chr10-22389236-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_012443.4(SPAG6):​c.929G>T​(p.Arg310Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,972 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R310W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SPAG6
NM_012443.4 missense

Scores

4
7
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.36
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.823

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPAG6NM_012443.4 linkuse as main transcriptc.929G>T p.Arg310Leu missense_variant 7/11 ENST00000376624.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPAG6ENST00000376624.8 linkuse as main transcriptc.929G>T p.Arg310Leu missense_variant 7/111 NM_012443.4 P1O75602-1
ENST00000422675.1 linkuse as main transcriptn.251-23613G>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251004
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135662
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460972
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726780
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

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 GeneticsFeb 17, 2024The c.929G>T (p.R310L) alteration is located in exon 7 (coding exon 7) of the SPAG6 gene. This alteration results from a G to T substitution at nucleotide position 929, causing the arginine (R) at amino acid position 310 to be replaced by a leucine (L). 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
0.31
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.24
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;D;.;.
Eigen
Benign
0.017
Eigen_PC
Benign
0.063
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D;D;D;D
M_CAP
Benign
0.055
D
MetaRNN
Pathogenic
0.82
D;D;D;D
MetaSVM
Benign
-0.51
T
MutationAssessor
Uncertain
2.6
.;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Benign
0.36
T
PROVEAN
Pathogenic
-5.4
.;D;D;D
REVEL
Uncertain
0.58
Sift
Uncertain
0.019
.;D;D;D
Sift4G
Uncertain
0.052
T;D;D;D
Polyphen
0.21, 0.38
.;B;B;.
Vest4
0.85
MutPred
0.62
.;Loss of methylation at K306 (P = 0.1263);Loss of methylation at K306 (P = 0.1263);.;
MVP
0.87
MPC
0.32
ClinPred
0.97
D
GERP RS
3.7
Varity_R
0.56
gMVP
0.72

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: rs573352808; hg19: chr10-22678165; COSMIC: COSV57624523; COSMIC: COSV57624523; API