chr16-89669441-C-T

Variant summary

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

The NM_001271907.2(SPATA33):​c.367C>T​(p.Arg123Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000083 in 1,613,922 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R123Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000064 ( 0 hom. )

Consequence

SPATA33
NM_001271907.2 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.935
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=0.009714067).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPATA33NM_001271907.2 linkuse as main transcriptc.367C>T p.Arg123Trp missense_variant 3/3 ENST00000579310.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPATA33ENST00000579310.6 linkuse as main transcriptc.367C>T p.Arg123Trp missense_variant 3/32 NM_001271907.2 P2Q96N06-2

Frequencies

GnomAD3 genomes
AF:
0.000263
AC:
40
AN:
152164
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000893
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
GnomAD3 exomes
AF:
0.0000875
AC:
22
AN:
251422
Hom.:
0
AF XY:
0.0000662
AC XY:
9
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.000923
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000643
AC:
94
AN:
1461640
Hom.:
0
Cov.:
32
AF XY:
0.0000715
AC XY:
52
AN XY:
727110
show subpopulations
Gnomad4 AFR exome
AF:
0.000657
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000540
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000263
AC:
40
AN:
152282
Hom.:
0
Cov.:
32
AF XY:
0.000295
AC XY:
22
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.000890
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.000314
ESP6500AA
AF:
0.000455
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.0000545
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 GeneticsMay 30, 2024The c.364C>T (p.R122W) alteration is located in exon 3 (coding exon 3) of the SPATA33 gene. This alteration results from a C to T substitution at nucleotide position 364, causing the arginine (R) at amino acid position 122 to be replaced by a tryptophan (W). 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
0.087
BayesDel_addAF
Benign
-0.59
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
3.5
DANN
Benign
0.29
DEOGEN2
Benign
0.0042
T;.;.;T
Eigen
Benign
-1.9
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.0015
N
LIST_S2
Benign
0.31
T;T;T;T
M_CAP
Benign
0.0025
T
MetaRNN
Benign
0.0097
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.20
N;.;.;.
MutationTaster
Benign
1.0
N;N
PROVEAN
Benign
-0.22
N;.;.;.
REVEL
Benign
0.014
Sift
Benign
0.19
T;.;.;.
Sift4G
Benign
0.20
T;T;T;T
Polyphen
0.0
B;.;.;.
Vest4
0.10
MVP
0.12
MPC
0.0082
ClinPred
0.013
T
GERP RS
-9.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.041
gMVP
0.067

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: rs184245173; hg19: chr16-89735849; API