1-159857892-C-T

Position:

• chr1-159857892-C-T

Variant summary

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

The NM_001013661.1(VSIG8):​c.505G>A​(p.Ala169Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: VSIG8 NM_001013661.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.853

Genes affected

VSIG8 (HGNC:32063): (V-set and immunoglobulin domain containing 8) Enables RNA binding activity. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

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=0.261216).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VSIG8	NM_001013661.1	c.505G>A	p.Ala169Thr	missense_variant	4/7	ENST00000368100.1
LOC107985216	XR_001738261.2	n.1257+1789C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VSIG8	ENST00000368100.1	c.505G>A	p.Ala169Thr	missense_variant	4/7	1	NM_001013661.1	P1
	ENST00000608430.2	n.328+1768C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461882 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 727240

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

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

Feb 11, 2022

The c.505G>A (p.A169T) alteration is located in exon 4 (coding exon 4) of the VSIG8 gene. This alteration results from a G to A substitution at nucleotide position 505, causing the alanine (A) at amino acid position 169 to be replaced by a threonine (T). 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
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	23
DANN	Pathogenic	1.0
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Benign	0.55	D
LIST_S2	Benign	0.66	T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.26	T
MetaSVM	Benign	-1.2	T
MutationAssessor	Uncertain	2.5	M
MutationTaster	Benign	0.99	D
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-0.80	N
REVEL	Benign	0.17
Sift	Benign	0.032	D
Sift4G	Pathogenic	0.0	D
Vest4		0.34
MutPred		0.61		Gain of sheet (P = 0.0827);
MVP		0.48
MPC		1.1
ClinPred		0.96	D
GERP RS		5.2
Varity_R		0.21
gMVP		0.42

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: chr1-159827682;