rs1554942980

Variant names:

• chr10-117136588-T-TG
• rs1554942980
• NM_001112704.2:c.312dupC

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001112704.2(VAX1):​c.312dupC​(p.Thr105HisfsTer34) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: VAX1 NM_001112704.2 frameshift
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0930
• Publications: 0 publications found

Genes affected

VAX1 (HGNC:12660): (ventral anterior homeobox 1) This gene encodes a homeo-domain containing protein from a class of homeobox transcription factors which are conserved in vertebrates. Genes of this family are involved in the regulation of body development and morphogenesis. The most conserved genes, called HOX genes are found in special gene clusters. This gene belongs to the VAX subfamily and lies in the vicinity of the EMX homeobox gene family. Another member of VAX family is located on chromosome 2. The encoded protein may play an important role in the development of anterior ventral forebrain and visual system. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

VAX1 Gene-Disease associations (from GenCC):

• microphthalmia, syndromic 11

  Inheritance: AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001112704.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VAX1	NM_001112704.2	MANE Select	c.312dupC	p.Thr105HisfsTer34	frameshift	Exon 2 of 3	NP_001106175.1	Q5SQQ9-1
	VAX1	NM_199131.3		c.312dupC	p.Thr105HisfsTer34	frameshift	Exon 2 of 4	NP_954582.1	Q5SQQ9-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VAX1	ENST00000369206.6	TSL:5 MANE Select	c.312dupC	p.Thr105HisfsTer34	frameshift	Exon 2 of 3	ENSP00000358207.4	Q5SQQ9-1
	VAX1	ENST00000277905.6	TSL:1	c.312dupC	p.Thr105HisfsTer34	frameshift	Exon 2 of 4	ENSP00000277905.2	Q5SQQ9-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Microphthalmia, syndromic 11 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-0.093

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs1554942980;

hg19: chr10-118896099;