Genetic Variant TCF3:p.His593His (chr19-1615328-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003200.5(TCF3):c.1779C>T(p.His593His) variant causes a synonymous change. The variant allele was found at a frequency of 0.00000137 in 1,458,308 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TCF3
NM_003200.5 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.76

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

autosomal agammaglobulinemia
Inheritance: SD, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
agammaglobulinemia 8, autosomal dominant
Inheritance: AR, AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

TCF3 links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.55).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TCF3	NM_003200.5 link	c.1779C>T	p.His593His	synonymous_variant	Exon 18 of 19	ENST00000262965.12	NP_003191.1
TCF3	NM_001136139.4 link	c.1586+358C>T		intron_variant	Intron 17 of 19	ENST00000588136.7	NP_001129611.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TCF3	ENST00000262965.12 link	c.1779C>T	p.His593His	synonymous_variant	Exon 18 of 19	1	NM_003200.5	ENSP00000262965.5
TCF3	ENST00000588136.7 link	c.1586+358C>T		intron_variant	Intron 17 of 19	2	NM_001136139.4	ENSP00000468487.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1458308

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724722

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33402

American (AMR)

AF:

0.00

AC:

AN:

44638

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26042

East Asian (EAS)

AF:

0.00

AC:

AN:

39552

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86186

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53328

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

9.02e-7

AC:

AN:

1109166

Other (OTH)

AF:

0.00

AC:

AN:

60244

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.55

CADD

Benign

8.4

(source)

DANN

Benign

0.91

PhyloP100

3.8

PromoterAI

0.0047

Neutral

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over