chr1-212859047-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM5BP4_ModerateBS1_Supporting

The NM_014053.4(FLVCR1):c.595C>T(p.Leu199Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000118 in 1,612,494 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L199P) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

FLVCR1
NM_014053.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:8

Conservation

PhyloP100: 5.69

Publications

4 publications found

Variant links:

Genes affected

FLVCR1 (HGNC:24682): (FLVCR choline and heme transporter 1) This gene encodes a member of the major facilitator superfamily of transporter proteins. The encoded protein is a heme transporter that may play a critical role in erythropoiesis by protecting developing erythroid cells from heme toxicity. This gene may play a role in posterior column ataxia with retinitis pigmentosa and the hematological disorder Diamond-Blackfan syndrome. [provided by RefSeq, Jan 2011]

FLVCR1 Gene-Disease associations (from GenCC):

FLVCR1-related retinopathy with or without ataxia
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
posterior column ataxia-retinitis pigmentosa syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), G2P, Orphanet

FLVCR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr1-212859048-T-C is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 3767315.Status of the report is criteria_provided_single_submitter, 1 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.105155855).

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000269 (41/152304) while in subpopulation AMR AF = 0.00137 (21/15304). AF 95% confidence interval is 0.000919. There are 0 homozygotes in GnomAd4. There are 27 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014053.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLVCR1	NM_014053.4	MANE Select	c.595C>T	p.Leu199Phe	missense	Exon 1 of 10	NP_054772.1	Q9Y5Y0-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FLVCR1	ENST00000366971.9	TSL:1 MANE Select	c.595C>T	p.Leu199Phe	missense	Exon 1 of 10	ENSP00000355938.4	Q9Y5Y0-1
FLVCR1	ENST00000867613.1		c.595C>T	p.Leu199Phe	missense	Exon 1 of 11	ENSP00000537672.1
FLVCR1	ENST00000971333.1		c.595C>T	p.Leu199Phe	missense	Exon 1 of 10	ENSP00000641392.1

Frequencies

GnomAD3 genomes

AF:

0.000269

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00137

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:

0.000206

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000180

AC:

AN:

250250

AF XY:

0.000140

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000782

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000973

Gnomad OTH exome

AF:

0.000655

GnomAD4 exome

AF:

0.000103

AC:

150

AN:

1460190

Hom.:

Cov.:

AF XY:

0.000101

AC XY:

AN XY:

726148

show subpopulations

African (AFR)

AF:

0.000209

AC:

AN:

33442

American (AMR)

AF:

0.000716

AC:

AN:

44672

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26056

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39652

South Asian (SAS)

AF:

0.00

AC:

AN:

86174

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53324

Middle Eastern (MID)

AF:

0.00140

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.0000729

AC:

AN:

1110848

Other (OTH)

AF:

0.000348

AC:

AN:

60324

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000269

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74470

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41570

American (AMR)

AF:

0.00137

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000206

AC:

AN:

68022

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

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:

0.000176

Hom.:

Bravo

AF:

0.000348

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (6)

Inborn genetic diseases (1)

Posterior column ataxia-retinitis pigmentosa syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Uncertain

-0.020

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.51

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.90

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.11

MetaSVM

Uncertain

0.69

MutationAssessor

Uncertain

2.8

PhyloP100

5.7

PrimateAI

Uncertain

0.54

PROVEAN

Uncertain

-3.3

REVEL

Uncertain

0.61

Sift

Benign

0.043

Sift4G

Uncertain

0.022

Polyphen

0.98

Vest4

0.37

MVP

1.0

MPC

2.0

ClinPred

0.40

GERP RS

5.4

PromoterAI

0.076

Neutral

(source)

Varity_R

0.69

gMVP

0.19

Mutation Taster

=67/33

polymorphism

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over