chr8-144356181-G-A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_012162.4(FBXL6):​c.1259C>T​(p.Thr420Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000342 in 1,551,504 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.0000080 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

FBXL6
NM_012162.4 missense

Scores

15

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.692

Publications

0 publications found
Variant links:
Genes affected
FBXL6 (HGNC:13603): (F-box and leucine rich repeat protein 6) This gene encodes a member of a family of proteins that are characterized by an F-box motif. The encoded protein also contains leucine-rich repeats. F-box-containing proteins comprise one of the subunits of the SCF (SKP1-cullin-F-box) complex, which functions in phosphorylation-dependent ubiquitination. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
SLC52A2 (HGNC:30224): (solute carrier family 52 member 2) This gene encodes a membrane protein which belongs to the riboflavin transporter family. In humans, riboflavin must be obtained by intestinal absorption because it cannot be synthesized by the body. The water-soluble vitamin riboflavin is processed to the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) which then act as intermediaries in many cellular metabolic reactions. Paralogous members of the riboflavin transporter gene family are located on chromosomes 17 and 20. Unlike other members of this family, this gene has higher expression in brain tissue than small intestine. Alternative splicing of this gene results in multiple transcript variants encoding the same protein. Mutations in this gene have been associated with Brown-Vialetto-Van Laere syndrome 2 - an autosomal recessive progressive neurologic disorder characterized by deafness, bulbar dysfunction, and axial and limb hypotonia. [provided by RefSeq, Jul 2012]
SLC52A2 Gene-Disease associations (from GenCC):
  • Brown-Vialetto-van Laere syndrome 2
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.056131214).
BP6
Variant 8-144356181-G-A is Benign according to our data. Variant chr8-144356181-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2356346.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012162.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FBXL6
NM_012162.4
MANE Select
c.1259C>Tp.Thr420Met
missense
Exon 8 of 9NP_036294.2Q8N531-1
FBXL6
NM_024555.6
c.1241C>Tp.Thr414Met
missense
Exon 8 of 9NP_078831.4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FBXL6
ENST00000331890.6
TSL:1 MANE Select
c.1259C>Tp.Thr420Met
missense
Exon 8 of 9ENSP00000330098.5Q8N531-1
FBXL6
ENST00000455319.6
TSL:1
c.1241C>Tp.Thr414Met
missense
Exon 8 of 9ENSP00000403873.2Q8N531-2
FBXL6
ENST00000530142.5
TSL:1
n.2647C>T
non_coding_transcript_exon
Exon 7 of 8

Frequencies

GnomAD3 genomes
AF:
0.00000797
AC:
1
AN:
125394
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000295
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
GnomAD2 exomes
AF:
0.0000240
AC:
6
AN:
250212
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000365
AC:
52
AN:
1426110
Hom.:
0
Cov.:
35
AF XY:
0.0000366
AC XY:
26
AN XY:
709444
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32534
American (AMR)
AF:
0.0000463
AC:
2
AN:
43220
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25144
East Asian (EAS)
AF:
0.0000583
AC:
2
AN:
34282
South Asian (SAS)
AF:
0.0000234
AC:
2
AN:
85566
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49138
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5622
European-Non Finnish (NFE)
AF:
0.0000384
AC:
42
AN:
1092668
Other (OTH)
AF:
0.0000690
AC:
4
AN:
57936
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00000797
AC:
1
AN:
125394
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
60898
show subpopulations
African (AFR)
AF:
0.0000295
AC:
1
AN:
33952
American (AMR)
AF:
0.00
AC:
0
AN:
11570
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3030
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3612
South Asian (SAS)
AF:
0.00
AC:
0
AN:
3580
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
8398
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
274
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
58496
Other (OTH)
AF:
0.00
AC:
0
AN:
1706
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.825
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.00346
AC:
12
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.057
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
8.5
DANN
Benign
0.85
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.014
N
M_CAP
Benign
0.0040
T
MetaRNN
Benign
0.056
T
MetaSVM
Benign
-1.0
T
PhyloP100
-0.69
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.83
N
REVEL
Benign
0.010
Sift
Benign
0.21
T
Sift4G
Benign
0.32
T
Vest4
0.14
MutPred
0.30
Loss of phosphorylation at T420 (P = 0.0418)
MVP
0.22
MPC
0.043
ClinPred
0.010
T
GERP RS
-3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
gMVP
0.32
Mutation Taster
=95/5
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs374549929; hg19: chr8-145579841; API