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rs782738200

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002024.6(FMR1):​c.1580G>A​(p.Arg527His) variant causes a missense change. The variant allele was found at a frequency of 0.0000174 in 1,204,066 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 5 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 10/16 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R527S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000091 ( 0 hom., 0 hem., cov: 22)
Exomes 𝑓: 0.000018 ( 0 hom. 5 hem. )

Consequence

FMR1
NM_002024.6 missense

Scores

3
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.65
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 -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.23942086).
BS2
High Hemizygotes in GnomAdExome4 at 5 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FMR1NM_002024.6 linkuse as main transcriptc.1580G>A p.Arg527His missense_variant 15/17 ENST00000370475.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FMR1ENST00000370475.9 linkuse as main transcriptc.1580G>A p.Arg527His missense_variant 15/171 NM_002024.6 P3Q06787-1

Frequencies

GnomAD3 genomes
AF:
0.00000909
AC:
1
AN:
109963
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
32213
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000190
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000288
AC:
5
AN:
173482
Hom.:
0
AF XY:
0.0000170
AC XY:
1
AN XY:
58990
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:
0.0000528
Gnomad OTH exome
AF:
0.000229
GnomAD4 exome
AF:
0.0000183
AC:
20
AN:
1094103
Hom.:
0
Cov.:
33
AF XY:
0.0000139
AC XY:
5
AN XY:
359905
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:
0.0000226
Gnomad4 OTH exome
AF:
0.0000218
GnomAD4 genome
AF:
0.00000909
AC:
1
AN:
109963
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
32213
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000190
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 26, 2016Lines of evidence used in support of classification: UNCERTAIN: Alteration(s) of Uncertain Clinical Significance Detected -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.32
BayesDel_addAF
Benign
-0.056
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
26
DANN
Uncertain
1.0
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.53
T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.24
T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
D;D;D;D;D;D;N
PROVEAN
Benign
0.070
N
REVEL
Benign
0.089
Sift
Uncertain
0.0040
D
Sift4G
Benign
0.30
T
Vest4
0.43
MutPred
0.098
Gain of phosphorylation at A437 (P = 0.0285);
MVP
0.89
ClinPred
0.35
T
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8

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: rs782738200; hg19: chrX-147026497; COSMIC: COSV54423607; COSMIC: COSV54423607; API