20-33848659-G-T
Variant names:
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2
The NM_176812.5(CHMP4B):c.368+15G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,613,754 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )
Consequence
CHMP4B
NM_176812.5 intron
NM_176812.5 intron
Scores
2
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: 1.27
Genes affected
CHMP4B (HGNC:16171): (charged multivesicular body protein 4B) This gene encodes a member of the chromatin-modifying protein/charged multivesicular body protein (CHMP) protein family. The protein is part of the endosomal sorting complex required for transport (ESCRT) complex III (ESCRT-III), which functions in the sorting of endocytosed cell-surface receptors into multivesicular endosomes. The ESCRT machinery also functions in the final abscisson stage of cytokinesis and in the budding of enveloped viruses such as HIV-1. The three proteins of the CHMP4 subfamily interact with programmed cell death 6 interacting protein (PDCD6IP, also known as ALIX), which also functions in the ESCRT pathway. The CHMP4 proteins assemble into membrane-attached 5-nm filaments that form circular scaffolds and promote or stabilize outward budding. These polymers are proposed to help generate the luminal vesicles of multivesicular bodies. Mutations in this gene result in autosomal dominant posterior polar cataracts.[provided by RefSeq, Oct 2009]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -8 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BS2
High AC in GnomAdExome4 at 26 AD gene.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152178Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000201 AC: 5AN: 248750Hom.: 0 AF XY: 0.0000297 AC XY: 4AN XY: 134748
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GnomAD4 exome AF: 0.0000178 AC: 26AN: 1461576Hom.: 0 Cov.: 31 AF XY: 0.0000248 AC XY: 18AN XY: 727070
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152178Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74340
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Not reported inComputational scores
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Name
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at