Genetic Variant RBCK1:p.Glu243Gln (chr20-419702-G-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_031229.4(RBCK1):c.727G>C(p.Glu243Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000127 in 1,570,128 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

RBCK1
NM_031229.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.82

Publications

4 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

RBCK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBCK1	NM_031229.4 link	c.727G>C	p.Glu243Gln	missense_variant	Exon 6 of 12	ENST00000356286.10	NP_112506.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBCK1	ENST00000356286.10 link	c.727G>C	p.Glu243Gln	missense_variant	Exon 6 of 12	1	NM_031229.4	ENSP00000348632.6

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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

GnomAD4 exome

AF:

7.05e-7

AC:

AN:

1417884

Hom.:

Cov.:

AF XY:

0.00000142

AC XY:

AN XY:

702256

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32648

American (AMR)

AF:

0.0000253

AC:

AN:

39602

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25396

East Asian (EAS)

AF:

0.00

AC:

AN:

37476

South Asian (SAS)

AF:

0.00

AC:

AN:

81472

European-Finnish (FIN)

AF:

0.00

AC:

AN:

43188

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1093508

Other (OTH)

AF:

0.00

AC:

AN:

58900

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74374

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41454

American (AMR)

AF:

0.0000654

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5204

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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.:

Bravo

AF:

0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Benign

-0.093

BayesDel_noAF

Benign

-0.37

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

T;.

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.87

LIST_S2

Uncertain

0.89

D;D

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.43

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.3

M;.

PhyloP100

5.8

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-1.7

N;N

REVEL

Benign

0.092

Sift

Uncertain

0.0080

D;D

Sift4G

Uncertain

0.042

D;D

Vest4

0.49

ClinPred

0.94

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.14

gMVP

0.90

Mutation Taster

=86/14

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over