2-206481233-C-G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The ENST00000264377.8(ADAM23):ā€‹c.434C>Gā€‹(p.Ala145Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000566 in 1,609,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.00030 ( 0 hom., cov: 33)
Exomes š‘“: 0.000031 ( 0 hom. )

Consequence

ADAM23
ENST00000264377.8 missense, splice_region

Scores

3
16
Splicing: ADA: 0.01213
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.43
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.019226134).
BS2
High AC in GnomAd4 at 46 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ADAM23NM_003812.4 linkuse as main transcriptc.434C>G p.Ala145Gly missense_variant, splice_region_variant 3/26 ENST00000264377.8 NP_003803.1
ADAM23NM_001410985.1 linkuse as main transcriptc.434C>G p.Ala145Gly missense_variant, splice_region_variant 3/26 NP_001397914.1
ADAM23XM_005246932.4 linkuse as main transcriptc.434C>G p.Ala145Gly missense_variant, splice_region_variant 3/25 XP_005246989.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ADAM23ENST00000264377.8 linkuse as main transcriptc.434C>G p.Ala145Gly missense_variant, splice_region_variant 3/261 NM_003812.4 ENSP00000264377 P4O75077-1
ADAM23ENST00000374415.7 linkuse as main transcriptc.434C>G p.Ala145Gly missense_variant, splice_region_variant 3/265 ENSP00000363536 A1

Frequencies

GnomAD3 genomes
AF:
0.000302
AC:
46
AN:
152212
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000812
AC:
20
AN:
246450
Hom.:
0
AF XY:
0.0000375
AC XY:
5
AN XY:
133346
show subpopulations
Gnomad AFR exome
AF:
0.00125
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000309
AC:
45
AN:
1456688
Hom.:
0
Cov.:
30
AF XY:
0.0000207
AC XY:
15
AN XY:
724678
show subpopulations
Gnomad4 AFR exome
AF:
0.00124
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:
0.0000665
GnomAD4 genome
AF:
0.000302
AC:
46
AN:
152330
Hom.:
0
Cov.:
33
AF XY:
0.000295
AC XY:
22
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.00111
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000260
Hom.:
0
Bravo
AF:
0.000400
ESP6500AA
AF:
0.00250
AC:
11
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000132
AC:
16

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 08, 2024The c.434C>G (p.A145G) alteration is located in exon 3 (coding exon 3) of the ADAM23 gene. This alteration results from a C to G substitution at nucleotide position 434, causing the alanine (A) at amino acid position 145 to be replaced by a glycine (G). 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
0.13
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.47
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.079
T;T
Eigen
Benign
-0.13
Eigen_PC
Benign
0.088
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.79
T;T
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.019
T;T
MetaSVM
Benign
-0.65
T
MutationAssessor
Benign
0.41
N;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-1.2
N;N
REVEL
Benign
0.10
Sift
Benign
0.45
T;T
Sift4G
Benign
0.42
T;T
Polyphen
0.037
B;.
Vest4
0.44
MVP
0.17
MPC
0.29
ClinPred
0.10
T
GERP RS
5.1
Varity_R
0.13
gMVP
0.31

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.012
dbscSNV1_RF
Benign
0.11
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs148171905; hg19: chr2-207345957; API