10-110207821-G-A

Position:

• chr10-110207821-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_130439.3(MXI1):​c.13G>A​(p.Gly5Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000826 in 968,338 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000083 (0 hom.)
• Consequence: MXI1 NM_130439.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.13

Genes affected

MXI1 (HGNC:7534): (MAX interactor 1, dimerization protein) Expression of the c-myc gene, which produces an oncogenic transcription factor, is tightly regulated in normal cells but is frequently deregulated in human cancers. The protein encoded by this gene is a transcriptional repressor thought to negatively regulate MYC function, and is therefore a potential tumor suppressor. This protein inhibits the transcriptional activity of MYC by competing for MAX, another basic helix-loop-helix protein that binds to MYC and is required for its function. Defects in this gene are frequently found in patients with prostate tumors. Three alternatively spliced transcripts encoding different isoforms have been described. Additional alternatively spliced transcripts may exist but the products of these transcripts have not been verified experimentally. [provided by RefSeq, Jul 2008]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.33064377).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MXI1	NM_130439.3	c.13G>A	p.Gly5Arg	missense_variant	1/6	ENST00000332674.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MXI1	ENST00000332674.9	c.13G>A	p.Gly5Arg	missense_variant	1/6	1	NM_130439.3
MXI1	ENST00000453116.5	c.13G>A	p.Gly5Arg	missense_variant	1/4	5
	ENST00000451656.1			downstream_gene_variant		3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000826 AC: 8 AN: 968338 Hom.: 0 Cov.: 31 AF XY: 0.00000217 AC XY: 1 AN XY: 459898

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000508

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000118

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 16, 2021

The c.13G>A (p.G5R) alteration is located in exon 1 (coding exon 1) of the MXI1 gene. This alteration results from a G to A substitution at nucleotide position 13, causing the glycine (G) at amino acid position 5 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.034	T
BayesDel_noAF	Benign	-0.29
CADD	Pathogenic	29
DANN	Uncertain	1.0
Eigen	Uncertain	0.50
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Benign	0.75	D
LIST_S2	Benign	0.83	T;T
M_CAP	Pathogenic	0.66	D
MetaRNN	Benign	0.33	T;T
MetaSVM	Benign	-0.56	T
MutationTaster	Benign	0.89	D
PrimateAI	Pathogenic	0.95	D
PROVEAN	Benign	-0.40	N;N
REVEL	Benign	0.21
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	D;.
Vest4		0.41
MutPred		0.31		Gain of methylation at K3 (P = 0.0308);Gain of methylation at K3 (P = 0.0308);
MVP		0.13
MPC		1.7
ClinPred		1.0	D
GERP RS		4.8
gMVP		0.29

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

Publications

LitVar

Other links and lift over

dbSNP: rs1854400070; hg19: chr10-111967579;