chrX-11298622-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001142.2(AMELX):​c.219C>T​(p.His73=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.203 in 1,207,173 control chromosomes in the GnomAD database, including 17,793 homozygotes. There are 79,614 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.22 ( 2085 hom., 6593 hem., cov: 21)
Exomes 𝑓: 0.20 ( 15708 hom. 73021 hem. )

Consequence

AMELX
NM_001142.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.16
Variant links:
Genes affected
AMELX (HGNC:461): (amelogenin X-linked) This gene encodes a member of the amelogenin family of extracellular matrix proteins. Amelogenins are involved in biomineralization during tooth enamel development. Mutations in this gene cause X-linked amelogenesis imperfecta. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
ARHGAP6 (HGNC:676): (Rho GTPase activating protein 6) This gene encodes a member of the rhoGAP family of proteins which play a role in the regulation of actin polymerization at the plasma membrane during several cellular processes. This protein is thought to have two independent functions, one as a GTPase-activating protein with specificity for RhoA, and another as a cytoskeletal protein that promotes actin remodeling. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.58).
BP6
Variant X-11298622-C-T is Benign according to our data. Variant chrX-11298622-C-T is described in ClinVar as [Benign]. Clinvar id is 262997.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-11298622-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-1.16 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.275 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AMELXNM_001142.2 linkuse as main transcriptc.219C>T p.His73= synonymous_variant 5/6 ENST00000380714.7
ARHGAP6NM_013427.3 linkuse as main transcriptc.589-43915G>A intron_variant ENST00000337414.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AMELXENST00000380714.7 linkuse as main transcriptc.219C>T p.His73= synonymous_variant 5/61 NM_001142.2 P1Q99217-1
ARHGAP6ENST00000337414.9 linkuse as main transcriptc.589-43915G>A intron_variant 1 NM_013427.3 P2O43182-1

Frequencies

GnomAD3 genomes
AF:
0.220
AC:
23971
AN:
109093
Hom.:
2083
Cov.:
21
AF XY:
0.209
AC XY:
6577
AN XY:
31453
show subpopulations
Gnomad AFR
AF:
0.280
Gnomad AMI
AF:
0.0252
Gnomad AMR
AF:
0.134
Gnomad ASJ
AF:
0.240
Gnomad EAS
AF:
0.0220
Gnomad SAS
AF:
0.162
Gnomad FIN
AF:
0.273
Gnomad MID
AF:
0.287
Gnomad NFE
AF:
0.214
Gnomad OTH
AF:
0.212
GnomAD3 exomes
AF:
0.193
AC:
35383
AN:
183261
Hom.:
2478
AF XY:
0.193
AC XY:
13063
AN XY:
67707
show subpopulations
Gnomad AFR exome
AF:
0.288
Gnomad AMR exome
AF:
0.0984
Gnomad ASJ exome
AF:
0.241
Gnomad EAS exome
AF:
0.0243
Gnomad SAS exome
AF:
0.172
Gnomad FIN exome
AF:
0.289
Gnomad NFE exome
AF:
0.219
Gnomad OTH exome
AF:
0.208
GnomAD4 exome
AF:
0.202
AC:
221584
AN:
1098028
Hom.:
15708
Cov.:
33
AF XY:
0.201
AC XY:
73021
AN XY:
363408
show subpopulations
Gnomad4 AFR exome
AF:
0.295
Gnomad4 AMR exome
AF:
0.101
Gnomad4 ASJ exome
AF:
0.242
Gnomad4 EAS exome
AF:
0.0338
Gnomad4 SAS exome
AF:
0.175
Gnomad4 FIN exome
AF:
0.287
Gnomad4 NFE exome
AF:
0.206
Gnomad4 OTH exome
AF:
0.198
GnomAD4 genome
AF:
0.220
AC:
23994
AN:
109145
Hom.:
2085
Cov.:
21
AF XY:
0.209
AC XY:
6593
AN XY:
31515
show subpopulations
Gnomad4 AFR
AF:
0.280
Gnomad4 AMR
AF:
0.134
Gnomad4 ASJ
AF:
0.240
Gnomad4 EAS
AF:
0.0223
Gnomad4 SAS
AF:
0.162
Gnomad4 FIN
AF:
0.273
Gnomad4 NFE
AF:
0.214
Gnomad4 OTH
AF:
0.210
Alfa
AF:
0.160
Hom.:
1235
Bravo
AF:
0.212
EpiCase
AF:
0.217
EpiControl
AF:
0.213

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 09, 2021- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
CADD
Benign
4.4
DANN
Benign
0.83
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs2106416; hg19: chrX-11316742; COSMIC: COSV61624192; API