20-427400-A-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_031229.4(RBCK1):​c.1117A>T​(p.Thr373Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,614,024 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T373T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

RBCK1
NM_031229.4 missense

Scores

2
14
2

Clinical Significance

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

Conservation

PhyloP100: 6.78

Publications

0 publications found
Variant links:
Genes affected
RBCK1 (HGNC:15864): (RANBP2-type and C3HC4-type zinc finger containing 1) Enables several functions, including identical protein binding activity; protein sequestering activity; and ubiquitin binding activity. Involved in several processes, including T cell receptor signaling pathway; cellular protein metabolic process; and regulation of DNA-binding transcription factor activity. Part of LUBAC complex. Implicated in glycogen storage disease. [provided by Alliance of Genome Resources, Apr 2022]
TBC1D20 (HGNC:16133): (TBC1 domain family member 20) This gene encodes a protein that belongs to a family of GTPase activator proteins of Rab-like small GTPases. The encoded protein and its cognate GTPase, Rab1, bind the nonstructural protein 5A (NS5A) of the hepatitis C virus (HCV) to mediate viral replication. Depletion of this protein inhibits replication of the virus and HCV infection. Mutations in this gene are associated with Warburg micro syndrome 4. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]
TBC1D20 Gene-Disease associations (from GenCC):
  • Warburg micro syndrome 4
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
  • Warburg micro syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_031229.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RBCK1
NM_031229.4
MANE Select
c.1117A>Tp.Thr373Ser
missense
Exon 9 of 12NP_112506.2Q9BYM8-1
RBCK1
NM_001410770.1
c.1168A>Tp.Thr390Ser
missense
Exon 9 of 12NP_001397699.1A0A8V8TMZ2
RBCK1
NM_006462.6
c.991A>Tp.Thr331Ser
missense
Exon 8 of 11NP_006453.1Q9BYM8-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RBCK1
ENST00000356286.10
TSL:1 MANE Select
c.1117A>Tp.Thr373Ser
missense
Exon 9 of 12ENSP00000348632.6Q9BYM8-1
RBCK1
ENST00000353660.7
TSL:1
c.991A>Tp.Thr331Ser
missense
Exon 8 of 11ENSP00000254960.5Q9BYM8-3
RBCK1
ENST00000382181.2
TSL:1
n.*137A>T
non_coding_transcript_exon
Exon 7 of 10ENSP00000371616.3Q9BYM8-4

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152032
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000770
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:
0.0000278
AC:
7
AN:
251458
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000326
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000889
AC:
13
AN:
1461874
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.000327
AC:
13
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111992
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
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

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:
152150
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74388
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41506
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000772
AC:
4
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67980
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.538
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000340
ExAC
AF:
0.0000330
AC:
4

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
Polyglucosan body myopathy type 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.090
T
BayesDel_noAF
Uncertain
-0.070
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.72
D
Eigen
Pathogenic
0.76
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.87
D
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.60
D
MetaSVM
Uncertain
0.37
D
MutationAssessor
Uncertain
2.5
M
PhyloP100
6.8
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-3.7
D
REVEL
Uncertain
0.64
Sift
Uncertain
0.018
D
Sift4G
Uncertain
0.012
D
Polyphen
1.0
D
Vest4
0.34
MutPred
0.44
Gain of loop (P = 0.0435)
MVP
0.85
MPC
1.2
ClinPred
0.92
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.48
gMVP
0.76
Mutation Taster
=36/64
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: rs531364402; hg19: chr20-408044; API