Genetic Variant NM_001127208.3:c.4817G>A (chr4-105275327-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001127208.3(TET2):c.4817G>A(p.Gly1606Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000322 in 1,551,698 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G1606A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

TET2
NM_001127208.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.16

Publications

3 publications found

Variant links:

Genes affected

TET2 (HGNC:25941): (tet methylcytosine dioxygenase 2) The protein encoded by this gene is a methylcytosine dioxygenase that catalyzes the conversion of methylcytosine to 5-hydroxymethylcytosine. The encoded protein is involved in myelopoiesis, and defects in this gene have been associated with several myeloproliferative disorders. Two variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2011]

TET2 links:

TET2-AS1 (HGNC:41125): (TET2 antisense RNA 1)

TET2-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001127208.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TET2	NM_001127208.3	MANE Select	c.4817G>A	p.Gly1606Asp	missense	Exon 11 of 11	NP_001120680.1
	TET2-AS1	NR_126420.1		n.318+59059C>T		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TET2	ENST00000380013.9	TSL:5 MANE Select	c.4817G>A	p.Gly1606Asp	missense	Exon 11 of 11	ENSP00000369351.4
TET2	ENST00000513237.5	TSL:1	c.4880G>A	p.Gly1627Asp	missense	Exon 11 of 11	ENSP00000425443.1
TET2	ENST00000540549.5	TSL:1	c.4817G>A	p.Gly1606Asp	missense	Exon 11 of 11	ENSP00000442788.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152128

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000286

AC:

AN:

1399570

Hom.:

Cov.:

AF XY:

0.00000435

AC XY:

AN XY:

690274

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31600

American (AMR)

AF:

0.00

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35738

South Asian (SAS)

AF:

0.00

AC:

AN:

79236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49342

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.00000371

AC:

AN:

1079000

Other (OTH)

AF:

0.00

AC:

AN:

58070

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152128

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74320

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41420

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68008

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.097

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.087

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.78

M_CAP

Benign

0.048

MetaRNN

Uncertain

0.47

MetaSVM

Benign

-0.94

MutationAssessor

Uncertain

2.3

PhyloP100

3.2

PrimateAI

Benign

0.33

PROVEAN

Benign

-2.2

REVEL

Benign

0.12

Sift

Uncertain

0.0040

Sift4G

Benign

0.80

Polyphen

1.0

Vest4

0.49

MutPred

0.16

Loss of catalytic residue at A1626 (P = 0.035)

MVP

0.52

MPC

0.43

ClinPred

0.90

GERP RS

3.4

Varity_R

0.22

gMVP

0.62

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over