chr9-27284727-C-T

Variant summary

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

The NM_020641.3(EQTN):​c.881G>A​(p.Arg294Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000441 in 1,608,696 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

EQTN
NM_020641.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.390
Variant links:
Genes affected
EQTN (HGNC:1359): (equatorin) Predicted to be involved in acrosomal vesicle exocytosis; endocytosis; and fusion of sperm to egg plasma membrane involved in single fertilization. Predicted to be located in acrosomal membrane; early endosome; and nucleus. Predicted to be active in inner acrosomal membrane; outer acrosomal membrane; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]
REXO6P (HGNC:16506): (long intergenic non-protein coding RNA 32)

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=0.028829902).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EQTNNM_020641.3 linkuse as main transcriptc.881G>A p.Arg294Gln missense_variant 8/8 ENST00000380032.8
EQTNNM_001161585.2 linkuse as main transcriptc.794G>A p.Arg265Gln missense_variant 7/7
EQTNXM_011517920.2 linkuse as main transcriptc.473G>A p.Arg158Gln missense_variant 5/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EQTNENST00000380032.8 linkuse as main transcriptc.881G>A p.Arg294Gln missense_variant 8/81 NM_020641.3 P1Q9NQ60-1
EQTNENST00000537675.5 linkuse as main transcriptc.794G>A p.Arg265Gln missense_variant 7/71 Q9NQ60-3
REXO6PENST00000640247.1 linkuse as main transcriptn.143G>A non_coding_transcript_exon_variant 1/45

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000472
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000645
AC:
16
AN:
248142
Hom.:
0
AF XY:
0.0000747
AC XY:
10
AN XY:
133900
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000326
Gnomad NFE exome
AF:
0.0000798
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000378
AC:
55
AN:
1456562
Hom.:
0
Cov.:
33
AF XY:
0.0000373
AC XY:
27
AN XY:
723910
show subpopulations
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:
0.000207
Gnomad4 NFE exome
AF:
0.0000379
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152134
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000472
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000226
Hom.:
0
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000824
AC:
10
EpiCase
AF:
0.0000546
EpiControl
AF:
0.0000594

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 GeneticsApr 15, 2024The c.881G>A (p.R294Q) alteration is located in exon 8 (coding exon 8) of the EQTN gene. This alteration results from a G to A substitution at nucleotide position 881, causing the arginine (R) at amino acid position 294 to be replaced by a glutamine (Q). 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
0.11
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
7.5
DANN
Benign
0.97
DEOGEN2
Benign
0.00062
T;.
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.0024
N
LIST_S2
Benign
0.47
T;T
M_CAP
Benign
0.0031
T
MetaRNN
Benign
0.029
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.31
T
PROVEAN
Benign
0.55
N;N
REVEL
Benign
0.0030
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.0020
B;.
Vest4
0.061
MVP
0.014
MPC
0.0098
ClinPred
0.050
T
GERP RS
-3.0
Varity_R
0.038
gMVP
0.028

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs368040874; hg19: chr9-27284725; API