ENST00000463643.5:n.2010G>A

Variant names:

• chr2-97739787-G-A
• rs2278699
• ENST00000463643.5:n.2010G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000463643.5(ZAP70):​n.2010G>A variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ZAP70 ENST00000463643.5 non_coding_transcript_exon
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.349
• Publications: 10 publications found

Genes affected

ZAP70 (HGNC:12858): (zeta chain of T cell receptor associated protein kinase 70) This gene encodes an enzyme belonging to the protein tyrosine kinase family, and it plays a role in T-cell development and lymphocyte activation. This enzyme, which is phosphorylated on tyrosine residues upon T-cell antigen receptor (TCR) stimulation, functions in the initial step of TCR-mediated signal transduction in combination with the Src family kinases, Lck and Fyn. This enzyme is also essential for thymocyte development. Mutations in this gene cause selective T-cell defect, a severe combined immunodeficiency disease characterized by a selective absence of CD8-positive T-cells. Two transcript variants that encode different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ZAP70 Gene-Disease associations (from GenCC):

• combined immunodeficiency due to ZAP70 deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

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=-0.83).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZAP70	NM_001079.4	c.*289G>A		3_prime_UTR_variant	Exon 14 of 14	ENST00000264972.10	NP_001070.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZAP70	ENST00000264972.10	c.*289G>A		3_prime_UTR_variant	Exon 14 of 14	1	NM_001079.4	ENSP00000264972.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 319276 Hom.: 0 Cov.: 3 AF XY: 0.00 AC XY: 0 AN XY: 165424

African (AFR) AF: 0.00 AC: 0 AN: 9810

American (AMR) AF: 0.00 AC: 0 AN: 12324

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 10582

East Asian (EAS) AF: 0.00 AC: 0 AN: 22432

South Asian (SAS) AF: 0.00 AC: 0 AN: 28348

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 21638

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 1492

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 193064

Other (OTH) AF: 0.00 AC: 0 AN: 19586

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	1.2
DANN	Benign	0.78
PhyloP100		-0.35

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

Other links and lift over

dbSNP: rs2278699; hg19: chr2-98356250;