chr7-100627489-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003227.4(TFR2):ā€‹c.1770C>Gā€‹(p.Asp590Glu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,611,492 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.000033 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

TFR2
NM_003227.4 missense, splice_region

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -4.30
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04321432).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TFR2NM_003227.4 linkc.1770C>G p.Asp590Glu missense_variant, splice_region_variant 16/18 ENST00000223051.8 NP_003218.2 Q9UP52-1
TFR2NM_001206855.3 linkc.1257C>G p.Asp419Glu missense_variant, splice_region_variant 13/15 NP_001193784.1 Q9UP52-2
LOC124901709XR_007060454.1 linkn.434-3667G>C intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TFR2ENST00000223051.8 linkc.1770C>G p.Asp590Glu missense_variant, splice_region_variant 16/181 NM_003227.4 ENSP00000223051.3 Q9UP52-1

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152210
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000408
AC:
1
AN:
245126
Hom.:
0
AF XY:
0.00000754
AC XY:
1
AN XY:
132632
show subpopulations
Gnomad AFR exome
AF:
0.0000635
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1459282
Hom.:
0
Cov.:
40
AF XY:
0.00000138
AC XY:
1
AN XY:
725722
show subpopulations
Gnomad4 AFR exome
AF:
0.0000897
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152210
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.000121
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00000621
Hom.:
10
Bravo
AF:
0.0000491

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
0.039
DANN
Benign
0.80
DEOGEN2
Benign
0.039
T;T
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.064
N
LIST_S2
Benign
0.45
T;.
M_CAP
Benign
0.0041
T
MetaRNN
Benign
0.043
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.52
N;N
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.36
N;N
REVEL
Benign
0.030
Sift
Benign
0.28
T;T
Sift4G
Benign
0.41
T;T
Polyphen
0.020
B;B
Vest4
0.082
MutPred
0.51
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP
0.20
MPC
0.34
ClinPred
0.31
T
GERP RS
-11
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.099
gMVP
0.25

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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.

Other links and lift over

dbSNP: rs35704760; hg19: chr7-100225112; API