10-22389265-G-A

Position:

• chr10-22389265-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_012443.4(SPAG6):​c.958G>A​(p.Val320Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,508 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: SPAG6 NM_012443.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.05

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]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09668377).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SPAG6	NM_012443.4	c.958G>A	p.Val320Ile	missense_variant	7/11	ENST00000376624.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPAG6	ENST00000376624.8	c.958G>A	p.Val320Ile	missense_variant	7/11	1	NM_012443.4	P1
	ENST00000422675.1	n.251-23584G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460508 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726590

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.082
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.47
CADD	Benign	11
DANN	Benign	0.68
DEOGEN2	Benign	0.024	T;T;.;.
Eigen	Benign	-0.99
Eigen_PC	Benign	-0.83
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.80	T;T;T;T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.097	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Benign	0.41	T
REVEL	Benign	0.096
Sift4G	Benign	1.0	T;T;T;T
Polyphen		0.0, 0.0010	.;B;B;.
Vest4		0.10
MutPred		0.50		.;Loss of helix (P = 0.1706);Loss of helix (P = 0.1706);.;
MVP		0.38
MPC		0.19
ClinPred		0.11	T
GERP RS		2.9
Varity_R		0.029
gMVP		0.20

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

Other links and lift over

dbSNP: rs1371609495; hg19: chr10-22678194;