X-154478295-C-T

Position:

• chrX-154478295-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_006014.5(LAGE3):​c.305G>A​(p.Arg102Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 23)
• Consequence: LAGE3 NM_006014.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.141

Genes affected

LAGE3 (HGNC:26058): (L antigen family member 3) This gene belongs to the ESO/LAGE gene family, members of which are clustered together on chromosome Xq28, and have similar exon-intron structures. Unlike the other family members which are normally expressed only in testis and activated in a wide range of human tumors, this gene is ubiquitously expressed in somatic tissues. The latter, combined with the finding that it is highly conserved in mouse and rat, suggests that the encoded protein is functionally important. An intronless pseudogene with high sequence similarity to this gene is located on chromosome 9. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09028718).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LAGE3	NM_006014.5	c.305G>A	p.Arg102Lys	missense_variant	2/3	ENST00000357360.5	NP_006005.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LAGE3	ENST00000357360.5	c.305G>A	p.Arg102Lys	missense_variant	2/3	1	NM_006014.5	ENSP00000349923.4

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 23

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Apr 21, 2023

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.49	T
BayesDel_noAF	Benign	-0.95
CADD	Benign	13
DANN	Benign	0.85
DEOGEN2	Benign	0.0093	T
FATHMM_MKL	Benign	0.053	N
LIST_S2	Benign	0.57	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.090	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.7	L
PrimateAI	Benign	0.26	T
PROVEAN	Benign	0.12	N
REVEL	Benign	0.0010
Sift	Benign	0.11	T
Sift4G	Benign	0.38	T
Polyphen		0.33	B
Vest4		0.082
MutPred		0.42		Gain of ubiquitination at R102 (P = 0.0267);
MVP		0.62
MPC		0.35
ClinPred		0.15	T
GERP RS		0.30
Varity_R		0.27
gMVP		0.62

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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-153706634; COSMIC: COSV62074008; COSMIC: COSV62074008;