rs149765220

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_001079.4(ZAP70):​c.1490C>T​(p.Ser497Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000336 in 1,614,156 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00030 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00034 ( 0 hom. )

Consequence

ZAP70
NM_001079.4 missense

Scores

1
11
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 5.91

Publications

5 publications found
Variant links:
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)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.1777606).
BP6
Variant 2-97737764-C-T is Benign according to our data. Variant chr2-97737764-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 576771.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000302 (46/152310) while in subpopulation AMR AF = 0.000719 (11/15306). AF 95% confidence interval is 0.000402. There are 0 homozygotes in GnomAd4. There are 22 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ZAP70NM_001079.4 linkc.1490C>T p.Ser497Leu missense_variant Exon 12 of 14 ENST00000264972.10 NP_001070.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ZAP70ENST00000264972.10 linkc.1490C>T p.Ser497Leu missense_variant Exon 12 of 14 1 NM_001079.4 ENSP00000264972.5 P43403-1

Frequencies

GnomAD3 genomes
AF:
0.000302
AC:
46
AN:
152192
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000441
Gnomad OTH
AF:
0.00144
GnomAD2 exomes
AF:
0.000223
AC:
56
AN:
251312
AF XY:
0.000177
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.000376
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000334
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000339
AC:
496
AN:
1461846
Hom.:
0
Cov.:
43
AF XY:
0.000300
AC XY:
218
AN XY:
727232
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.000358
AC:
16
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000580
AC:
5
AN:
86258
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000406
AC:
452
AN:
1111984
Other (OTH)
AF:
0.000348
AC:
21
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
38
75
113
150
188
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
22
44
66
88
110
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000302
AC:
46
AN:
152310
Hom.:
0
Cov.:
33
AF XY:
0.000295
AC XY:
22
AN XY:
74474
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41572
American (AMR)
AF:
0.000719
AC:
11
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000441
AC:
30
AN:
68014
Other (OTH)
AF:
0.00142
AC:
3
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000323
Hom.:
0
Bravo
AF:
0.000336
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000148
AC:
18
EpiCase
AF:
0.000436
EpiControl
AF:
0.000356

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Oct 06, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1490C>T (p.S497L) alteration is located in exon 12 (coding exon 10) of the ZAP70 gene. This alteration results from a C to T substitution at nucleotide position 1490, causing the serine (S) at amino acid position 497 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

ZAP70-Related Severe Combined Immunodeficiency Benign:1
Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
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
0.22
BayesDel_addAF
Benign
-0.086
T
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.74
D;.
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.82
T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.18
T;T
MetaSVM
Uncertain
-0.16
T
MutationAssessor
Benign
1.7
L;.
PhyloP100
5.9
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-2.5
N;D
REVEL
Uncertain
0.50
Sift
Uncertain
0.019
D;D
Sift4G
Benign
0.29
T;T
Polyphen
0.81
P;.
Vest4
0.20
MVP
0.82
MPC
1.1
ClinPred
0.10
T
GERP RS
5.2
Varity_R
0.31
gMVP
0.66
Mutation Taster
=40/60
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs149765220; hg19: chr2-98354227; API