11-124636979-G-A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_170601.5(SIAE):​c.1544C>T​(p.Pro515Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

SIAE
NM_170601.5 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.16

Publications

0 publications found
Variant links:
Genes affected
SIAE (HGNC:18187): (sialic acid acetylesterase) This gene encodes an enzyme which removes 9-O-acetylation modifications from sialic acids. Mutations in this gene are associated with susceptibility to autoimmune disease 6. Multiple transcript variants encoding different isoforms, found either in the cytosol or in the lysosome, have been found for this gene.[provided by RefSeq, Feb 2011]
SIAE Gene-Disease associations (from GenCC):
  • autoimmune disease, susceptibility to, 6
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.17770916).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SIAENM_170601.5 linkc.1544C>T p.Pro515Leu missense_variant Exon 10 of 10 ENST00000263593.8 NP_733746.1 Q9HAT2-1
SIAENM_001199922.2 linkc.1439C>T p.Pro480Leu missense_variant Exon 12 of 12 NP_001186851.1 Q9HAT2-2
SIAEXM_047427132.1 linkc.971C>T p.Pro324Leu missense_variant Exon 7 of 7 XP_047283088.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SIAEENST00000263593.8 linkc.1544C>T p.Pro515Leu missense_variant Exon 10 of 10 1 NM_170601.5 ENSP00000263593.3 Q9HAT2-1
SIAEENST00000618733.4 linkc.1439C>T p.Pro480Leu missense_variant Exon 12 of 12 1 ENSP00000478211.1 Q9HAT2-2
SIAEENST00000545756.5 linkc.1439C>T p.Pro480Leu missense_variant Exon 11 of 11 5 ENSP00000437877.1 Q9HAT2-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
251458
AF XY:
0.0000221
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
22
AN:
1461892
Hom.:
0
Cov.:
30
AF XY:
0.0000206
AC XY:
15
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.000255
AC:
22
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112012
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jul 20, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1544C>T (p.P515L) alteration is located in exon 10 (coding exon 10) of the SIAE gene. This alteration results from a C to T substitution at nucleotide position 1544, causing the proline (P) at amino acid position 515 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Jul 06, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 515 of the SIAE protein (p.Pro515Leu). This variant is present in population databases (rs762731994, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with SIAE-related conditions. ClinVar contains an entry for this variant (Variation ID: 1469979). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
14
DANN
Uncertain
0.98
DEOGEN2
Benign
0.20
T;.;.
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.27
N
LIST_S2
Benign
0.50
T;T;.
M_CAP
Benign
0.039
D
MetaRNN
Benign
0.18
T;T;T
MetaSVM
Benign
-0.57
T
MutationAssessor
Benign
1.5
L;.;.
PhyloP100
3.2
PrimateAI
Benign
0.28
T
PROVEAN
Benign
-1.5
N;N;.
REVEL
Benign
0.23
Sift
Uncertain
0.010
D;D;.
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
0.0010
B;.;.
Vest4
0.15
MutPred
0.37
Gain of catalytic residue at P515 (P = 0.0065);.;.;
MVP
0.68
MPC
0.19
ClinPred
0.13
T
GERP RS
4.0
Varity_R
0.039
gMVP
0.37
Mutation Taster
=95/5
polymorphism

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

Other links and lift over

dbSNP: rs762731994; hg19: chr11-124506875; API