15-65077066-G-C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 1P and 5B. PP3BP6BS2

The NM_001101362.3(KBTBD13):​c.251G>C​(p.Cys84Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000231 in 1,514,776 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. C84C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

KBTBD13
NM_001101362.3 missense

Scores

2
13
3

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 4.35

Publications

0 publications found
Variant links:
Genes affected
KBTBD13 (HGNC:37227): (kelch repeat and BTB domain containing 13) The gene belongs to a family of genes encoding proteins containing a BTB domain and several kelch repeats. The BTB domain functions as a protein-protein interaction module, which includes an ability to self-associate or to interact with non-BTB domain-containing proteins. The kelch motif typically occurs in groups of five to seven repeats, and has been found in proteins with diverse functions. Known functions of these family members include transcription regulation, ion channel tetramerization and gating, protein ubiquitination or degradation, and cytoskeleton regulation. The exact function of this family member has yet to be determined. [provided by RefSeq, Jun 2010]
KBTBD13 Gene-Disease associations (from GenCC):
  • nemaline myopathy 6
    Inheritance: AD, Unknown Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, G2P
  • childhood-onset nemaline myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PP3
MetaRNN computational evidence supports a deleterious effect, 0.798
BP6
Variant 15-65077066-G-C is Benign according to our data. Variant chr15-65077066-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 464351.
BS2
High AC in GnomAdExome4 at 31 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001101362.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KBTBD13
NM_001101362.3
MANE Select
c.251G>Cp.Cys84Ser
missense
Exon 1 of 1NP_001094832.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KBTBD13
ENST00000432196.5
TSL:6 MANE Select
c.251G>Cp.Cys84Ser
missense
Exon 1 of 1ENSP00000388723.2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151974
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000340
AC:
4
AN:
117748
AF XY:
0.0000306
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000445
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000457
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000227
AC:
31
AN:
1362802
Hom.:
0
Cov.:
57
AF XY:
0.0000297
AC XY:
20
AN XY:
672538
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29176
American (AMR)
AF:
0.00
AC:
0
AN:
33564
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24392
East Asian (EAS)
AF:
0.0000292
AC:
1
AN:
34252
South Asian (SAS)
AF:
0.0000260
AC:
2
AN:
76986
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
36490
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5444
European-Non Finnish (NFE)
AF:
0.0000253
AC:
27
AN:
1065812
Other (OTH)
AF:
0.0000176
AC:
1
AN:
56686
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
151974
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74262
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41396
American (AMR)
AF:
0.0000656
AC:
1
AN:
15252
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10570
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67952
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
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:
0.0000768
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Nemaline myopathy 6 Uncertain:1Benign:1
Aug 12, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Mar 14, 2017
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Inborn genetic diseases Uncertain:1
Jun 13, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.251G>C (p.C84S) alteration is located in exon 1 (coding exon 1) of the KBTBD13 gene. This alteration results from a G to C substitution at nucleotide position 251, causing the cysteine (C) at amino acid position 84 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

not provided Uncertain:1
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.37
BayesDel_addAF
Benign
0.0093
T
BayesDel_noAF
Uncertain
-0.080
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.48
T
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.78
T
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.80
D
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
4.3
PrimateAI
Pathogenic
0.91
D
PROVEAN
Uncertain
-3.9
D
REVEL
Uncertain
0.51
Sift
Benign
0.061
T
Sift4G
Uncertain
0.019
D
Polyphen
0.99
D
Vest4
0.74
MutPred
0.59
Gain of disorder (P = 0.0216)
MVP
0.48
MPC
1.6
ClinPred
0.72
D
GERP RS
2.6
PromoterAI
-0.030
Neutral
Varity_R
0.29
gMVP
0.59
Mutation Taster
=49/51
disease causing

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: rs999785767; hg19: chr15-65369404; API