10-93692719-T-C

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS1_Supporting

The NM_145246.5(FRA10AC1):​c.307A>G​(p.Lys103Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000197 in 1,579,700 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00021 ( 1 hom. )

Consequence

FRA10AC1
NM_145246.5 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.56

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.00021 (300/1427396) while in subpopulation SAS AF = 0.000975 (78/80010). AF 95% confidence interval is 0.0008. There are 1 homozygotes in GnomAdExome4. There are 171 alleles in the male GnomAdExome4 subpopulation. Median coverage is 27. 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
FRA10AC1NM_145246.5 linkc.307A>G p.Lys103Glu missense_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
FRA10AC1ENST00000359204.5 linkc.307A>G p.Lys103Glu missense_variant Exon 6 of 14 1 NM_145246.5 ENSP00000360488.3 Q70Z53-1

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152186
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000168
AC:
37
AN:
220058
AF XY:
0.000192
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000388
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000964
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000210
AC:
300
AN:
1427396
Hom.:
1
Cov.:
27
AF XY:
0.000241
AC XY:
171
AN XY:
709962
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31180
American (AMR)
AF:
0.0000270
AC:
1
AN:
37010
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25254
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37742
South Asian (SAS)
AF:
0.000975
AC:
78
AN:
80010
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52972
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5688
European-Non Finnish (NFE)
AF:
0.000198
AC:
217
AN:
1098442
Other (OTH)
AF:
0.0000677
AC:
4
AN:
59098
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.451
Heterozygous variant carriers
0
13
26
39
52
65
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000722
AC:
11
AN:
152304
Hom.:
0
Cov.:
31
AF XY:
0.0000806
AC XY:
6
AN XY:
74476
show subpopulations
African (AFR)
AF:
0.0000962
AC:
4
AN:
41576
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.000621
AC:
3
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.534
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000128
Hom.:
0
Bravo
AF:
0.0000529
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000198
AC:
24
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Sep 22, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.307A>G (p.K103E) alteration is located in exon 6 (coding exon 5) of the FRA10AC1 gene. This alteration results from a A to G substitution at nucleotide position 307, causing the lysine (K) at amino acid position 103 to be replaced by a glutamic acid (E). 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
Uncertain
0.53
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.11
T
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D
M_CAP
Benign
0.028
D
MetaRNN
Uncertain
0.55
D
MetaSVM
Benign
-0.65
T
MutationAssessor
Pathogenic
3.1
M
PhyloP100
7.6
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-3.7
D
REVEL
Uncertain
0.48
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0050
D
Polyphen
1.0
D
Vest4
0.81
MVP
0.47
MPC
0.44
ClinPred
0.45
T
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.69
gMVP
0.75
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs374011831; hg19: chr10-95452476; API