chr10-133263172-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001109.5(ADAM8):​c.2459C>T​(p.Ala820Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000305 in 1,613,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A820T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 35)
Exomes 𝑓: 0.00032 ( 0 hom. )

Consequence

ADAM8
NM_001109.5 missense

Scores

2
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.68
Variant links:
Genes affected
ADAM8 (HGNC:215): (ADAM metallopeptidase domain 8) 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. The protein encoded by this gene may be involved in cell adhesion during neurodegeneration, and it is thought to be a target for allergic respiratory diseases, including asthma. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.031574696).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADAM8NM_001109.5 linkuse as main transcriptc.2459C>T p.Ala820Val missense_variant 23/23 ENST00000445355.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADAM8ENST00000445355.8 linkuse as main transcriptc.2459C>T p.Ala820Val missense_variant 23/231 NM_001109.5 P2P78325-1
ADAM8ENST00000415217.7 linkuse as main transcriptc.*63C>T 3_prime_UTR_variant 22/221 A2P78325-3
ADAM8ENST00000485491.6 linkuse as main transcriptc.2186C>T p.Ala729Val missense_variant 20/202 P78325-2
ADAM8ENST00000559018.1 linkuse as main transcriptn.240C>T non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.000184
AC:
28
AN:
152248
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000382
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000156
AC:
39
AN:
250562
Hom.:
0
AF XY:
0.000125
AC XY:
17
AN XY:
135500
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.000336
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000317
AC:
464
AN:
1461524
Hom.:
0
Cov.:
32
AF XY:
0.000279
AC XY:
203
AN XY:
727066
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.000400
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.000184
AC:
28
AN:
152366
Hom.:
0
Cov.:
35
AF XY:
0.000215
AC XY:
16
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.000382
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000297
Hom.:
0
Bravo
AF:
0.000208
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.000181
AC:
22
EpiCase
AF:
0.000109
EpiControl
AF:
0.000237

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 GeneticsFeb 08, 2023The c.2459C>T (p.A820V) alteration is located in exon 23 (coding exon 23) of the ADAM8 gene. This alteration results from a C to T substitution at nucleotide position 2459, causing the alanine (A) at amino acid position 820 to be replaced by a valine (V). 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
0.082
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
18
DANN
Benign
0.75
DEOGEN2
Benign
0.068
T;.
FATHMM_MKL
Benign
0.093
N
LIST_S2
Benign
0.53
T;T
M_CAP
Benign
0.00077
T
MetaRNN
Benign
0.032
T;T
MutationAssessor
Benign
0.69
N;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.80
N;N
Sift
Pathogenic
0.0
D;T
Sift4G
Pathogenic
0.0
D;T
Vest4
0.087
MVP
0.39
MPC
0.15
GERP RS
-0.31
Varity_R
0.12
gMVP
0.058

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

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

Other links and lift over

dbSNP: rs200356896; hg19: chr10-135076676; API