12-132490742-G-A

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001367871.1(FBRSL1):​c.172G>A​(p.Ala58Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000249 in 1,015,914 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000075 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00028 ( 0 hom. )

Consequence

FBRSL1
NM_001367871.1 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -0.269

Publications

0 publications found
Variant links:
Genes affected
FBRSL1 (HGNC:29308): (fibrosin like 1) Enables RNA binding activity. [provided by Alliance of Genome Resources, Apr 2022]
FBRSL1 Gene-Disease associations (from GenCC):
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • syndromic complex neurodevelopmental disorder
    Inheritance: AD Classification: MODERATE Submitted by: Broad Center for Mendelian Genomics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.06429812).
BS2
High AC in GnomAd4 at 11 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FBRSL1NM_001367871.1 linkc.172G>A p.Ala58Thr missense_variant Exon 1 of 19 ENST00000680143.1 NP_001354800.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FBRSL1ENST00000680143.1 linkc.172G>A p.Ala58Thr missense_variant Exon 1 of 19 NM_001367871.1 ENSP00000505341.1 A0A7P0Z485
FBRSL1ENST00000434748.2 linkc.172G>A p.Ala58Thr missense_variant Exon 1 of 17 1 ENSP00000396160.2 Q9HCM7
FBRSL1ENST00000650108.1 linkc.172G>A p.Ala58Thr missense_variant Exon 1 of 20 ENSP00000496901.1 A0A3B3IRR3

Frequencies

GnomAD3 genomes
AF:
0.0000754
AC:
11
AN:
145794
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000493
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000204
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:
0.0000912
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
802
AF XY:
0.00
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000278
AC:
242
AN:
870010
Hom.:
0
Cov.:
28
AF XY:
0.000274
AC XY:
111
AN XY:
404720
show subpopulations
African (AFR)
AF:
0.0000605
AC:
1
AN:
16526
American (AMR)
AF:
0.00
AC:
0
AN:
1776
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
5912
East Asian (EAS)
AF:
0.000159
AC:
1
AN:
6306
South Asian (SAS)
AF:
0.00
AC:
0
AN:
17446
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
3282
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
1706
European-Non Finnish (NFE)
AF:
0.000300
AC:
236
AN:
787650
Other (OTH)
AF:
0.000136
AC:
4
AN:
29406
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
14
27
41
54
68
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.0000754
AC:
11
AN:
145904
Hom.:
0
Cov.:
31
AF XY:
0.0000704
AC XY:
5
AN XY:
71066
show subpopulations
African (AFR)
AF:
0.0000492
AC:
2
AN:
40660
American (AMR)
AF:
0.000204
AC:
3
AN:
14740
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3388
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4982
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4762
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
8406
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
276
European-Non Finnish (NFE)
AF:
0.0000912
AC:
6
AN:
65766
Other (OTH)
AF:
0.00
AC:
0
AN:
2016
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.000169
Hom.:
0
Bravo
AF:
0.000147
ExAC
AF:
0.000220
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 22, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.172G>A (p.A58T) alteration is located in exon 1 (coding exon 1) of the FBRSL1 gene. This alteration results from a G to A substitution at nucleotide position 172, causing the alanine (A) at amino acid position 58 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Oct 20, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0". The threonine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant has not been reported in the literature in individuals affected with FBRSL1-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 58 of the FBRSL1 protein (p.Ala58Thr). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.74
CADD
Benign
17
DANN
Uncertain
0.97
DEOGEN2
Benign
0.00078
T;.
Eigen
Benign
-0.89
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.45
T;T
M_CAP
Pathogenic
0.35
D
MetaRNN
Benign
0.064
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N;.
PhyloP100
-0.27
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-0.040
N;.
REVEL
Benign
0.017
Sift
Benign
0.91
T;.
Sift4G
Benign
0.19
T;.
Polyphen
0.44
B;.
Vest4
0.21
MutPred
0.27
Gain of phosphorylation at A58 (P = 5e-04);Gain of phosphorylation at A58 (P = 5e-04);
MVP
0.014
ClinPred
0.15
T
GERP RS
2.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.025
gMVP
0.10
Mutation Taster
=91/9
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: rs772630698; hg19: chr12-133067328; API