rs373943338
Positions:
Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_002180.3(IGHMBP2):c.2836C>T(p.Arg946Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000401 in 1,613,162 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.00026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00042 ( 2 hom. )
Consequence
IGHMBP2
NM_002180.3 missense
NM_002180.3 missense
Scores
1
12
5
Clinical Significance
Conservation
PhyloP100: 1.07
Genes affected
IGHMBP2 (HGNC:5542): (immunoglobulin mu DNA binding protein 2) This gene encodes a helicase superfamily member that binds a specific DNA sequence from the immunoglobulin mu chain switch region. Mutations in this gene lead to spinal muscle atrophy with respiratory distress type 1. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -20 ACMG points.
BP4
Computational evidence support a benign effect (MetaRNN=0.009153038).
BP6
Variant 11-68939585-C-T is Benign according to our data. Variant chr11-68939585-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 245633.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000263 (40/152338) while in subpopulation SAS AF= 0.00766 (37/4828). AF 95% confidence interval is 0.00572. There are 0 homozygotes in gnomad4. There are 29 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
IGHMBP2 | NM_002180.3 | c.2836C>T | p.Arg946Trp | missense_variant | 15/15 | ENST00000255078.8 | NP_002171.2 | |
IGHMBP2 | XM_017017670.3 | c.1825C>T | p.Arg609Trp | missense_variant | 11/11 | XP_016873159.1 | ||
IGHMBP2 | XM_005273975.4 | c.1708C>T | p.Arg570Trp | missense_variant | 8/8 | XP_005274032.1 | ||
IGHMBP2 | XM_011544994.2 | c.1603C>T | p.Arg535Trp | missense_variant | 8/8 | XP_011543296.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
IGHMBP2 | ENST00000255078.8 | c.2836C>T | p.Arg946Trp | missense_variant | 15/15 | 1 | NM_002180.3 | ENSP00000255078.4 |
Frequencies
GnomAD3 genomes AF: 0.000269 AC: 41AN: 152220Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.000926 AC: 232AN: 250482Hom.: 0 AF XY: 0.00118 AC XY: 160AN XY: 135710
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GnomAD4 exome AF: 0.000416 AC: 607AN: 1460824Hom.: 2 Cov.: 31 AF XY: 0.000561 AC XY: 408AN XY: 726716
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GnomAD4 genome AF: 0.000263 AC: 40AN: 152338Hom.: 0 Cov.: 33 AF XY: 0.000389 AC XY: 29AN XY: 74500
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ClinVar
Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Charcot-Marie-Tooth disease Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Molecular Genetics Laboratory, London Health Sciences Centre | - | - - |
not specified Benign:1
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Sep 29, 2017 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Feb 24, 2020 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Autosomal recessive distal spinal muscular atrophy 1;C4015349:Charcot-Marie-Tooth disease axonal type 2S Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 26, 2024 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Pathogenic
DEOGEN2
Uncertain
T
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D
MetaRNN
Benign
T
MetaSVM
Benign
T
MutationAssessor
Uncertain
M
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D
REVEL
Uncertain
Sift
Uncertain
D
Sift4G
Uncertain
D
Polyphen
D
Vest4
MutPred
Loss of disorder (P = 4e-04);
MVP
MPC
ClinPred
T
GERP RS
Varity_R
gMVP
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