Variant 9-76387479-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_018339.6(RFK):c.388C>A(p.Leu130Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000695 in 1,611,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000074 ( 0 hom. )

Consequence

RFK
NM_018339.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.74

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 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.85

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RFK	NM_018339.6 linkuse as main transcript	c.388C>A	p.Leu130Ile	missense_variant	4/4	ENST00000376736.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RFK	ENST00000376736.6 linkuse as main transcript	c.388C>A	p.Leu130Ile	missense_variant	4/4	1	NM_018339.6	P1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152170

Hom.:

Cov.:

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000240

AC:

AN:

250470

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135484

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000740

AC:

108

AN:

1459656

Hom.:

Cov.:

AF XY:

0.0000812

AC XY:

AN XY:

726258

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000936

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000340

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

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

Oct 05, 2022

The c.388C>A (p.L130I) alteration is located in exon 4 (coding exon 4) of the RFK gene. This alteration results from a C to A substitution at nucleotide position 388, causing the leucine (L) at amino acid position 130 to be replaced by an isoleucine (I). 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

Uncertain

0.50

BayesDel_addAF

Uncertain

0.034

BayesDel_noAF

Uncertain

-0.030

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.42

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.033

MetaRNN

Pathogenic

0.85

MetaSVM

Uncertain

-0.031

MutationAssessor

Pathogenic

3.2

MutationTaster

Benign

1.0

PrimateAI

Benign

0.44

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.37

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0050

Polyphen

0.94

Vest4

0.62

MutPred

0.72

Loss of ubiquitination at K128 (P = 0.0578);

MVP

0.53

MPC

0.93

ClinPred

0.86

GERP RS

3.8

Varity_R

0.69

gMVP

0.66

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

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