1-33479694-G-T

Variant summary

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

The NM_001377376.1(ZSCAN20):​c.406G>T​(p.Ala136Ser) 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. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

ZSCAN20
NM_001377376.1 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.585
Variant links:
Genes affected
ZSCAN20 (HGNC:13093): (zinc finger and SCAN domain containing 20) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.051526815).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ZSCAN20NM_001377376.1 linkuse as main transcriptc.406G>T p.Ala136Ser missense_variant 2/8 ENST00000684572.1 NP_001364305.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ZSCAN20ENST00000684572.1 linkuse as main transcriptc.406G>T p.Ala136Ser missense_variant 2/8 NM_001377376.1 ENSP00000507139.1 P17040-1
ZSCAN20ENST00000373413.2 linkuse as main transcriptc.406G>T p.Ala136Ser missense_variant 2/41 ENSP00000362512.1 P17040-4
ZSCAN20ENST00000361328.7 linkuse as main transcriptc.406G>T p.Ala136Ser missense_variant 2/82 ENSP00000355053.3 P17040-1
ZSCAN20ENST00000480917.1 linkuse as main transcriptn.548G>T non_coding_transcript_exon_variant 2/43

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1398950
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
691390
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.:
33

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 GeneticsNov 10, 2021The c.406G>T (p.A136S) alteration is located in exon 2 (coding exon 1) of the ZSCAN20 gene. This alteration results from a G to T substitution at nucleotide position 406, causing the alanine (A) at amino acid position 136 to be replaced by a serine (S). 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
0.12
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
0.95
DANN
Benign
0.66
DEOGEN2
Benign
0.048
T;.
Eigen
Benign
-0.89
Eigen_PC
Benign
-0.82
FATHMM_MKL
Benign
0.049
N
LIST_S2
Benign
0.13
T;T
M_CAP
Benign
0.0055
T
MetaRNN
Benign
0.052
T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.89
L;L
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.54
N;N
REVEL
Benign
0.024
Sift
Benign
0.096
T;T
Sift4G
Benign
0.38
T;T
Polyphen
0.12
B;B
Vest4
0.12
MutPred
0.41
Gain of glycosylation at A136 (P = 0.0073);Gain of glycosylation at A136 (P = 0.0073);
MVP
0.11
MPC
0.20
ClinPred
0.081
T
GERP RS
3.0
Varity_R
0.036
gMVP
0.12

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: chr1-33945295; API