rs201730485

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_024867.4(SPEF2):ā€‹c.2390A>Gā€‹(p.Asp797Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000782 in 1,613,526 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.00045 ( 0 hom., cov: 33)
Exomes š‘“: 0.00082 ( 2 hom. )

Consequence

SPEF2
NM_024867.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.520
Variant links:
Genes affected
SPEF2 (HGNC:26293): (sperm flagellar 2) Involved in sperm axoneme assembly. Located in sperm flagellum. Implicated in spermatogenic failure 43. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008966774).
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000453 (69/152374) while in subpopulation NFE AF= 0.000882 (60/68034). AF 95% confidence interval is 0.000703. There are 0 homozygotes in gnomad4. There are 28 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPEF2NM_024867.4 linkuse as main transcriptc.2390A>G p.Asp797Gly missense_variant 16/37 ENST00000356031.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPEF2ENST00000356031.8 linkuse as main transcriptc.2390A>G p.Asp797Gly missense_variant 16/371 NM_024867.4 P2Q9C093-1
ENST00000510433.1 linkuse as main transcriptn.174-2709T>C intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
AF:
0.000453
AC:
69
AN:
152256
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000828
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000882
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000442
AC:
110
AN:
248654
Hom.:
1
AF XY:
0.000526
AC XY:
71
AN XY:
134942
show subpopulations
Gnomad AFR exome
AF:
0.000323
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000586
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000816
AC:
1192
AN:
1461152
Hom.:
2
Cov.:
34
AF XY:
0.000810
AC XY:
589
AN XY:
726810
show subpopulations
Gnomad4 AFR exome
AF:
0.000209
Gnomad4 AMR exome
AF:
0.000201
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00102
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000941
Gnomad4 OTH exome
AF:
0.000646
GnomAD4 genome
AF:
0.000453
AC:
69
AN:
152374
Hom.:
0
Cov.:
33
AF XY:
0.000376
AC XY:
28
AN XY:
74524
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000829
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000882
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000690
Hom.:
1
Bravo
AF:
0.000461
TwinsUK
AF:
0.00162
AC:
6
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.000272
AC:
1
ESP6500EA
AF:
0.00123
AC:
10
ExAC
AF:
0.000472
AC:
57
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000545
EpiControl
AF:
0.00107

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 testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMar 29, 2016Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Candidate PCD gene, but no second suspicious variant and no information on this variant -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
13
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0029
.;T;T;.
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.86
FATHMM_MKL
Benign
0.099
N
LIST_S2
Benign
0.67
T;T;T;T
M_CAP
Benign
0.0061
T
MetaRNN
Benign
0.0090
T;T;T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
1.8
.;.;L;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
0.65
N;.;N;N
REVEL
Benign
0.077
Sift
Benign
0.66
T;.;T;T
Sift4G
Benign
0.68
T;.;T;T
Polyphen
0.0030
B;.;B;B
Vest4
0.12
MVP
0.19
MPC
0.034
ClinPred
0.015
T
GERP RS
3.7
Varity_R
0.094
gMVP
0.36

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs201730485; hg19: chr5-35700846; API