7-157006556-G-A

Variant names:

• chr7-157006556-G-A
• rs121912546
• NM_005515.4:c.775C>T

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_005515.4(MNX1):​c.775C>T​(p.Gln259*) variant causes a stop gained 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). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MNX1 NM_005515.4 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 4.60
• Publications: 1 publications found

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)

ACMG classification

Our verdict: Pathogenic. The variant received 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 7-157006556-G-A is Pathogenic according to our data. Variant chr7-157006556-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 14851.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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MNX1	NM_005515.4	MANE Select	c.775C>T	p.Gln259*	stop_gained	Exon 2 of 3	NP_005506.3
	MNX1	NM_001165255.2		c.139C>T	p.Gln47*	stop_gained	Exon 2 of 3	NP_001158727.1
	MNX1-AS2	NR_147077.1		n.118+132G>A		intron	N/A

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MNX1	ENST00000252971.11	TSL:1 MANE Select	c.775C>T	p.Gln259*	stop_gained	Exon 2 of 3	ENSP00000252971.5
	MNX1	ENST00000543409.5	TSL:1	c.139C>T	p.Gln47*	stop_gained	Exon 2 of 3	ENSP00000438552.1
	MNX1	ENST00000428439.1	TSL:1	c.139C>T	p.Gln47*	stop_gained	Exon 2 of 3	ENSP00000401158.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Currarino triad Pathogenic:1

Dec 01, 1998

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.59	D
BayesDel_noAF	Pathogenic	0.57
CADD	Pathogenic	44
DANN	Uncertain	1.0
Eigen	Pathogenic	1.0
Eigen_PC	Pathogenic	0.83
FATHMM_MKL	Pathogenic	0.97	D
PhyloP100		4.6
Vest4		0.74
GERP RS		3.9
Mutation Taster		=2/198	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs121912546; hg19: chr7-156799250;