15-56921080-A-G

Variant summary

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

The NM_207037.2(TCF12):c.130A>G(p.Ser44Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: TCF12 NM_207037.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.25

Genes affected

TCF12 (HGNC:11623): (transcription factor 12) The protein encoded by this gene is a member of the basic helix-loop-helix (bHLH) E-protein family that recognizes the consensus binding site (E-box) CANNTG. This encoded protein is expressed in many tissues, among them skeletal muscle, thymus, B- and T-cells, and may participate in regulating lineage-specific gene expression through the formation of heterodimers with other bHLH E-proteins. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been determined. [provided by RefSeq, Jul 2008]

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=0.17323935).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TCF12	NM_207037.2	c.130A>G	p.Ser44Gly	missense_variant	3/21	ENST00000333725.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TCF12	ENST00000333725.10	c.130A>G	p.Ser44Gly	missense_variant	3/21	1	NM_207037.2	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1457144 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 724874

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 02, 2023

The c.130A>G (p.S44G) alteration is located in exon 3 (coding exon 2) of the TCF12 gene. This alteration results from a A to G substitution at nucleotide position 130, causing the serine (S) at amino acid position 44 to be replaced by a glycine (G). 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	0.083
BayesDel_addAF	Benign	-0.094	T
BayesDel_noAF	Benign	-0.37
Cadd	Benign	22
Dann	Benign	0.88
Eigen	Benign	-0.071
Eigen_PC	Benign	0.10
FATHMM_MKL	Uncertain	0.93	D
M_CAP	Benign	0.0064	T
MetaRNN	Benign	0.17	T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.97	L;L;.;L;L;.
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-0.56	N;N;N;N;N;N
REVEL	Benign	0.077
Sift	Benign	0.80	T;T;T;T;T;T
Sift4G	Benign	0.49	T;T;T;T;T;T
Polyphen		0.0020	B;B;.;B;B;.
Vest4		0.35
MutPred		0.12		Gain of glycosylation at S43 (P = 0.0205);Gain of glycosylation at S43 (P = 0.0205);Gain of glycosylation at S43 (P = 0.0205);Gain of glycosylation at S43 (P = 0.0205);Gain of glycosylation at S43 (P = 0.0205);Gain of glycosylation at S43 (P = 0.0205);
MVP		0.59
MPC		0.52
ClinPred		0.84	D
GERP RS		5.0
Varity_R		0.20
gMVP		0.43

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: rs2059770248; hg19: chr15-57213278;