rs774617988

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_020866.3(KLHL1):​c.350G>C​(p.Arg117Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,613,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R117G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

KLHL1
NM_020866.3 missense

Scores

4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.20

Publications

0 publications found
Variant links:
Genes affected
KLHL1 (HGNC:6352): (kelch like family member 1) The KLHL1 protein belongs to a family of actin-organizing proteins related to Drosophila Kelch (Nemes et al., 2000 [PubMed 10888605]).[supplied by OMIM, Feb 2010]
ATXN8OS (HGNC:10561): (ATXN8 opposite strand lncRNA) This gene is an antisense transcript to the KLHL1 gene (homolog to the Drosophila KELCH gene); it does not itself appear to be protein coding. A TAC/TGC trinucleotide repeat expansion that is incorporated into this gene transcript, but not the KLHL1 transcript, causes spinocerebellar ataxia type 8. Presumably the expansion interferes with normal antisense function of this transcript. [provided by RefSeq, Oct 2008]
ATXN8OS Gene-Disease associations (from GenCC):
  • spinocerebellar ataxia type 8
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.36000508).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020866.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KLHL1
NM_020866.3
MANE Select
c.350G>Cp.Arg117Thr
missense
Exon 1 of 11NP_065917.1Q9NR64
KLHL1
NM_001286725.2
c.350G>Cp.Arg117Thr
missense
Exon 1 of 10NP_001273654.1F5H1J3
ATXN8OS
NR_002717.3
n.-71C>G
upstream_gene
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KLHL1
ENST00000377844.9
TSL:1 MANE Select
c.350G>Cp.Arg117Thr
missense
Exon 1 of 11ENSP00000367075.4Q9NR64
KLHL1
ENST00000545028.2
TSL:2
c.350G>Cp.Arg117Thr
missense
Exon 1 of 10ENSP00000439602.2F5H1J3
ATXN8OS
ENST00000414504.6
TSL:5
n.138C>G
non_coding_transcript_exon
Exon 1 of 5

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151990
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000484
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:
0.00000399
AC:
1
AN:
250590
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000137
AC:
2
AN:
1461880
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112008
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151990
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74242
show subpopulations
African (AFR)
AF:
0.0000484
AC:
2
AN:
41290
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5156
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.0000113
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Benign
-0.017
T
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
22
DANN
Benign
0.84
DEOGEN2
Benign
0.14
T
Eigen
Benign
-0.023
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.81
T
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.36
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.8
L
PhyloP100
5.2
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-0.42
N
REVEL
Uncertain
0.30
Sift
Benign
0.41
T
Sift4G
Benign
0.75
T
Polyphen
0.0080
B
Vest4
0.62
MutPred
0.47
Gain of sheet (P = 1e-04)
MVP
0.78
MPC
0.086
ClinPred
0.16
T
GERP RS
5.3
Varity_R
0.14
gMVP
0.50
Mutation Taster
=88/12
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: rs774617988; hg19: chr13-70681482; API