10-93694925-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_145246.5(FRA10AC1):c.232A>G(p.Thr78Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000073 in 1,506,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00034 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

FRA10AC1
NM_145246.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.40

Publications

1 publications found

Variant links:

Genes affected

FRA10AC1 (HGNC:1162): (FRA10A associated CGG repeat 1) The protein encoded by this gene is a nuclear phosphoprotein of unknown function. This gene contains a tandem CGG repeat region within a CpG island that normally consists of 8-14 repeats but can expand to over 200 repeats. The repeat region is within the 5' UTR of some transcript variants, but is intronic to another variant. The expanded repeat allele is a fragile site and becomes hypermethylated, causing a reduction in gene expression. A disease phenotype has not been associated with expanded alleles. This gene is found within the rare FRA10A folate-sensitive fragile site. [provided by RefSeq, Dec 2016]

FRA10AC1 Gene-Disease associations (from GenCC):

neurodevelopmental disorder with growth retardation, dysmorphic facies, and corpus callosum abnormalities
Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics

FRA10AC1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.023596674).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000342 (52/152204) while in subpopulation AFR AF = 0.00123 (51/41522). AF 95% confidence interval is 0.000959. There are 0 homozygotes in GnomAd4. There are 23 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FRA10AC1	NM_145246.5 link	c.232A>G	p.Thr78Ala	missense_variant	Exon 5 of 14	ENST00000359204.5	NP_660289.2	Q70Z53-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FRA10AC1	ENST00000359204.5 link	c.232A>G	p.Thr78Ala	missense_variant	Exon 5 of 14	1	NM_145246.5	ENSP00000360488.3		Q70Z53-1

Frequencies

GnomAD3 genomes

AF:

0.000342

AC:

AN:

152088

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00123

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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

GnomAD2 exomes

AF:

0.0000719

AC:

AN:

250362

AF XY:

0.0000739

show subpopulations

Gnomad AFR exome

AF:

0.00105

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:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000428

AC:

AN:

1354574

Hom.:

Cov.:

AF XY:

0.0000441

AC XY:

AN XY:

679786

show subpopulations

African (AFR)

AF:

0.00150

AC:

AN:

32626

American (AMR)

AF:

0.00

AC:

AN:

44256

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25474

East Asian (EAS)

AF:

0.00

AC:

AN:

39206

South Asian (SAS)

AF:

0.00

AC:

AN:

83874

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53174

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5586

European-Non Finnish (NFE)

AF:

0.00000197

AC:

AN:

1013520

Other (OTH)

AF:

0.000106

AC:

AN:

56858

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000342

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74416

show subpopulations

African (AFR)

AF:

0.00123

AC:

AN:

41522

American (AMR)

AF:

0.0000654

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10582

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000643

Hom.:

Bravo

AF:

0.000370

ESP6500AA

AF:

0.00136

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Nov 07, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.232A>G (p.T78A) alteration is located in exon 5 (coding exon 4) of the FRA10AC1 gene. This alteration results from a A to G substitution at nucleotide position 232, causing the threonine (T) at amino acid position 78 to be replaced by an alanine (A). 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

0.068

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0034

Eigen

Benign

-0.14

Eigen_PC

Benign

0.050

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.77

M_CAP

Benign

0.0081

MetaRNN

Benign

0.024

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

PhyloP100

3.4

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.55

REVEL

Benign

0.048

Sift

Uncertain

0.0080

Sift4G

Uncertain

0.0050

Polyphen

0.0

Vest4

0.11

MVP

0.32

MPC

0.060

ClinPred

0.070

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.074

gMVP

0.18

Mutation Taster

=85/15

polymorphism

(source)

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

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10-93694925-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over