7-157006478-C-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_005515.4(MNX1):​c.852+1G>A variant causes a splice donor change. The variant was absent in control chromosomes in GnomAD project. 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 (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MNX1
NM_005515.4 splice_donor

Scores

3
3
1
Splicing: ADA: 1.000
2

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 5.67
Variant links:
Genes affected
MNX1 (HGNC:4979): (motor neuron and pancreas homeobox 1) This gene encodes a nuclear protein, which contains a homeobox domain and is a transcription factor. Mutations in this gene result in Currarino syndrome, an autosomic dominant congenital malformation. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]
MNX1-AS2 (HGNC:40278): (MNX1 antisense RNA 2)

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 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;
PP5
Variant 7-157006478-C-T is Pathogenic according to our data. Variant chr7-157006478-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 14856.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr7-157006478-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MNX1NM_005515.4 linkuse as main transcriptc.852+1G>A splice_donor_variant ENST00000252971.11 NP_005506.3
MNX1-AS2NR_147077.1 linkuse as main transcriptn.118+54C>T intron_variant, non_coding_transcript_variant
MNX1NM_001165255.2 linkuse as main transcriptc.216+1G>A splice_donor_variant NP_001158727.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MNX1ENST00000252971.11 linkuse as main transcriptc.852+1G>A splice_donor_variant 1 NM_005515.4 ENSP00000252971 P2P50219-1
MNX1-AS2ENST00000429228.1 linkuse as main transcriptn.118+54C>T intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1457692
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
724824
Gnomad4 AFR exome
AF:
0.00
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:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Currarino triad Pathogenic:2
Likely pathogenic, criteria provided, single submitterclinical testingLaboratorio de Genetica e Diagnostico Molecular, Hospital Israelita Albert EinsteinFeb 11, 2022ACMG classification criteria: PVS1 strong, PS4 supporting, PM2 moderate -
Pathogenic, no assertion criteria providedliterature onlyOMIMJan 01, 2000- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.59
D
BayesDel_noAF
Uncertain
-0.010
CADD
Pathogenic
35
DANN
Uncertain
0.98
Eigen
Pathogenic
0.82
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Pathogenic
0.98
D
MutationTaster
Benign
1.0
D;D
GERP RS
2.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.89
SpliceAI score (max)
0.98
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.41
Position offset: 34
DS_DL_spliceai
0.98
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: rs1563700419; hg19: chr7-156799172; API