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GeneBe

5-35667166-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_024867.4(SPEF2):ā€‹c.1262G>Cā€‹(p.Arg421Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,612,266 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R421H) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

SPEF2
NM_024867.4 missense

Scores

2
6
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.37
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 Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPEF2NM_024867.4 linkuse as main transcriptc.1262G>C p.Arg421Pro missense_variant 9/37 ENST00000356031.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPEF2ENST00000356031.8 linkuse as main transcriptc.1262G>C p.Arg421Pro missense_variant 9/371 NM_024867.4 P2Q9C093-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152180
Hom.:
0
Cov.:
33
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
249766
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
134902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000293
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1460086
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726190
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000449
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152180
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74348
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:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.87
BayesDel_addAF
Benign
-0.020
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
20
DANN
Uncertain
0.99
Eigen
Benign
0.046
Eigen_PC
Benign
-0.044
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.84
T;T;T;T;T
M_CAP
Benign
0.022
T
MetaRNN
Uncertain
0.46
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.8
M;.;.;M;M
MutationTaster
Benign
0.93
D;D;D;D
PrimateAI
Benign
0.31
T
PROVEAN
Pathogenic
-5.3
D;D;.;D;D
REVEL
Benign
0.28
Sift
Uncertain
0.0070
D;D;.;D;D
Sift4G
Uncertain
0.0060
D;D;.;D;D
Polyphen
0.99
D;P;.;P;.
Vest4
0.71
MutPred
0.44
Gain of methylation at K424 (P = 0.0362);Gain of methylation at K424 (P = 0.0362);Gain of methylation at K424 (P = 0.0362);Gain of methylation at K424 (P = 0.0362);Gain of methylation at K424 (P = 0.0362);
MVP
0.50
MPC
0.053
ClinPred
0.90
D
GERP RS
2.0
Varity_R
0.54
gMVP
0.78

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs139580877; hg19: chr5-35667268; API