16-89669442-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001271907.2(SPATA33):​c.368G>A​(p.Arg123Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000279 in 1,613,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

SPATA33
NM_001271907.2 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.61
Variant links:
Genes affected
SPATA33 (HGNC:26463): (spermatogenesis associated 33) Predicted to act upstream of or within cellular protein localization; fertilization; and flagellated sperm motility. Predicted to be located in sperm mitochondrial sheath. Predicted to be active in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.013446599).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPATA33NM_001271907.2 linkuse as main transcriptc.368G>A p.Arg123Gln missense_variant 3/3 ENST00000579310.6 NP_001258836.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPATA33ENST00000579310.6 linkuse as main transcriptc.368G>A p.Arg123Gln missense_variant 3/32 NM_001271907.2 ENSP00000462996 P2Q96N06-2

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000557
AC:
14
AN:
251410
Hom.:
0
AF XY:
0.0000515
AC XY:
7
AN XY:
135898
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000435
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461604
Hom.:
0
Cov.:
31
AF XY:
0.0000303
AC XY:
22
AN XY:
727084
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000403
Gnomad4 SAS exome
AF:
0.000104
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000989
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000659
AC:
8
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

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 GeneticsJan 31, 2023The c.365G>A (p.R122Q) alteration is located in exon 3 (coding exon 3) of the SPATA33 gene. This alteration results from a G to A substitution at nucleotide position 365, causing the arginine (R) at amino acid position 122 to be replaced by a glutamine (Q). 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
0.082
BayesDel_addAF
Benign
-0.55
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
0.35
DANN
Benign
0.52
DEOGEN2
Benign
0.0018
T;.;.;T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.0031
N
LIST_S2
Benign
0.27
T;T;T;T
M_CAP
Benign
0.0048
T
MetaRNN
Benign
0.013
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.55
N;.;.;.
MutationTaster
Benign
1.0
N;N
PROVEAN
Benign
0.040
N;.;.;.
REVEL
Benign
0.013
Sift
Benign
0.29
T;.;.;.
Sift4G
Benign
0.30
T;T;T;T
Polyphen
0.18
B;.;.;.
Vest4
0.067
MutPred
0.15
Loss of catalytic residue at R122 (P = 0.0168);.;.;.;
MVP
0.081
MPC
0.0091
ClinPred
0.15
T
GERP RS
-6.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.022
gMVP
0.038

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: rs574253442; hg19: chr16-89735850; API