rs199923708

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_001465.6(FYB1):​c.1922T>C​(p.Val641Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000404 in 1,613,176 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00042 ( 0 hom. )

Consequence

FYB1
NM_001465.6 missense

Scores

17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.875

Publications

1 publications found
Variant links:
Genes affected
FYB1 (HGNC:4036): (FYN binding protein 1) The protein encoded by this gene is an adapter for the FYN protein and LCP2 signaling cascades in T-cells. The encoded protein is involved in platelet activation and controls the expression of interleukin-2. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2011]
FYB1 Gene-Disease associations (from GenCC):
  • thrombocytopenia 3
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.032892615).
BP6
Variant 5-39126121-A-G is Benign according to our data. Variant chr5-39126121-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 435272.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FYB1NM_001465.6 linkc.1922T>C p.Val641Ala missense_variant Exon 12 of 19 ENST00000512982.4 NP_001456.3 O15117-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FYB1ENST00000512982.4 linkc.1922T>C p.Val641Ala missense_variant Exon 12 of 19 2 NM_001465.6 ENSP00000425845.3 O15117-2

Frequencies

GnomAD3 genomes
AF:
0.000217
AC:
33
AN:
152042
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
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:
0.000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000258
AC:
64
AN:
248474
AF XY:
0.000237
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000497
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.000424
AC:
619
AN:
1461134
Hom.:
0
Cov.:
31
AF XY:
0.000393
AC XY:
286
AN XY:
726844
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33452
American (AMR)
AF:
0.000112
AC:
5
AN:
44656
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26116
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39668
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.000187
AC:
10
AN:
53346
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.000528
AC:
587
AN:
1111540
Other (OTH)
AF:
0.000265
AC:
16
AN:
60350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
30
60
91
121
151
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
22
44
66
88
110
<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:
0.000217
AC:
33
AN:
152042
Hom.:
0
Cov.:
32
AF XY:
0.000229
AC XY:
17
AN XY:
74258
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41406
American (AMR)
AF:
0.000197
AC:
3
AN:
15234
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000441
AC:
30
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.519
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.000292
Hom.:
0
Bravo
AF:
0.000219
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000362
AC:
3
ExAC
AF:
0.000306
AC:
37
EpiCase
AF:
0.000655
EpiControl
AF:
0.000297

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1Benign:1
Nov 13, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1922T>C (p.V641A) alteration is located in exon 1 (coding exon 1) of the FYB gene. This alteration results from a T to C substitution at nucleotide position 1922, causing the valine (V) at amino acid position 641 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Jan 03, 2017
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Apr 29, 2024
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

BP4, PM1_supporting -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
16
DANN
Benign
0.93
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.44
FATHMM_MKL
Benign
0.67
D
LIST_S2
Benign
0.58
.;T;T
M_CAP
Benign
0.0065
T
MetaRNN
Benign
0.033
T;T;T
MetaSVM
Benign
-0.96
T
PhyloP100
0.88
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-0.18
.;.;N
REVEL
Benign
0.026
Sift
Benign
0.47
.;.;T
Sift4G
Benign
0.28
.;T;T
Vest4
0.18, 0.18
MVP
0.37
ClinPred
0.051
T
GERP RS
-1.8
gMVP
0.10
Mutation Taster
=94/6
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: rs199923708; hg19: chr5-39126223; API