rs144510878

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_170601.5(SIAE):​c.935C>T​(p.Thr312Met) variant causes a missense change. The variant allele was found at a frequency of 0.00118 in 1,614,190 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. T312T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0010 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 1 hom. )

Consequence

SIAE
NM_170601.5 missense

Scores

11
5
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1O:1

Conservation

PhyloP100: 6.17

Publications

10 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: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_170601.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SIAE
NM_170601.5
MANE Select
c.935C>Tp.Thr312Met
missense
Exon 7 of 10NP_733746.1
SIAE
NM_001199922.2
c.830C>Tp.Thr277Met
missense
Exon 9 of 12NP_001186851.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SIAE
ENST00000263593.8
TSL:1 MANE Select
c.935C>Tp.Thr312Met
missense
Exon 7 of 10ENSP00000263593.3
SIAE
ENST00000618733.4
TSL:1
c.830C>Tp.Thr277Met
missense
Exon 9 of 12ENSP00000478211.1
SIAE
ENST00000545756.5
TSL:5
c.830C>Tp.Thr277Met
missense
Exon 8 of 11ENSP00000437877.1

Frequencies

GnomAD3 genomes
AF:
0.00102
AC:
155
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00104
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00185
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.00101
AC:
254
AN:
251420
AF XY:
0.00108
show subpopulations
Gnomad AFR exome
AF:
0.000431
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00119
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000831
Gnomad NFE exome
AF:
0.00175
Gnomad OTH exome
AF:
0.00130
GnomAD4 exome
AF:
0.00120
AC:
1748
AN:
1461882
Hom.:
1
Cov.:
32
AF XY:
0.00115
AC XY:
834
AN XY:
727242
show subpopulations
African (AFR)
AF:
0.000329
AC:
11
AN:
33480
American (AMR)
AF:
0.000246
AC:
11
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00149
AC:
39
AN:
26136
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00107
AC:
57
AN:
53420
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.00140
AC:
1556
AN:
1112002
Other (OTH)
AF:
0.00116
AC:
70
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
98
196
294
392
490
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
50
100
150
200
250
<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
AF:
0.00102
AC:
156
AN:
152308
Hom.:
0
Cov.:
32
AF XY:
0.000873
AC XY:
65
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.000241
AC:
10
AN:
41564
American (AMR)
AF:
0.000131
AC:
2
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00144
AC:
5
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00104
AC:
11
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00187
AC:
127
AN:
68024
Other (OTH)
AF:
0.000473
AC:
1
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
8
16
25
33
41
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00145
Hom.:
0
Bravo
AF:
0.000824
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00156
AC:
6
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00209
AC:
18
ExAC
AF:
0.00121
AC:
147
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00164
EpiControl
AF:
0.00154

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 312 of the SIAE protein (p.Thr312Met). This variant is present in population databases (rs144510878, gnomAD 0.2%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with autoimmune disorders (PMID: 20555325, 22257840, 23011869). ClinVar contains an entry for this variant (Variation ID: 1350). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Experimental studies have shown that this missense change affects SIAE function (PMID: 20555325). 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.

Autoimmune disease, susceptibility to, 6 Other:1
Jul 08, 2010
OMIM
Significance:risk factor
Review Status:no assertion criteria provided
Collection Method:literature only

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Pathogenic
0.45
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.89
D
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.20
D
MetaRNN
Uncertain
0.48
T
MetaSVM
Pathogenic
0.84
D
MutationAssessor
Pathogenic
3.1
M
PhyloP100
6.2
PrimateAI
Uncertain
0.51
T
PROVEAN
Pathogenic
-5.2
D
REVEL
Pathogenic
0.74
Sift
Benign
0.039
D
Sift4G
Uncertain
0.035
D
Polyphen
1.0
D
Vest4
0.87
MVP
0.82
MPC
0.62
ClinPred
0.070
T
GERP RS
5.5
Varity_R
0.31
gMVP
0.82
Mutation Taster
=15/85
disease causing

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: rs144510878; hg19: chr11-124517292; COSMIC: COSV55013720; API