Genetic Variant TSSC4:p.Thr19Met (chr11-2402689-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005706.4(TSSC4):c.56C>T(p.Thr19Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000372 in 1,587,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

TSSC4
NM_005706.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.423

Publications

0 publications found

Variant links:

Genes affected

TSSC4 (HGNC:12386): (tumor suppressing subtransferable candidate 4) This gene is one of several tumor-suppressing subtransferable fragments located in the imprinted gene domain of 11p15.5, an important tumor-suppressor gene region. Alterations in this region have been associated with the Beckwith-Wiedemann syndrome, Wilms tumor, rhabdomyosarcoma, adrenocortical carcinoma, and lung, ovarian, and breast cancer. This gene is located among several imprinted genes; however, this gene, as well as the pan-hematopoietic expression gene (PHEMX), escapes imprinting. This gene may play a role in malignancies and disease that involve this region. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jul 2014]

TSSC4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10989696).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSSC4	NM_005706.4 link	c.56C>T	p.Thr19Met	missense_variant	Exon 3 of 3	ENST00000333256.11	NP_005697.2	Q9Y5U2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TSSC4	ENST00000333256.11 link	c.56C>T	p.Thr19Met	missense_variant	Exon 3 of 3	1	NM_005706.4	ENSP00000331087.6		Q9Y5U2-1

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.000478

GnomAD2 exomes

AF:

0.0000444

AC:

AN:

202498

AF XY:

0.0000459

show subpopulations

Gnomad AFR exome

AF:

0.000163

Gnomad AMR exome

AF:

0.000137

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000341

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000286

AC:

AN:

1435014

Hom.:

Cov.:

AF XY:

0.0000295

AC XY:

AN XY:

711252

show subpopulations

African (AFR)

AF:

0.000393

AC:

AN:

33102

American (AMR)

AF:

0.000148

AC:

AN:

40504

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25564

East Asian (EAS)

AF:

0.00

AC:

AN:

38650

South Asian (SAS)

AF:

0.0000242

AC:

AN:

82538

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50406

Middle Eastern (MID)

AF:

0.000175

AC:

AN:

5722

European-Non Finnish (NFE)

AF:

0.0000164

AC:

AN:

1099090

Other (OTH)

AF:

0.0000168

AC:

AN:

59438

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000118

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.000290

AC:

AN:

41434

American (AMR)

AF:

0.0000655

AC:

AN:

15278

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:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68022

Other (OTH)

AF:

0.000478

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.522

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000226

Hom.:

Bravo

AF:

0.000132

ESP6500AA

AF:

0.000687

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000416

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 18, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.56C>T (p.T19M) alteration is located in exon 2 (coding exon 1) of the TSSC4 gene. This alteration results from a C to T substitution at nucleotide position 56, causing the threonine (T) at amino acid position 19 to be replaced by a methionine (M). 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

Benign

0.088

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.017

T;T;T;T;.;T

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.47

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.61

.;T;T;T;T;T

M_CAP

Benign

0.034

MetaRNN

Benign

0.11

T;T;T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

2.0

M;.;.;.;.;M

PhyloP100

0.42

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-1.3

N;N;D;D;N;N

REVEL

Benign

0.048

Sift

Uncertain

0.0080

D;D;D;D;D;D

Sift4G

Uncertain

0.048

D;D;D;D;D;D

Polyphen

1.0

D;.;.;.;.;D

Vest4

0.30

MVP

0.16

MPC

0.11

ClinPred

0.11

GERP RS

2.4

PromoterAI

0.0017

Neutral

(source)

Varity_R

0.019

gMVP

0.089

Mutation Taster

=92/8

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

chr11-2402689-C-T

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