20-420896-A-G

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_031229.4(RBCK1):​c.782A>G​(p.Asn261Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000394 in 1,554,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00048 ( 0 hom., cov: 26)
Exomes 𝑓: 0.00038 ( 0 hom. )

Consequence

RBCK1
NM_031229.4 missense

Scores

11
8

Clinical Significance

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

Conservation

PhyloP100: 4.90

Publications

1 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]
RBCK1 Gene-Disease associations (from GenCC):
  • polyglucosan body myopathy 1 with or without immunodeficiency
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, PanelApp Australia
  • autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • polyglucosan body myopathy type 1
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.010425061).
BP6
Variant 20-420896-A-G is Benign according to our data. Variant chr20-420896-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 475186.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000484 (72/148820) while in subpopulation AMR AF = 0.00113 (17/15018). AF 95% confidence interval is 0.000721. There are 0 homozygotes in GnomAd4. There are 29 alleles in the male GnomAd4 subpopulation. Median coverage is 26. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBCK1NM_031229.4 linkc.782A>G p.Asn261Ser missense_variant Exon 7 of 12 ENST00000356286.10 NP_112506.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBCK1ENST00000356286.10 linkc.782A>G p.Asn261Ser missense_variant Exon 7 of 12 1 NM_031229.4 ENSP00000348632.6 Q9BYM8-1

Frequencies

GnomAD3 genomes
AF:
0.000491
AC:
73
AN:
148704
Hom.:
0
Cov.:
26
show subpopulations
Gnomad AFR
AF:
0.000199
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00113
Gnomad ASJ
AF:
0.00725
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00955
Gnomad NFE
AF:
0.000283
Gnomad OTH
AF:
0.000492
GnomAD2 exomes
AF:
0.000750
AC:
120
AN:
160082
AF XY:
0.000756
show subpopulations
Gnomad AFR exome
AF:
0.000107
Gnomad AMR exome
AF:
0.000827
Gnomad ASJ exome
AF:
0.00810
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000279
Gnomad OTH exome
AF:
0.00246
GnomAD4 exome
AF:
0.000385
AC:
541
AN:
1405874
Hom.:
0
Cov.:
32
AF XY:
0.000405
AC XY:
281
AN XY:
694356
show subpopulations
African (AFR)
AF:
0.000124
AC:
4
AN:
32270
American (AMR)
AF:
0.000876
AC:
32
AN:
36510
Ashkenazi Jewish (ASJ)
AF:
0.00948
AC:
239
AN:
25218
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36968
South Asian (SAS)
AF:
0.000100
AC:
8
AN:
79936
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48144
Middle Eastern (MID)
AF:
0.00210
AC:
9
AN:
4276
European-Non Finnish (NFE)
AF:
0.000169
AC:
183
AN:
1084388
Other (OTH)
AF:
0.00113
AC:
66
AN:
58164
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
30
59
89
118
148
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000484
AC:
72
AN:
148820
Hom.:
0
Cov.:
26
AF XY:
0.000399
AC XY:
29
AN XY:
72630
show subpopulations
African (AFR)
AF:
0.000199
AC:
8
AN:
40242
American (AMR)
AF:
0.00113
AC:
17
AN:
15018
Ashkenazi Jewish (ASJ)
AF:
0.00725
AC:
25
AN:
3450
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4836
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4608
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10374
Middle Eastern (MID)
AF:
0.00690
AC:
2
AN:
290
European-Non Finnish (NFE)
AF:
0.000283
AC:
19
AN:
67058
Other (OTH)
AF:
0.000486
AC:
1
AN:
2056
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
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

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:
0.00125
Hom.:
0
Bravo
AF:
0.000597
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000120
AC:
1
ExAC
AF:
0.000273
AC:
31

ClinVar

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

Submissions by phenotype

not provided Uncertain:2
Feb 01, 2017
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 17, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Observed in the homozygous state in a fetus with dilated heart and somewhat tortuous PDA who was also found to have variants in additional genes (PMID: 36068917); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 36068917) -

Polyglucosan body myopathy type 1 Benign:1
Jan 15, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

RBCK1-related disorder Benign:1
Oct 10, 2023
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.53
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.57
D;.
Eigen
Uncertain
0.25
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.010
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
M;.
PhyloP100
4.9
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-2.8
D;D
REVEL
Benign
0.14
Sift
Uncertain
0.0080
D;D
Sift4G
Uncertain
0.013
D;D
Polyphen
0.54
P;P
Vest4
0.48
MVP
0.37
MPC
1.1
ClinPred
0.063
T
GERP RS
4.4
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.8
Varity_R
0.13
gMVP
0.84
Mutation Taster
=66/34
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs377605009; hg19: chr20-401540; API