Genetic Variant TPD52L2:p.Arg64Cys (chr20-63873692-C-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_003288.4(TPD52L2):c.190C>T(p.Arg64Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000261 in 1,457,424 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

TPD52L2
NM_003288.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.95

Variant links:

Genes affected

TPD52L2 (HGNC:12007): (TPD52 like 2) This gene encodes a member of the tumor protein D52-like family. These proteins are characterized by an N-terminal coiled-coil motif that is used to form homo- and heteromeric complexes with other tumor protein D52-like proteins. Expression of this gene may be a marker for breast cancer and acute lymphoblastic leukemia. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 12. [provided by RefSeq, Aug 2011]

TPD52L2 links:

ENSG00000290226 (HGNC:):

ENSG00000290226 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.861

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TPD52L2	NM_003288.4 link	c.190C>T	p.Arg64Cys	missense_variant	Exon 3 of 7	ENST00000346249.9	NP_003279.2	O43399-1Q6FGS1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TPD52L2	ENST00000346249.9 link	c.190C>T	p.Arg64Cys	missense_variant	Exon 3 of 7	1	NM_003288.4	ENSP00000343547.4		O43399-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000366

AC:

AN:

246064

Hom.:

AF XY:

0.0000450

AC XY:

AN XY:

133356

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000804

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000261

AC:

AN:

1457424

Hom.:

Cov.:

AF XY:

0.0000317

AC XY:

AN XY:

725172

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000270

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.190C>T (p.R64C) alteration is located in exon 3 (coding exon 3) of the TPD52L2 gene. This alteration results from a C to T substitution at nucleotide position 190, causing the arginine (R) at amino acid position 64 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.36

BayesDel_addAF

Benign

-0.052

BayesDel_noAF

Benign

-0.12

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.44

T;T;.;T;.;.;.;.;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.80

T;T;T;T;T;T;T;T;T

M_CAP

Uncertain

0.20

MetaRNN

Pathogenic

0.86

D;D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.86

MutationAssessor

Pathogenic

3.5

.;.;.;M;M;M;M;M;M

PrimateAI

Uncertain

0.71

PROVEAN

Pathogenic

-5.7

.;.;D;D;D;D;D;D;D

REVEL

Uncertain

0.43

Sift

Pathogenic

0.0

.;.;D;D;D;D;D;D;D

Sift4G

Uncertain

0.0020

D;D;D;D;D;D;D;D;D

Polyphen

1.0, 1.0

.;.;.;D;.;.;D;.;D

Vest4

0.85

MutPred

0.69

Loss of MoRF binding (P = 0.0102);Loss of MoRF binding (P = 0.0102);.;Loss of MoRF binding (P = 0.0102);Loss of MoRF binding (P = 0.0102);Loss of MoRF binding (P = 0.0102);Loss of MoRF binding (P = 0.0102);Loss of MoRF binding (P = 0.0102);Loss of MoRF binding (P = 0.0102);

MVP

0.28

MPC

0.74

ClinPred

0.98

GERP RS

3.8

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.8

Varity_R

0.71

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over