7-100641127-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_003227.4(TFR2):c.135G>A(p.Ala45Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000795 in 1,568,438 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0043 ( 5 hom., cov: 31)

Exomes 𝑓: 0.00042 ( 6 hom. )

Consequence

TFR2
NM_003227.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -2.25

Publications

0 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: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, G2P

TFR2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.57).

BP6

Variant 7-100641127-C-T is Benign according to our data. Variant chr7-100641127-C-T is described in ClinVar as Benign. ClinVar VariationId is 215505.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.26 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00433 (659/152230) while in subpopulation AFR AF = 0.0153 (634/41534). AF 95% confidence interval is 0.0143. There are 5 homozygotes in GnomAd4. There are 321 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TFR2	NM_003227.4 link	c.135G>A	p.Ala45Ala	synonymous_variant	Exon 2 of 18	ENST00000223051.8	NP_003218.2	Q9UP52-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TFR2	ENST00000223051.8 link	c.135G>A	p.Ala45Ala	synonymous_variant	Exon 2 of 18	1	NM_003227.4	ENSP00000223051.3		Q9UP52-1

Frequencies

GnomAD3 genomes

AF:

0.00431

AC:

655

AN:

152112

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0152

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000918

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:

0.00335

GnomAD2 exomes

AF:

0.00115

AC:

216

AN:

187782

AF XY:

0.000803

show subpopulations

Gnomad AFR exome

AF:

0.0159

Gnomad AMR exome

AF:

0.000540

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000607

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000415

AC:

588

AN:

1416208

Hom.:

Cov.:

AF XY:

0.000357

AC XY:

250

AN XY:

700298

show subpopulations

African (AFR)

AF:

0.0156

AC:

504

AN:

32286

American (AMR)

AF:

0.000644

AC:

AN:

37296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24056

East Asian (EAS)

AF:

0.0000521

AC:

AN:

38356

South Asian (SAS)

AF:

0.0000124

AC:

AN:

80340

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50942

Middle Eastern (MID)

AF:

0.000356

AC:

AN:

5612

European-Non Finnish (NFE)

AF:

0.0000101

AC:

AN:

1088942

Other (OTH)

AF:

0.000754

AC:

AN:

58378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

109

145

181

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00433

AC:

659

AN:

152230

Hom.:

Cov.:

AF XY:

0.00431

AC XY:

321

AN XY:

74420

show subpopulations

African (AFR)

AF:

0.0153

AC:

634

AN:

41534

American (AMR)

AF:

0.000917

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68004

Other (OTH)

AF:

0.00332

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

127

159

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.00284

Hom.:

Bravo

AF:

0.00488

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hemochromatosis type 3

Benign:1

Sep 16, 2020

Natera, Inc.

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Hereditary hemochromatosis

Benign:1

Dec 23, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.57

CADD

Benign

4.7

(source)

DANN

Benign

0.87

PhyloP100

-2.3

PromoterAI

-0.15

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over