10-22386942-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_012443.4(SPAG6):​c.661C>A​(p.Pro221Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000248 in 1,612,908 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

SPAG6
NM_012443.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.02
Variant links:
Genes affected
SPAG6 (HGNC:11215): (sperm associated antigen 6) The correlation of anti-sperm antibodies with cases of unexplained infertility implicates a role for these antibodies in blocking fertilization. Improved diagnosis and treatment of immunologic infertility, as well as identification of proteins for targeted contraception, are dependent on the identification and characterization of relevant sperm antigens. The protein expressed by this gene is recognized by anti-sperm antibodies from an infertile man. This protein localizes to the tail of permeabilized human sperm and contains eight contiguous armadillo repeats, a motif known to mediate protein-protein interactions. Studies in mice suggest that this protein is involved in sperm flagellar motility and maintenance of the structural integrity of mature sperm. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3598739).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPAG6NM_012443.4 linkuse as main transcriptc.661C>A p.Pro221Thr missense_variant 5/11 ENST00000376624.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPAG6ENST00000376624.8 linkuse as main transcriptc.661C>A p.Pro221Thr missense_variant 5/111 NM_012443.4 P1O75602-1
ENST00000422675.1 linkuse as main transcriptn.250+25521C>A intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152136
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
250758
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135508
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:
0.00
Gnomad NFE exome
AF:
0.0000442
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1460772
Hom.:
0
Cov.:
31
AF XY:
0.0000303
AC XY:
22
AN XY:
726726
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:
0.00
Gnomad4 NFE exome
AF:
0.0000297
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152136
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000848
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2

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 09, 2023The c.661C>A (p.P221T) alteration is located in exon 5 (coding exon 5) of the SPAG6 gene. This alteration results from a C to A substitution at nucleotide position 661, causing the proline (P) at amino acid position 221 to be replaced by a threonine (T). 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
0.076
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
18
DANN
Benign
0.43
DEOGEN2
Benign
0.031
T;T;.;.
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.42
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.94
D;D;D;D
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.36
T;T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Uncertain
2.7
.;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-2.0
.;N;N;N
REVEL
Benign
0.15
Sift
Benign
0.29
.;T;T;T
Sift4G
Benign
0.34
T;T;T;T
Polyphen
0.0020
.;B;B;.
Vest4
0.46
MutPred
0.40
.;Loss of ubiquitination at K224 (P = 0.063);Loss of ubiquitination at K224 (P = 0.063);.;
MVP
0.75
MPC
0.27
ClinPred
0.077
T
GERP RS
3.7
Varity_R
0.20
gMVP
0.33

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: rs775287040; hg19: chr10-22675871; API