chr7-100734218-T-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003386.3(ZAN):​c.50T>A​(p.Phe17Tyr) variant causes a missense 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. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 25)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

ZAN
NM_003386.3 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.330
Variant links:
Genes affected
ZAN (HGNC:12857): (zonadhesin) This gene encodes a protein that functions in the species specificity of sperm adhesion to the egg zona pellucida. The encoded protein is located in the acrosome and may be involved in signaling or gamete recognition. An allelic polymorphism in this gene results in both functional and frameshifted alleles; the reference genome represents the functional allele. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jul 2015]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.058844507).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ZANNM_003386.3 linkuse as main transcriptc.50T>A p.Phe17Tyr missense_variant 2/48 ENST00000613979.5 NP_003377.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ZANENST00000613979.5 linkuse as main transcriptc.50T>A p.Phe17Tyr missense_variant 2/481 NM_003386.3 ENSP00000480750 P1Q9Y493-1

Frequencies

GnomAD3 genomes
Cov.:
25
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1308862
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
646270
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.:
25

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 05, 2023The c.50T>A (p.F17Y) alteration is located in exon 2 (coding exon 1) of the ZAN gene. This alteration results from a T to A substitution at nucleotide position 50, causing the phenylalanine (F) at amino acid position 17 to be replaced by a tyrosine (Y). 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
0.15
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
0.95
DANN
Benign
0.94
DEOGEN2
Benign
0.019
T;.;T;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.052
N
LIST_S2
Benign
0.24
.;.;T;T
M_CAP
Benign
0.00095
T
MetaRNN
Benign
0.059
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;N;N;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-0.17
.;.;.;N
REVEL
Benign
0.045
Sift4G
Benign
0.094
T;T;T;T
Polyphen
0.038
B;.;B;.
Vest4
0.099
MutPred
0.33
Gain of methylation at K21 (P = 0.0596);Gain of methylation at K21 (P = 0.0596);Gain of methylation at K21 (P = 0.0596);Gain of methylation at K21 (P = 0.0596);
MVP
0.085
MPC
0.086
ClinPred
0.13
T
GERP RS
-4.5
Varity_R
0.049
gMVP
0.17

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-100331841; API