rs373943338

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

Scores

1
12
5

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.07
Variant links:
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]

Genome browser will be placed here

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
IGHMBP2NM_002180.3 linkuse as main transcriptc.2836C>T p.Arg946Trp missense_variant 15/15 ENST00000255078.8 NP_002171.2 P38935
IGHMBP2XM_017017670.3 linkuse as main transcriptc.1825C>T p.Arg609Trp missense_variant 11/11 XP_016873159.1
IGHMBP2XM_005273975.4 linkuse as main transcriptc.1708C>T p.Arg570Trp missense_variant 8/8 XP_005274032.1
IGHMBP2XM_011544994.2 linkuse as main transcriptc.1603C>T p.Arg535Trp missense_variant 8/8 XP_011543296.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IGHMBP2ENST00000255078.8 linkuse as main transcriptc.2836C>T p.Arg946Trp missense_variant 15/151 NM_002180.3 ENSP00000255078.4 P38935

Frequencies

GnomAD3 genomes
AF:
0.000269
AC:
41
AN:
152220
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00786
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000926
AC:
232
AN:
250482
Hom.:
0
AF XY:
0.00118
AC XY:
160
AN XY:
135710
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00728
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.000818
GnomAD4 exome
AF:
0.000416
AC:
607
AN:
1460824
Hom.:
2
Cov.:
31
AF XY:
0.000561
AC XY:
408
AN XY:
726716
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000277
Gnomad4 SAS exome
AF:
0.00646
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.000481
GnomAD4 genome
AF:
0.000263
AC:
40
AN:
152338
Hom.:
0
Cov.:
33
AF XY:
0.000389
AC XY:
29
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00766
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000854
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.00104
AC:
126
Asia WGS
AF:
0.00462
AC:
16
AN:
3478

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 submitterclinical testingMolecular Genetics Laboratory, London Health Sciences Centre-- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 29, 2017This 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 submitterclinical testingAmbry GeneticsFeb 24, 2020This 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 submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Uncertain
-0.080
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.42
T
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.96
D
MetaRNN
Benign
0.0092
T
MetaSVM
Benign
-0.65
T
MutationAssessor
Uncertain
2.3
M
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-3.6
D
REVEL
Uncertain
0.34
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.40
MutPred
0.47
Loss of disorder (P = 4e-04);
MVP
0.65
MPC
0.77
ClinPred
0.090
T
GERP RS
2.4
Varity_R
0.29
gMVP
0.45

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs373943338; hg19: chr11-68707053; API