Genetic Variant FRA10AC1:p.Trp127Arg (chr10-93692647-A-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_145246.5(FRA10AC1):c.379T>A(p.Trp127Arg) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

FRA10AC1
NM_145246.5 missense, splice_region

Scores

Splicing: ADA: 0.6308

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.81

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_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.988

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FRA10AC1	NM_145246.5 link	c.379T>A	p.Trp127Arg	missense_variant, splice_region_variant	Exon 6 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.379T>A	p.Trp127Arg	missense_variant, splice_region_variant	Exon 6 of 14	1	NM_145246.5	ENSP00000360488.3		Q70Z53-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000421

AC:

AN:

237560

AF XY:

0.00000776

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000915

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

7.00e-7

AC:

AN:

1429278

Hom.:

Cov.:

AF XY:

0.00000140

AC XY:

AN XY:

712336

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32000

American (AMR)

AF:

0.00

AC:

AN:

41150

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25724

East Asian (EAS)

AF:

0.00

AC:

AN:

38696

South Asian (SAS)

AF:

0.00

AC:

AN:

83414

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53256

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5696

European-Non Finnish (NFE)

AF:

9.17e-7

AC:

AN:

1090192

Other (OTH)

AF:

0.00

AC:

AN:

59150

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000480

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.21

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.38

Eigen

Pathogenic

0.90

Eigen_PC

Pathogenic

0.83

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.88

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.99

MetaSVM

Uncertain

-0.28

MutationAssessor

Pathogenic

3.3

PhyloP100

8.8

PrimateAI

Uncertain

0.71

PROVEAN

Pathogenic

-13

REVEL

Pathogenic

0.77

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.98

MutPred

0.92

Gain of disorder (P = 0.0037);

MVP

0.74

MPC

0.50

ClinPred

1.0

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.91

gMVP

0.84

Mutation Taster

=19/81

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.63

dbscSNV1_RF

Benign

0.55

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over