NM_014243.3:c.3094G>A

Variant names:

• chr4-72283660-C-T
• rs770743867
• NM_014243.3:c.3094G>A

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_014243.3(ADAMTS3):​c.3094G>A​(p.Val1032Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,458,606 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V1032L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: ADAMTS3 NM_014243.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.91
• Publications: 1 publications found

Genes affected

ADAMTS3 (HGNC:219): (ADAM metallopeptidase with thrombospondin type 1 motif 3) This gene encodes a member of the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) protein family. Members of the family share several distinct protein modules, including a propeptide region, a metalloproteinase domain, a disintegrin-like domain, and a thrombospondin type 1 (TS) motif. Individual members of this family differ in the number of C-terminal TS motifs, and some have unique C-terminal domains. The encoded preproprotein is proteolytically processed to generate the mature protease. This protease, a member of the procollagen aminopropeptidase subfamily of proteins, may play a role in the processing of type II fibrillar collagen in articular cartilage. [provided by RefSeq, Feb 2016]

ADAMTS3 Gene-Disease associations (from GenCC):

• hennekam lymphangiectasia-lymphedema syndrome 3

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• Hennekam syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.803

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014243.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAMTS3	NM_014243.3	MANE Select	c.3094G>A	p.Val1032Met	missense	Exon 22 of 22	NP_055058.2	O15072

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAMTS3	ENST00000286657.10	TSL:1 MANE Select	c.3094G>A	p.Val1032Met	missense	Exon 22 of 22	ENSP00000286657.4	O15072

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000403 AC: 1 AN: 248060 AF XY: 0.00

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000892

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1458606 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 725360

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000299 AC: 1 AN: 33432

American (AMR) AF: 0.00 AC: 0 AN: 44542

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26012

East Asian (EAS) AF: 0.00 AC: 0 AN: 39602

South Asian (SAS) AF: 0.00 AC: 0 AN: 85922

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52878

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1110194

Other (OTH) AF: 0.00 AC: 0 AN: 60270

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0126737), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.79
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.065	T
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.76
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.079	D
MetaRNN	Pathogenic	0.80	D
MetaSVM	Uncertain	-0.18	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		7.9
PrimateAI	Pathogenic	0.88	D
PROVEAN	Benign	-2.2	N
REVEL	Uncertain	0.35
Sift	Uncertain	0.029	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.65
MutPred		0.72		Gain of disorder (P = 0.0222)
MVP		0.82
MPC		0.43
ClinPred		0.88	D
GERP RS		5.3
Varity_R		0.25
gMVP		0.60
Mutation Taster		=60/40	polymorphism

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

Other links and lift over

dbSNP: rs770743867; hg19: chr4-73149377;