Genetic Variant RCBTB1:p.Gln504His (chr13-49534206-C-G) – 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_018191.4(RCBTB1):c.1512G>C(p.Gln504His) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,820 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RCBTB1
NM_018191.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.89

Publications

0 publications found

Variant links:

Genes affected

RCBTB1 (HGNC:18243): (RCC1 and BTB domain containing protein 1) This gene encodes a protein with an N-terminal RCC1 domain and a C-terminal BTB (broad complex, tramtrack and bric-a-brac) domain. In rat, over-expression of this gene in vascular smooth muscle cells induced cellular hypertrophy. In rat, the C-terminus of RCBTB1 interacts with the angiotensin II receptor-1A. In humans, this gene maps to a region of chromosome 13q that is frequently deleted in B-cell chronic lymphocytic leukemia and other lymphoid malignancies. [provided by RefSeq, Jul 2008]

RCBTB1 Gene-Disease associations (from GenCC):

RCBTB1-related retinopathy
Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Ambry Genetics, Laboratory for Molecular Medicine
reticular dystrophy of the retinal pigment epithelium
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
exudative vitreoretinopathy
Inheritance: AD Classification: LIMITED Submitted by: G2P, Ambry Genetics

RCBTB1 links:

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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;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018191.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RCBTB1	NM_018191.4	MANE Select	c.1512G>C	p.Gln504His	missense	Exon 13 of 13	NP_060661.3
RCBTB1	NM_001352500.2		c.1512G>C	p.Gln504His	missense	Exon 13 of 13	NP_001339429.1	Q8NDN9-1
RCBTB1	NM_001352501.2		c.1512G>C	p.Gln504His	missense	Exon 12 of 12	NP_001339430.1	Q8NDN9-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RCBTB1	ENST00000378302.7	TSL:1 MANE Select	c.1512G>C	p.Gln504His	missense	Exon 13 of 13	ENSP00000367552.2	Q8NDN9-1
RCBTB1	ENST00000258646.3	TSL:2	c.1512G>C	p.Gln504His	missense	Exon 11 of 11	ENSP00000258646.3	Q8NDN9-1
RCBTB1	ENST00000860932.1		c.1512G>C	p.Gln504His	missense	Exon 12 of 12	ENSP00000530991.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461820

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727220

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111950

Other (OTH)

AF:

0.00

AC:

AN:

60394

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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.68

BayesDel_addAF

Uncertain

0.061

BayesDel_noAF

Benign

-0.15

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.24

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.025

MetaRNN

Uncertain

0.71

MetaSVM

Benign

-0.73

MutationAssessor

Uncertain

2.3

PhyloP100

3.9

PrimateAI

Pathogenic

0.81

PROVEAN

Uncertain

-3.5

REVEL

Benign

0.27

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0040

Polyphen

0.99

Vest4

0.70

MutPred

0.45

Gain of catalytic residue at F508 (P = 0)

MVP

0.61

MPC

0.34

ClinPred

0.96

GERP RS

4.9

Varity_R

0.65

gMVP

0.79

Mutation Taster

=45/55

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over