22
01.21.6
LoF obs/exp: 8 / 6.3Missense obs/exp: 143 / 106.8Syn Z: -1.12
DN
0.7036th %ile
GOF
0.76top 25%
LOF
0.3164th %ile

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

GOFprediction above median
DNprediction 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

TNFRSF17 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold
Clinical Literature
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