2-206481273-C-T

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_Strong BP6_Moderate BP7 BS2

The NM_003812.4(ADAM23):c.474C>T(p.Phe158=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000839 in 1,609,286 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000089 (0 hom.)
• Consequence: ADAM23 NM_003812.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.52

Genes affected

ADAM23 (HGNC:202): (ADAM metallopeptidase domain 23) This gene encodes a member of the ADAM (a disintegrin and metalloprotease domain) family. Members of this family are membrane-anchored proteins structurally related to snake venom disintegrins and have been implicated in a variety of biological processes involving cell-cell and cell-matrix interactions, including fertilization, muscle development, and neurogenesis. It is reported that inactivation of this gene is associated with tumorigenesis in human cancers. [provided by RefSeq, May 2013]

ACMG classification

Verdict is Benign. Variant got -11 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.61).
• BP6: Variant 2-206481273-C-T is Benign according to our data. Variant chr2-206481273-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 723172.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-1.52 with no splicing effect.
• BS2: High AC in GnomAd at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADAM23	NM_003812.4	c.474C>T	p.Phe158=	synonymous_variant	3/26	ENST00000264377.8
ADAM23	NM_001410985.1	c.474C>T	p.Phe158=	synonymous_variant	3/26
ADAM23	XM_005246932.4	c.474C>T	p.Phe158=	synonymous_variant	3/25

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADAM23	ENST00000264377.8	c.474C>T	p.Phe158=	synonymous_variant	3/26	1	NM_003812.4	P4
ADAM23	ENST00000374415.7	c.474C>T	p.Phe158=	synonymous_variant	3/26	5		A1

Frequencies

GnomAD3 genomes AF: 0.0000394 AC: 6 AN: 152190 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000830

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000207 AC: 51 AN: 246084 Hom.: 0 AF XY: 0.000173 AC XY: 23 AN XY: 133256

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000993

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000368

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000447

Gnomad OTH exome AF: 0.000338

GnomAD4 exome AF: 0.0000885 AC: 129 AN: 1457096 Hom.: 0 Cov.: 30 AF XY: 0.0000979 AC XY: 71 AN XY: 724890

Gnomad4 AFR exome AF: 0.0000302

Gnomad4 AMR exome AF: 0.000960

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000362

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000432

Gnomad4 OTH exome AF: 0.0000998

GnomAD4 genome AF: 0.0000394 AC: 6 AN: 152190 Hom.: 0 Cov.: 33 AF XY: 0.0000538 AC XY: 4 AN XY: 74352

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000655

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000830

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000793

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Apr 17, 2018

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.61
Cadd	Benign	4.4
Dann	Benign	0.63

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: rs141683172; hg19: chr2-207345997; COSMIC: COSV52212818;