rs386833766

Variant summary

Our verdict is Pathogenic. Variant got 15 ACMG points: 15P and 0B. PVS1PM2PP3_StrongPP5

The NM_001081.4(CUBN):​c.1230+1G>A variant causes a splice donor change. The variant allele was found at a frequency of 0.0000051 in 1,371,574 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000051 ( 0 hom. )

Consequence

CUBN
NM_001081.4 splice_donor

Scores

5
1
1
Splicing: ADA: 1.000
2

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 6.50
Variant links:
Genes affected
CUBN (HGNC:2548): (cubilin) Cubilin (CUBN) acts as a receptor for intrinsic factor-vitamin B12 complexes. The role of receptor is supported by the presence of 27 CUB domains. Cubulin is located within the epithelium of intestine and kidney. Mutations in CUBN may play a role in autosomal recessive megaloblastic anemia. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 15 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
Variant 10-17105456-C-T is Pathogenic according to our data. Variant chr10-17105456-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 56318.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr10-17105456-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CUBNNM_001081.4 linkuse as main transcriptc.1230+1G>A splice_donor_variant ENST00000377833.10
CUBNXM_011519708.3 linkuse as main transcriptc.1230+1G>A splice_donor_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CUBNENST00000377833.10 linkuse as main transcriptc.1230+1G>A splice_donor_variant 1 NM_001081.4 P1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251436
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000510
AC:
7
AN:
1371574
Hom.:
0
Cov.:
22
AF XY:
0.00000436
AC XY:
3
AN XY:
687340
show subpopulations
Gnomad4 AFR exome
AF:
0.0000311
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00000486
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Imerslund-Grasbeck syndrome Pathogenic:1
Likely pathogenic, no assertion criteria providedliterature onlyJuha Muilu Group; Institute for Molecular Medicine Finland (FIMM)-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.22
CADD
Pathogenic
27
DANN
Uncertain
0.99
Eigen
Pathogenic
0.98
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.99
D
MutationTaster
Benign
1.0
D
GERP RS
5.5

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.94
SpliceAI score (max)
0.83
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.83
Position offset: 1

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: rs386833766; hg19: chr10-17147455; COSMIC: COSV64716345; API