X-147981574-C-T

Variant summary

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

The NM_152578.3(FMR1NB):​c.172C>T​(p.Arg58Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000579 in 1,209,775 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 1 hem., cov: 21)
Exomes 𝑓: 0.0000055 ( 0 hom. 3 hem. )

Consequence

FMR1NB
NM_152578.3 missense

Scores

2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.374
Variant links:
Genes affected
FMR1NB (HGNC:26372): (FMR1 neighbor) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

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=0.15622842).
BS2
High Hemizygotes in GnomAdExome4 at 3 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FMR1NBNM_152578.3 linkuse as main transcriptc.172C>T p.Arg58Trp missense_variant 1/6 ENST00000370467.8 NP_689791.1 Q8N0W7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FMR1NBENST00000370467.8 linkuse as main transcriptc.172C>T p.Arg58Trp missense_variant 1/61 NM_152578.3 ENSP00000359498.3 Q8N0W7

Frequencies

GnomAD3 genomes
AF:
0.00000896
AC:
1
AN:
111566
Hom.:
0
Cov.:
21
AF XY:
0.0000296
AC XY:
1
AN XY:
33762
show subpopulations
Gnomad AFR
AF:
0.0000326
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000110
AC:
2
AN:
181824
Hom.:
0
AF XY:
0.0000149
AC XY:
1
AN XY:
67256
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
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:
0.00
Gnomad OTH exome
AF:
0.000221
GnomAD4 exome
AF:
0.00000546
AC:
6
AN:
1098209
Hom.:
0
Cov.:
34
AF XY:
0.00000825
AC XY:
3
AN XY:
363565
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
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:
0.00000475
Gnomad4 OTH exome
AF:
0.0000217
GnomAD4 genome
AF:
0.00000896
AC:
1
AN:
111566
Hom.:
0
Cov.:
21
AF XY:
0.0000296
AC XY:
1
AN XY:
33762
show subpopulations
Gnomad4 AFR
AF:
0.0000326
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:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

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 testingAmbry GeneticsDec 05, 2024The c.172C>T (p.R58W) alteration is located in exon 1 (coding exon 1) of the FMR1NB gene. This alteration results from a C to T substitution at nucleotide position 172, causing the arginine (R) at amino acid position 58 to be replaced by a tryptophan (W). 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
0.13
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.77
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T
FATHMM_MKL
Benign
0.029
N
LIST_S2
Benign
0.60
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.55
N
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-2.6
D
REVEL
Benign
0.038
Sift
Benign
0.14
T
Sift4G
Benign
0.10
T
Polyphen
1.0
D
Vest4
0.32
MutPred
0.43
Loss of disorder (P = 0.004);
MVP
0.26
MPC
0.22
ClinPred
0.87
D
GERP RS
1.0
Varity_R
0.11
gMVP
0.082

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: rs782029879; hg19: chrX-147063094; COSMIC: COSV65071560; API