TAB2

Chr 6AD

TGF-beta activated kinase 1 (MAP3K7) binding protein 2

Also known as: CHTD2, MAP3K7IP2, TAB-2

NCBI Gene: 23118 ENSG00000055208 UniProt: Q9NYJ8

The protein encoded by this gene is an activator of MAP3K7/TAK1, which is required for for the IL-1 induced activation of nuclear factor kappaB and MAPK8/JNK. This protein forms a kinase complex with TRAF6, MAP3K7 and TAB1, and it thus serves as an adaptor that links MAP3K7 and TRAF6. This protein, along with TAB1 and MAP3K7, also participates in the signal transduction induced by TNFSF11/RANKl through the activation of the receptor activator of NF-kappaB (TNFRSF11A/RANK), which may regulate the development and function of osteoclasts. Studies of the related mouse protein indicate that it functions to protect against liver damage caused by chemical stressors. Mutations in this gene cause congenital heart defects, multiple types, 2 (CHTD2). Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

Primary Disease Associations & Inheritance

Congenital heart defects, nonsyndromic, 2MIM #614980

ClinVar variants

Pathogenic / LP

1.00

pLI score· haploinsufficient

Active trials

Clinical Summary— TAB2

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Population Constraint (gnomAD)

Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 1.00). One damaged copy is likely sufficient to cause disease.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD

LoF intolerant — likely haploinsufficient

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.

0.10LOEUF

pLI 1.000

Z-score 5.11

OE 0.00 (0.00–0.10)

Highly constrained

Among the most LoF-intolerant genes (~top 3%)

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.

1.61Z-score

OE missense 0.76 (0.69–0.84)

272 obs / 357.9 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.0.00 (0.00–0.10)

0≤0.351.4

Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.76 (0.69–0.84)

0≤0.61.4

Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.1.11

TAB2

Primary Disease Associations & Inheritance

Population Genetics & Constraint

ClinVar Variant Classifications

Protein Context — Lollipop Plot

DECIPHER · Gene2Phenotype

Gene2Phenotype Curations

OMIM — Genotype-Phenotype Relationships

Gene Overview

ClinGen Curation

Disease Associations

External Resources

Variant Interpretation

Population Databases

Gene Resources

Expert Curation

Clinical Trials

External Resources

Variant Interpretation

Population Databases

Gene Resources

Expert Curation