1-9367529-C-T

Variant summary

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

The NM_025106.4(SPSB1):​c.776C>T​(p.Thr259Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000558 in 1,612,714 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 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

SPSB1
NM_025106.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.31
Variant links:
Genes affected
SPSB1 (HGNC:30628): (splA/ryanodine receptor domain and SOCS box containing 1) Enables ubiquitin ligase-substrate adaptor activity. Involved in protein ubiquitination and ubiquitin-dependent protein catabolic process. Located in cytosol. [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=0.059744596).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPSB1NM_025106.4 linkc.776C>T p.Thr259Met missense_variant 3/3 ENST00000328089.11 NP_079382.2 Q96BD6A0A024R4G8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPSB1ENST00000328089.11 linkc.776C>T p.Thr259Met missense_variant 3/31 NM_025106.4 ENSP00000330221.6 Q96BD6
SPSB1ENST00000377399.2 linkc.776C>T p.Thr259Met missense_variant 2/21 ENSP00000366616.2 Q96BD6
SPSB1ENST00000357898.3 linkc.776C>T p.Thr259Met missense_variant 3/35 ENSP00000350573.3 Q96BD6

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152152
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000964
AC:
24
AN:
248978
Hom.:
0
AF XY:
0.0000963
AC XY:
13
AN XY:
134948
show subpopulations
Gnomad AFR exome
AF:
0.0000628
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00130
Gnomad EAS exome
AF:
0.0000548
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.0000929
Gnomad NFE exome
AF:
0.0000535
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000534
AC:
78
AN:
1460562
Hom.:
0
Cov.:
31
AF XY:
0.0000619
AC XY:
45
AN XY:
726568
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00115
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.0000567
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.0000829
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152152
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74310
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000270
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000989
AC:
12
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

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 GeneticsMar 28, 2024The c.776C>T (p.T259M) alteration is located in exon 3 (coding exon 2) of the SPSB1 gene. This alteration results from a C to T substitution at nucleotide position 776, causing the threonine (T) at amino acid position 259 to be replaced by a methionine (M). 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
0.096
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.11
T;T;T
Eigen
Benign
-0.12
Eigen_PC
Benign
-0.14
FATHMM_MKL
Benign
0.62
D
LIST_S2
Uncertain
0.91
.;.;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.060
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.72
N;N;N
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-1.1
N;N;N
REVEL
Benign
0.065
Sift
Benign
0.077
T;T;T
Sift4G
Benign
0.084
T;T;T
Polyphen
0.68
P;P;P
Vest4
0.28
MVP
0.27
MPC
1.4
ClinPred
0.14
T
GERP RS
4.2
Varity_R
0.034
gMVP
0.34

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: rs770144020; hg19: chr1-9427588; API