chr19-35527027-C-A

Variant summary

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

The NM_001166034.2(SBSN):​c.1255G>T​(p.Ala419Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000165 in 1,541,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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. A419P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

SBSN
NM_001166034.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.618
Variant links:
Genes affected
SBSN (HGNC:24950): (suprabasin) Located in extracellular exosome. [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=0.05250919).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SBSNNM_001166034.2 linkuse as main transcriptc.1255G>T p.Ala419Ser missense_variant 1/4 ENST00000452271.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SBSNENST00000452271.7 linkuse as main transcriptc.1255G>T p.Ala419Ser missense_variant 1/41 NM_001166034.2 P2Q6UWP8-1
SBSNENST00000518157.1 linkuse as main transcriptc.376-150G>T intron_variant 1 A2Q6UWP8-2
SBSNENST00000588674.5 linkuse as main transcriptc.315+880G>T intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152056
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.000148
AC:
22
AN:
148724
Hom.:
0
AF XY:
0.000139
AC XY:
11
AN XY:
79046
show subpopulations
Gnomad AFR exome
AF:
0.000121
Gnomad AMR exome
AF:
0.000162
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000889
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000250
Gnomad OTH exome
AF:
0.000230
GnomAD4 exome
AF:
0.000168
AC:
233
AN:
1389710
Hom.:
0
Cov.:
64
AF XY:
0.000176
AC XY:
121
AN XY:
685742
show subpopulations
Gnomad4 AFR exome
AF:
0.000127
Gnomad4 AMR exome
AF:
0.000140
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000280
Gnomad4 SAS exome
AF:
0.0000126
Gnomad4 FIN exome
AF:
0.0000253
Gnomad4 NFE exome
AF:
0.000197
Gnomad4 OTH exome
AF:
0.000103
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152056
Hom.:
0
Cov.:
33
AF XY:
0.000121
AC XY:
9
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.0000725
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00144
Alfa
AF:
0.000130
Hom.:
0
Bravo
AF:
0.000193
ExAC
AF:
0.0000255
AC:
2

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 GeneticsJun 22, 2021The c.1255G>T (p.A419S) alteration is located in exon 1 (coding exon 1) of the SBSN gene. This alteration results from a G to T substitution at nucleotide position 1255, causing the alanine (A) at amino acid position 419 to be replaced by a serine (S). 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
0.11
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
2.3
DANN
Benign
0.82
DEOGEN2
Benign
0.0060
T
Eigen
Benign
-0.62
Eigen_PC
Benign
-0.74
FATHMM_MKL
Benign
0.046
N
LIST_S2
Benign
0.48
T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.053
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.71
N
REVEL
Benign
0.031
Sift
Benign
0.20
T
Sift4G
Benign
0.27
T
Vest4
0.099
MVP
0.29
MPC
0.56
ClinPred
0.023
T
GERP RS
1.7
Varity_R
0.053
gMVP
0.0048

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: rs540224250; hg19: chr19-36017929; COSMIC: COSV99069250; API