Genetic Variant MNX1:p.Thr246Ser (chr7-157006595-T-A) – ACMG Classification: Likely_pathogenic (9 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1PM2PP3_StrongPP5

The NM_005515.4(MNX1):c.736A>T(p.Thr246Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. T246T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MNX1
NM_005515.4 missense

Scores

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.95

Publications

2 publications found

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 links:

MNX1-AS2 (HGNC:40278): (MNX1 antisense RNA 2)

MNX1-AS2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_005515.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.976

PP5

Variant 7-157006595-T-A is Pathogenic according to our data. Variant chr7-157006595-T-A is described in ClinVar as Pathogenic. ClinVar VariationId is 14857.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005515.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MNX1	NM_005515.4	MANE Select	c.736A>T	p.Thr246Ser	missense	Exon 2 of 3	NP_005506.3
MNX1	NM_001165255.2		c.100A>T	p.Thr34Ser	missense	Exon 2 of 3	NP_001158727.1
MNX1-AS2	NR_147077.1		n.118+171T>A		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MNX1	ENST00000252971.11	TSL:1 MANE Select	c.736A>T	p.Thr246Ser	missense	Exon 2 of 3	ENSP00000252971.5
MNX1	ENST00000543409.5	TSL:1	c.100A>T	p.Thr34Ser	missense	Exon 2 of 3	ENSP00000438552.1
MNX1	ENST00000428439.1	TSL:1	c.100A>T	p.Thr34Ser	missense	Exon 2 of 3	ENSP00000401158.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1452036

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

721400

African (AFR)

AF:

0.00

AC:

AN:

33426

American (AMR)

AF:

0.00

AC:

AN:

43452

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25798

East Asian (EAS)

AF:

0.00

AC:

AN:

39352

South Asian (SAS)

AF:

0.00

AC:

AN:

84110

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51554

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5664

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1108718

Other (OTH)

AF:

0.00

AC:

AN:

59962

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Currarino triad

Pathogenic:1

Jan 01, 2000

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.49

BayesDel_noAF

Pathogenic

0.47

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.90

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

M_CAP

Pathogenic

0.68

MetaRNN

Pathogenic

0.98

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.1

PhyloP100

5.9

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-4.0

REVEL

Pathogenic

0.91

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.85

MutPred

0.88

Gain of disorder (P = 0.0604)

MVP

0.97

ClinPred

1.0

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.89

gMVP

0.75

Mutation Taster

=11/89

disease causing (ClinVar)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over