X-147928762-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_002024.6(FMR1):​c.374C>T​(p.Thr125Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000456 in 1,097,158 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. T125T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000046 ( 0 hom. 2 hem. )

Consequence

FMR1
NM_002024.6 missense

Scores

3
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.98
Variant links:
Genes affected
FMR1 (HGNC:3775): (fragile X messenger ribonucleoprotein 1) The protein encoded by this gene binds RNA and is associated with polysomes. The encoded protein may be involved in mRNA trafficking from the nucleus to the cytoplasm. A trinucleotide repeat (CGG) in the 5' UTR is normally found at 6-53 copies, but an expansion to 55-230 repeats is the cause of fragile X syndrome. Expansion of the trinucleotide repeat may also cause one form of premature ovarian failure (POF1). Multiple alternatively spliced transcript variants that encode different protein isoforms and which are located in different cellular locations have been described for this gene. [provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.4223452).
BS2
High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FMR1NM_002024.6 linkuse as main transcriptc.374C>T p.Thr125Ile missense_variant 5/17 ENST00000370475.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FMR1ENST00000370475.9 linkuse as main transcriptc.374C>T p.Thr125Ile missense_variant 5/171 NM_002024.6 P3Q06787-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000546
AC:
1
AN:
183152
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67694
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:
0.00
Gnomad NFE exome
AF:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000456
AC:
5
AN:
1097158
Hom.:
0
Cov.:
29
AF XY:
0.00000551
AC XY:
2
AN XY:
362662
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000594
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

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 testingGenetic Services Laboratory, University of ChicagoJun 29, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.70
BayesDel_addAF
Benign
-0.0031
T
BayesDel_noAF
Benign
-0.24
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.17
T;.;.;.;.;T;T;.;D;T;T;.
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.90
D;D;D;D;D;D;.;D;D;D;D;D
M_CAP
Benign
0.055
D
MetaRNN
Benign
0.42
T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.53
T
MutationAssessor
Uncertain
2.3
.;M;M;M;.;.;.;.;M;.;.;M
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.64
T
PROVEAN
Pathogenic
-4.6
.;D;D;.;D;.;D;D;D;.;.;D
REVEL
Benign
0.22
Sift
Uncertain
0.0030
.;D;T;.;D;.;D;T;T;.;.;T
Sift4G
Uncertain
0.0090
D;D;D;D;D;D;D;D;D;D;D;D
Polyphen
0.99, 0.47, 0.99, 0.99
.;.;.;D;.;P;P;D;D;.;.;.
Vest4
0.85
MutPred
0.28
Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);Loss of disorder (P = 0.0495);.;Loss of disorder (P = 0.0495);
MVP
0.86
MPC
2.0
ClinPred
0.94
D
GERP RS
5.3
Varity_R
0.81
gMVP
0.78

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: rs797045582; hg19: chrX-147010280; API