6-57188927-A-C
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_016277.5(RAB23):c.*1534T>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000145 in 152,202 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Consequence
RAB23
NM_016277.5 3_prime_UTR
NM_016277.5 3_prime_UTR
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.391
Genes affected
BAG2 (HGNC:938): (BAG cochaperone 2) BAG proteins compete with Hip for binding to the Hsc70/Hsp70 ATPase domain and promote substrate release. All the BAG proteins have an approximately 45-amino acid BAG domain near the C terminus but differ markedly in their N-terminal regions. The predicted BAG2 protein contains 211 amino acids. The BAG domains of BAG1, BAG2, and BAG3 interact specifically with the Hsc70 ATPase domain in vitro and in mammalian cells. All 3 proteins bind with high affinity to the ATPase domain of Hsc70 and inhibit its chaperone activity in a Hip-repressible manner. [provided by RefSeq, Jul 2008]
RAB23 (HGNC:14263): (RAB23, member RAS oncogene family) This gene encodes a small GTPase of the Ras superfamily. Rab proteins are involved in the regulation of diverse cellular functions associated with intracellular membrane trafficking, including autophagy and immune response to bacterial infection. The encoded protein may play a role in central nervous system development by antagonizing sonic hedgehog signaling. Disruption of this gene has been implicated in Carpenter syndrome as well as cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BAG2 | NM_004282.4 | c.*4737A>C | 3_prime_UTR_variant | 3/3 | ENST00000370693.5 | ||
RAB23 | NM_016277.5 | c.*1534T>G | 3_prime_UTR_variant | 7/7 | ENST00000468148.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BAG2 | ENST00000370693.5 | c.*4737A>C | 3_prime_UTR_variant | 3/3 | 1 | NM_004282.4 | P1 | ||
RAB23 | ENST00000468148.6 | c.*1534T>G | 3_prime_UTR_variant | 7/7 | 1 | NM_016277.5 | P1 | ||
RAB23 | ENST00000317483.4 | c.*1534T>G | 3_prime_UTR_variant | 7/7 | 1 | P1 |
Frequencies
GnomAD3 genomes AF: 0.000145 AC: 22AN: 152202Hom.: 0 Cov.: 32
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GnomAD4 genome AF: 0.000145 AC: 22AN: 152202Hom.: 0 Cov.: 32 AF XY: 0.0000807 AC XY: 6AN XY: 74362
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
RAB23-related Carpenter syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Computational 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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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at