dbSNP rs13170390: SPEF2:p.Ala934Thr (chr5-35709082-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_024867.4(SPEF2):c.2800G>A(p.Ala934Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,514 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 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. A934P) has been classified as Benign.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SPEF2
NM_024867.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.47

Publications

25 publications found

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]

SPEF2 Gene-Disease associations (from GenCC):

spermatogenic failure 43
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
non-syndromic male infertility due to sperm motility disorder
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SPEF2 links:

ENSG00000248969 (HGNC:):

ENSG00000248969 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03102237).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPEF2	NM_024867.4 link	c.2800G>A	p.Ala934Thr	missense_variant	Exon 19 of 37	ENST00000356031.8	NP_079143.3	Q9C093-1A0A140VKD0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPEF2	ENST00000356031.8 link	c.2800G>A	p.Ala934Thr	missense_variant	Exon 19 of 37	1	NM_024867.4	ENSP00000348314.3		Q9C093-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000402

AC:

AN:

248832

AF XY:

0.00000741

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461514

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727000

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44682

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86106

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53348

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111940

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.87

CADD

Benign

0.017

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.0046

.;T;T;.

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0075

LIST_S2

Benign

0.53

T;T;T;T

M_CAP

Benign

0.0029

MetaRNN

Benign

0.031

T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.34

.;.;N;.

PhyloP100

-2.5

PrimateAI

Benign

0.25

PROVEAN

Benign

-0.54

N;.;N;N

REVEL

Benign

0.013

Sift

Benign

0.73

T;.;T;T

Sift4G

Benign

0.66

T;.;T;T

Polyphen

0.0

B;.;B;B

Vest4

0.019

MutPred

0.075

.;Gain of phosphorylation at A934 (P = 0.069);Gain of phosphorylation at A934 (P = 0.069);.;

MVP

0.048

MPC

0.029

ClinPred

0.041

GERP RS

-2.1

Varity_R

0.028

gMVP

0.15

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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rs13170390

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over