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GeneBe

2-213350614-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_024532.5(SPAG16):c.731C>T(p.Thr244Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00002 in 1,601,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

SPAG16
NM_024532.5 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.25
Variant links:
Genes affected
SPAG16 (HGNC:23225): (sperm associated antigen 16) Cilia and flagella are comprised of a microtubular backbone, the axoneme, which is organized by the basal body and surrounded by plasma membrane. SPAG16 encodes 2 major proteins that associate with the axoneme of sperm tail and the nucleus of postmeiotic germ cells, respectively (Zhang et al., 2007 [PubMed 17699735]).[supplied by OMIM, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.39149433).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPAG16NM_024532.5 linkuse as main transcriptc.731C>T p.Thr244Ile missense_variant 7/16 ENST00000331683.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPAG16ENST00000331683.10 linkuse as main transcriptc.731C>T p.Thr244Ile missense_variant 7/161 NM_024532.5 P1Q8N0X2-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152012
Hom.:
0
Cov.:
32
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000249
AC:
6
AN:
240740
Hom.:
0
AF XY:
0.0000307
AC XY:
4
AN XY:
130158
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000450
Gnomad OTH exome
AF:
0.000171
GnomAD4 exome
AF:
0.0000207
AC:
30
AN:
1449060
Hom.:
0
Cov.:
29
AF XY:
0.0000236
AC XY:
17
AN XY:
720726
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000240
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000360
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.0000668
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152012
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74258
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000731
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

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 GeneticsFeb 16, 2023The c.731C>T (p.T244I) alteration is located in exon 7 (coding exon 7) of the SPAG16 gene. This alteration results from a C to T substitution at nucleotide position 731, causing the threonine (T) at amino acid position 244 to be replaced by an isoleucine (I). 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
0.17
BayesDel_addAF
Benign
-0.072
T
BayesDel_noAF
Benign
-0.21
Cadd
Benign
19
Dann
Benign
0.72
DEOGEN2
Benign
0.087
T;T;.;T
Eigen
Benign
0.15
Eigen_PC
Benign
0.22
FATHMM_MKL
Benign
0.74
D
LIST_S2
Benign
0.74
T;T;T;T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.39
T;T;T;T
MetaSVM
Benign
-0.79
T
MutationTaster
Benign
0.95
N;N;N;N;N
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-3.3
D;D;D;D
REVEL
Benign
0.20
Sift
Benign
0.52
T;T;T;T
Sift4G
Uncertain
0.014
D;D;D;D
Polyphen
0.91
.;P;.;.
Vest4
0.65, 0.64, 0.66
MutPred
0.68
Gain of sheet (P = 0.0221);Gain of sheet (P = 0.0221);.;Gain of sheet (P = 0.0221);
MVP
0.73
MPC
0.023
ClinPred
0.42
T
GERP RS
4.5
Varity_R
0.10
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: rs528853880; hg19: chr2-214215338; API