X-102937320-T-G

Variant names:

• chrX-102937320-T-G
• rs767350323
• NM_001031834.1:c.2T>G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PVS1_Supporting PM2

The NM_001031834.1(RAB40AL):​c.2T>G​(p.Met1?) variant causes a start lost change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0000055 (0 hom. 1 hem.)
  • Failed GnomAD Quality Control
• Consequence: RAB40AL NM_001031834.1 start_lost
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.09

Genes affected

RAB40AL (HGNC:25410): (RAB40A like) This gene encodes a member of the Rab40 subfamily of Rab small GTP-binding proteins that contains a C-terminal suppressors of cytokine signaling box. Disruptions in this gene are associated with Duchenne muscular dystrophy. [provided by RefSeq, Apr 2010]

LINC00630 (HGNC:44263): (long intergenic non-protein coding RNA 630)

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PVS1: Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 105 codons. Genomic position: 102937631. Lost 0.374 part of the original CDS.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAB40AL	NM_001031834.1	c.2T>G	p.Met1?	start_lost	Exon 1 of 1	ENST00000218249.7	NP_001027004.1
LINC00630	NR_146589.1	n.1910-21328T>G		intron_variant	Intron 10 of 11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAB40AL	ENST00000218249.7	c.2T>G	p.Met1?	start_lost	Exon 1 of 1	6	NM_001031834.1	ENSP00000218249.5

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD3 exomes AF: 0.00000559 AC: 1 AN: 178943 Hom.: 0 AF XY: 0.0000156 AC XY: 1 AN XY: 64233

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000125

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000547 AC: 6 AN: 1096368 Hom.: 0 Cov.: 31 AF XY: 0.00000276 AC XY: 1 AN XY: 362056

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000713

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 23

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.010
CADD	Benign	17
DANN	Benign	0.95
DEOGEN2	Benign	0.0046	T
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.066	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Uncertain	-0.26	T
PROVEAN	Benign	-1.5	N
REVEL	Uncertain	0.46
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.71
MutPred		0.98		Gain of methylation at M1 (P = 0.0336);
MVP		0.97
ClinPred		0.99	D
GERP RS		0.99
Varity_R		0.94
gMVP		0.73

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: rs767350323; hg19: chrX-102192248;