NM_003200.5:c.1948C>A

Variant names:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_003200.5(TCF3):c.1948C>A(p.Pro650Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000187 in 1,613,622 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

TCF3
NM_003200.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 7.34

Variant links:

Genes affected

TCF3 (HGNC:11633): (transcription factor 3) This gene encodes a member of the E protein (class I) family of helix-loop-helix transcription factors. E proteins activate transcription by binding to regulatory E-box sequences on target genes as heterodimers or homodimers, and are inhibited by heterodimerization with inhibitor of DNA-binding (class IV) helix-loop-helix proteins. E proteins play a critical role in lymphopoiesis, and the encoded protein is required for B and T lymphocyte development. Deletion of this gene or diminished activity of the encoded protein may play a role in lymphoid malignancies. This gene is also involved in several chromosomal translocations that are associated with lymphoid malignancies including pre-B-cell acute lymphoblastic leukemia (t(1;19), with PBX1), childhood leukemia (t(19;19), with TFPT) and acute leukemia (t(12;19), with ZNF384). Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and a pseudogene of this gene is located on the short arm of chromosome 9. [provided by RefSeq, Sep 2011]

TCF3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.015075773).

BP6

Variant 19-1611724-G-T is Benign according to our data. Variant chr19-1611724-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 709097.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Likely_benign=2}.

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000125 (19/152238) while in subpopulation EAS AF= 0.00289 (15/5182). AF 95% confidence interval is 0.00178. There are 0 homozygotes in gnomad4. There are 11 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TCF3	NM_003200.5 link	c.1948C>A	p.Pro650Thr	missense_variant	Exon 19 of 19	ENST00000262965.12	NP_003191.1	P15923-1
TCF3	NM_001136139.4 link	c.1939C>A	p.Pro647Thr	missense_variant	Exon 19 of 20	ENST00000588136.7	NP_001129611.1	P15923-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TCF3	ENST00000262965.12 link	c.1948C>A	p.Pro650Thr	missense_variant	Exon 19 of 19	1	NM_003200.5	ENSP00000262965.5		P15923-1
TCF3	ENST00000588136.7 link	c.1939C>A	p.Pro647Thr	missense_variant	Exon 19 of 20	2	NM_001136139.4	ENSP00000468487.1		P15923-2

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00289

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000200

AC:

AN:

250136

Hom.:

AF XY:

0.000162

AC XY:

AN XY:

135464

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00229

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000193

AC:

282

AN:

1461384

Hom.:

Cov.:

AF XY:

0.000197

AC XY:

143

AN XY:

726982

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00569

Gnomad4 SAS exome

AF:

0.000220

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.0000108

Gnomad4 OTH exome

AF:

0.000348

GnomAD4 genome

AF:

0.000125

AC:

AN:

152238

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74438

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00289

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000340

Hom.:

Bravo

AF:

0.000117

ExAC

AF:

0.000206

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Jun 03, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Nov 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Sep 16, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1948C>A (p.P650T) alteration is located in exon 19 (coding exon 18) of the TCF3 gene. This alteration results from a C to A substitution at nucleotide position 1948, causing the proline (P) at amino acid position 650 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Agammaglobulinemia 8, autosomal dominant;C5676958:Agammaglobulinemia 8b, autosomal recessive

Benign:1

Oct 19, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.85

D;T;T;D;T;T;.;.;.

Eigen

Uncertain

0.30

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.92

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

M_CAP

Benign

0.050

MetaRNN

Benign

0.015

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

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.2

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

PrimateAI

Uncertain

0.62

PROVEAN

Pathogenic

-5.1

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

REVEL

Benign

0.24

Sift

Benign

0.059

T;.;.;.;.;.;.;.;D

Sift4G

Uncertain

0.012

D;D;T;D;D;T;T;D;D

Polyphen

1.0

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

Vest4

0.74

MutPred

0.37

.;.;.;.;.;.;.;.;Gain of glycosylation at P654 (P = 0.0215);

MVP

0.61

MPC

0.28

ClinPred

0.23

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.28

gMVP

0.77

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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