chr8-100194256-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_003114.5(SPAG1):c.1084G>A(p.Gly362Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000529 in 1,607,300 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. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

SPAG1
NM_003114.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.665

Publications

1 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), ClinGen, PanelApp Australia, G2P
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

SPAG1 links:

ENSG00000302563 (HGNC:):

ENSG00000302563 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.02872166).

BP6

Variant 8-100194256-G-A is Benign according to our data. Variant chr8-100194256-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 573113.

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	HGVSp	Effect	Exon Rank	Protein
SPAG1	NM_003114.5	MANE Select	c.1084G>A	p.Gly362Ser	missense	Exon 10 of 19	NP_003105.2
SPAG1	NM_001374321.1		c.1084G>A	p.Gly362Ser	missense	Exon 10 of 19	NP_001361250.1
SPAG1	NM_172218.3		c.1084G>A	p.Gly362Ser	missense	Exon 10 of 19	NP_757367.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SPAG1	ENST00000388798.7	TSL:1 MANE Select	c.1084G>A	p.Gly362Ser	missense	Exon 10 of 19	ENSP00000373450.3
SPAG1	ENST00000251809.4	TSL:5	c.1084G>A	p.Gly362Ser	missense	Exon 10 of 19	ENSP00000251809.3
SPAG1	ENST00000964470.1		c.1084G>A	p.Gly362Ser	missense	Exon 10 of 19	ENSP00000634529.1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152112

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000482

AC:

AN:

248754

AF XY:

0.0000446

show subpopulations

Gnomad AFR exome

AF:

0.0000624

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:

0.0000893

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000529

AC:

AN:

1455188

Hom.:

Cov.:

AF XY:

0.0000483

AC XY:

AN XY:

724214

show subpopulations

African (AFR)

AF:

0.0000899

AC:

AN:

33366

American (AMR)

AF:

0.00

AC:

AN:

44630

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26088

East Asian (EAS)

AF:

0.0000253

AC:

AN:

39568

South Asian (SAS)

AF:

0.0000233

AC:

AN:

85870

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53366

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.0000633

AC:

AN:

1106408

Other (OTH)

AF:

0.0000166

AC:

AN:

60144

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

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:

0.0000526

AC:

AN:

152112

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74308

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41418

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

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:

0.000115

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.0000494

AC:

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Primary ciliary dyskinesia (1)

Primary ciliary dyskinesia 28 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.55

CADD

Benign

3.3

(source)

DANN

Benign

0.53

DEOGEN2

Benign

0.0087

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.019

LIST_S2

Benign

0.54

M_CAP

Benign

0.0087

MetaRNN

Benign

0.029

MetaSVM

Benign

-0.97

MutationAssessor

Benign

-1.8

PhyloP100

0.67

PrimateAI

Benign

0.45

PROVEAN

Benign

1.4

REVEL

Benign

0.016

Sift

Benign

0.71

Sift4G

Benign

0.59

Polyphen

0.0

Vest4

0.053

MVP

0.30

MPC

0.15

ClinPred

0.027

GERP RS

3.0

Varity_R

0.031

gMVP

0.11

Mutation Taster

=94/6

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

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