rs764448315

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_003114.5(SPAG1):​c.133G>A​(p.Val45Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000033 in 1,577,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

SPAG1
NM_003114.5 missense

Scores

2
10
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.85

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.31059417).

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SPAG1
NM_003114.5
MANE Select
c.133G>Ap.Val45Met
missense
Exon 2 of 19NP_003105.2
SPAG1
NM_001374321.1
c.133G>Ap.Val45Met
missense
Exon 2 of 19NP_001361250.1Q07617-1
SPAG1
NM_172218.3
c.133G>Ap.Val45Met
missense
Exon 2 of 19NP_757367.1Q07617-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SPAG1
ENST00000388798.7
TSL:1 MANE Select
c.133G>Ap.Val45Met
missense
Exon 2 of 19ENSP00000373450.3Q07617-1
SPAG1
ENST00000251809.4
TSL:5
c.133G>Ap.Val45Met
missense
Exon 2 of 19ENSP00000251809.3Q07617-1
SPAG1
ENST00000964470.1
c.133G>Ap.Val45Met
missense
Exon 2 of 19ENSP00000634529.1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152116
Hom.:
0
Cov.:
33
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000279
AC:
6
AN:
214750
AF XY:
0.0000429
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000199
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000330
AC:
47
AN:
1425496
Hom.:
0
Cov.:
28
AF XY:
0.0000395
AC XY:
28
AN XY:
708682
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31312
American (AMR)
AF:
0.00
AC:
0
AN:
34328
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24780
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39100
South Asian (SAS)
AF:
0.000150
AC:
12
AN:
79774
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52876
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5370
European-Non Finnish (NFE)
AF:
0.0000300
AC:
33
AN:
1099076
Other (OTH)
AF:
0.0000340
AC:
2
AN:
58880
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000329
AC:
5
AN:
152116
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74296
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41426
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
67998
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000108
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000330
AC:
4

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Primary ciliary dyskinesia (1)
-
1
-
Primary ciliary dyskinesia 28 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.46
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.094
T
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.66
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.31
T
MetaSVM
Uncertain
-0.22
T
MutationAssessor
Uncertain
2.1
M
PhyloP100
2.9
PrimateAI
Uncertain
0.61
T
PROVEAN
Uncertain
-2.6
D
REVEL
Benign
0.24
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.0050
D
Polyphen
1.0
D
Vest4
0.52
MutPred
0.26
Gain of catalytic residue at V45 (P = 0.0626)
MVP
0.84
MPC
0.63
ClinPred
0.67
D
GERP RS
4.0
Varity_R
0.12
gMVP
0.61
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs764448315; hg19: chr8-101174641; COSMIC: COSV52561709; COSMIC: COSV52561709; API