rs371427575

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_003114.5(SPAG1):c.301-8A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000316 in 1,448,478 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00033 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00031 ( 0 hom. )

Consequence

SPAG1
NM_003114.5 splice_region, intron

Scores

Splicing: ADA: 0.0003615

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0150

Publications

0 publications found

Variant links:

Genes affected

SPAG1 (HGNC:11212): (sperm associated antigen 1) 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 agglutinating antibodies from an infertile woman. Furthermore, immunization of female rats with the recombinant human protein reduced fertility. This protein localizes to the plasma membrane of germ cells in the testis and to the post-acrosomal plasma membrane of mature spermatozoa. Recombinant polypeptide binds GTP and exhibits GTPase activity. Thus, this protein may regulate GTP signal transduction pathways involved in spermatogenesis and fertilization. Two transcript variants of this gene encode the same protein. [provided by RefSeq, Jul 2008]

SPAG1 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 28
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia, ClinGen
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

SPAG1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.75).

BP6

Variant 8-100177808-A-G is Benign according to our data. Variant chr8-100177808-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 416527.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000315 (408/1296174) while in subpopulation MID AF = 0.00184 (10/5430). AF 95% confidence interval is 0.000999. There are 0 homozygotes in GnomAdExome4. There are 188 alleles in the male GnomAdExome4 subpopulation. Median coverage is 21. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003114.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
SPAG1	NM_003114.5	MANE Select	c.301-8A>G	splice_region intron	N/A	NP_003105.2
SPAG1	NM_001374321.1		c.301-8A>G	splice_region intron	N/A	NP_001361250.1	Q07617-1
SPAG1	NM_172218.3		c.301-8A>G	splice_region intron	N/A	NP_757367.1	Q07617-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
SPAG1	ENST00000388798.7	TSL:1 MANE Select	c.301-8A>G	splice_region intron	N/A	ENSP00000373450.3	Q07617-1
SPAG1	ENST00000251809.4	TSL:5	c.301-8A>G	splice_region intron	N/A	ENSP00000251809.3	Q07617-1
SPAG1	ENST00000964470.1		c.301-8A>G	splice_region intron	N/A	ENSP00000634529.1

Frequencies

GnomAD3 genomes

AF:

0.000335

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.000577

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000382

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000388

AC:

AN:

219056

AF XY:

0.000363

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000661

Gnomad ASJ exome

AF:

0.000970

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000569

Gnomad OTH exome

AF:

0.000182

GnomAD4 exome

AF:

0.000315

AC:

408

AN:

1296174

Hom.:

Cov.:

AF XY:

0.000289

AC XY:

188

AN XY:

650476

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29936

American (AMR)

AF:

0.000646

AC:

AN:

40234

Ashkenazi Jewish (ASJ)

AF:

0.00166

AC:

AN:

24634

East Asian (EAS)

AF:

0.0000257

AC:

AN:

38836

South Asian (SAS)

AF:

0.0000371

AC:

AN:

80784

European-Finnish (FIN)

AF:

0.0000381

AC:

AN:

52536

Middle Eastern (MID)

AF:

0.00184

AC:

AN:

5430

European-Non Finnish (NFE)

AF:

0.000315

AC:

305

AN:

969080

Other (OTH)

AF:

0.000366

AC:

AN:

54704

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

102

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000328

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.0000962

AC:

AN:

41574

American (AMR)

AF:

0.00105

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.000577

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.0000943

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000382

AC:

AN:

68032

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.531

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000459

Hom.:

Bravo

AF:

0.000393

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Primary ciliary dyskinesia 28 (1)

VPS13B-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.75

CADD

Benign

8.4

(source)

DANN

Benign

0.67

PhyloP100

0.015

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00036

dbscSNV1_RF

Benign

0.0080

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over