11-2403246-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005706.4(TSSC4):c.613C>T(p.Pro205Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000057 in 1,612,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000058 (0 hom.)
• Consequence: TSSC4 NM_005706.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.905

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09844872).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TSSC4	NM_005706.4	c.613C>T	p.Pro205Ser	missense_variant	3/3	ENST00000333256.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TSSC4	ENST00000333256.11	c.613C>T	p.Pro205Ser	missense_variant	3/3	1	NM_005706.4	P2

Frequencies

GnomAD3 genomes AF: 0.0000525 AC: 8 AN: 152238 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000482

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.000827

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000240 AC: 6 AN: 249876 Hom.: 0 AF XY: 0.0000221 AC XY: 3 AN XY: 135488

Gnomad AFR exome AF: 0.0000620

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000328

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000266

Gnomad OTH exome AF: 0.000164

GnomAD4 exome AF: 0.0000575 AC: 84 AN: 1460496 Hom.: 0 Cov.: 30 AF XY: 0.0000399 AC XY: 29 AN XY: 726520

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.0000766

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000675

Gnomad4 OTH exome AF: 0.0000331

GnomAD4 genome AF: 0.0000525 AC: 8 AN: 152356 Hom.: 0 Cov.: 33 AF XY: 0.0000805 AC XY: 6 AN XY: 74508

Gnomad4 AFR AF: 0.0000481

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.000828

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000676 Hom.: 0

Bravo AF: 0.0000302

ExAC AF: 0.0000247 AC: 3

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 28, 2022

The c.613C>T (p.P205S) 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 613, causing the proline (P) at amino acid position 205 to be replaced by a serine (S). 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	0.10
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.52
Cadd	Benign	21
Dann	Uncertain	1.0
Eigen	Benign	-0.0096
Eigen_PC	Benign	-0.0083
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.70	T;.;T;T
M_CAP	Benign	0.023	T
MetaRNN	Benign	0.098	T;T;T;T
MetaSVM	Benign	-0.97	T
MutationTaster	Benign	0.67	D;D;D;D
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-0.010	N;N;N;N
REVEL	Benign	0.058
Sift	Benign	0.36	T;T;T;T
Sift4G	Benign	0.50	T;T;T;T
Polyphen		0.87	P;P;.;P
Vest4		0.099
MutPred		0.29		.;Loss of catalytic residue at P205 (P = 0.0768);.;Loss of catalytic residue at P205 (P = 0.0768);
MVP		0.27
MPC		0.033
ClinPred		0.24	T
GERP RS		2.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.041
gMVP		0.22

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

LitVar

Other links and lift over

dbSNP: rs751794314; hg19: chr11-2424476; COSMIC: COSV50213031; COSMIC: COSV50213031;