1-150552294-G-T

Variant names:

• chr1-150552294-G-T
• rs1671492010
• NM_019032.6:c.6G>T

Variant summary

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

The NM_019032.6(ADAMTSL4):​c.6G>T​(p.Glu2Asp) 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ADAMTSL4 NM_019032.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.23

Genes affected

ADAMTSL4 (HGNC:19706): (ADAMTS like 4) This gene is a member of ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs)-like gene family and encodes a protein with seven thrombospondin type 1 repeats. The thrombospondin type 1 repeat domain is found in many proteins with diverse biological functions including cellular adhesion, angiogenesis, and patterning of the developing nervous system. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Sep 2014]

ADAMTSL4-AS2 (HGNC:40895): (ADAMTSL4 antisense RNA 2)

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=0.18363568).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADAMTSL4	NM_019032.6	c.6G>T	p.Glu2Asp	missense_variant	Exon 3 of 19	ENST00000271643.9	NP_061905.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ADAMTSL4	ENST00000271643.9	c.6G>T	p.Glu2Asp	missense_variant	Exon 3 of 19	5	NM_019032.6	ENSP00000271643.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1403598 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 692682

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Jan 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 2 of the ADAMTSL4 protein (p.Glu2Asp). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ADAMTSL4-related conditions. ClinVar contains an entry for this variant (Variation ID: 2014217). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ADAMTSL4 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.0021	T;.;.;T
Eigen	Benign	-0.063
Eigen_PC	Benign	-0.078
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Benign	0.23	.;T;T;T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.18	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.1	M;M;M;M
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-0.37	N;N;N;N
REVEL	Benign	0.14
Sift	Pathogenic	0.0	D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D
Polyphen		0.88	P;.;P;P
Vest4		0.095
MutPred		0.072		Loss of loop (P = 0.1258);Loss of loop (P = 0.1258);Loss of loop (P = 0.1258);Loss of loop (P = 0.1258);
MVP		0.82
MPC		0.11
ClinPred		0.74	D
GERP RS		3.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.15
gMVP		0.14

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: rs1671492010; hg19: chr1-150524770;