Variant 9-76392524-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_018339.6(RFK):c.128C>T(p.Ser43Phe) variant causes a missense change. The variant allele was found at a frequency of 0.0000657 in 1,614,048 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

RFK
NM_018339.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.04

Variant links:

Genes affected

RFK (HGNC:30324): (riboflavin kinase) Riboflavin kinase (RFK; EC 2.7.1.26) is an essential enzyme that catalyzes the phosphorylation of riboflavin (vitamin B2) to form flavin mononucleotide (FMN), an obligatory step in vitamin B2 utilization and flavin cofactor synthesis (Karthikeyan et al., 2003 [PubMed 12623014]).[supplied by OMIM, Nov 2009]

RFK links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.28337008).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RFK	NM_018339.6 linkuse as main transcript	c.128C>T	p.Ser43Phe	missense_variant	2/4	ENST00000376736.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RFK	ENST00000376736.6 linkuse as main transcript	c.128C>T	p.Ser43Phe	missense_variant	2/4	1	NM_018339.6	P1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000852

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000123

AC:

AN:

251454

Hom.:

AF XY:

0.0000957

AC XY:

AN XY:

135906

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000491

Gnomad ASJ exome

AF:

0.000198

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000615

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.0000595

AC:

AN:

1461772

Hom.:

Cov.:

AF XY:

0.0000481

AC XY:

AN XY:

727198

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000492

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000324

Gnomad4 OTH exome

AF:

0.000364

GnomAD4 genome

AF:

0.000125

AC:

AN:

152276

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000851

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000180

Hom.:

Bravo

AF:

0.000196

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 29, 2022

The c.128C>T (p.S43F) alteration is located in exon 2 (coding exon 2) of the RFK gene. This alteration results from a C to T substitution at nucleotide position 128, causing the serine (S) at amino acid position 43 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.28

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.20

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.56

D;.

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.77

T;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.28

T;T

MetaSVM

Uncertain

-0.084

MutationAssessor

Uncertain

2.1

M;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-4.1

D;D

REVEL

Pathogenic

0.65

Sift

Uncertain

0.023

D;D

Sift4G

Uncertain

0.023

D;D

Polyphen

0.94

P;.

Vest4

0.60

MVP

0.19

MPC

0.79

ClinPred

0.26

GERP RS

4.3

Varity_R

0.71

gMVP

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.14

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over