rs369355407

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003227.4(TFR2):​c.2246G>A​(p.Arg749Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,601,626 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. R749R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

TFR2
NM_003227.4 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.715

Publications

1 publications found
Variant links:
Genes affected
TFR2 (HGNC:11762): (transferrin receptor 2) This gene encodes a single-pass type II membrane protein, which is a member of the transferrin receptor-like family. This protein mediates cellular uptake of transferrin-bound iron, and may be involved in iron metabolism, hepatocyte function and erythrocyte differentiation. Mutations in this gene have been associated with hereditary hemochromatosis type III. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, May 2011]
TFR2 Gene-Disease associations (from GenCC):
  • hemochromatosis type 3
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Orphanet, ClinGen, PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10374743).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003227.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TFR2
NM_003227.4
MANE Select
c.2246G>Ap.Arg749Gln
missense
Exon 18 of 18NP_003218.2
TFR2
NM_001206855.3
c.1733G>Ap.Arg578Gln
missense
Exon 15 of 15NP_001193784.1Q9UP52-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TFR2
ENST00000223051.8
TSL:1 MANE Select
c.2246G>Ap.Arg749Gln
missense
Exon 18 of 18ENSP00000223051.3Q9UP52-1
TFR2
ENST00000855275.1
c.2342G>Ap.Arg781Gln
missense
Exon 20 of 20ENSP00000525334.1
TFR2
ENST00000855257.1
c.2339G>Ap.Arg780Gln
missense
Exon 20 of 20ENSP00000525316.1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
224262
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
16
AN:
1449424
Hom.:
0
Cov.:
31
AF XY:
0.00000972
AC XY:
7
AN XY:
720012
show subpopulations
African (AFR)
AF:
0.0000603
AC:
2
AN:
33150
American (AMR)
AF:
0.00
AC:
0
AN:
42692
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25850
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38930
South Asian (SAS)
AF:
0.0000354
AC:
3
AN:
84778
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52500
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5236
European-Non Finnish (NFE)
AF:
0.00000994
AC:
11
AN:
1106542
Other (OTH)
AF:
0.00
AC:
0
AN:
59746
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000460
AC:
7
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41462
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.539
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000391
Hom.:
0
Bravo
AF:
0.0000302
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Hereditary hemochromatosis (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
16
DANN
Uncertain
0.98
DEOGEN2
Benign
0.086
T
Eigen
Benign
-0.93
Eigen_PC
Benign
-0.76
FATHMM_MKL
Benign
0.18
N
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.11
N
PhyloP100
-0.71
PrimateAI
Benign
0.33
T
PROVEAN
Benign
0.020
N
REVEL
Benign
0.055
Sift
Benign
0.43
T
Sift4G
Benign
0.46
T
Polyphen
0.12
B
Vest4
0.071
MVP
0.41
MPC
0.38
ClinPred
0.11
T
GERP RS
2.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.035
gMVP
0.31
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs369355407; hg19: chr7-100218640; API