rs139024319

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3PP5

The NM_022042.4(SLC26A1):​c.554C>T​(p.Thr185Met) variant causes a missense change. The variant allele was found at a frequency of 0.000294 in 1,552,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T185T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00031 ( 0 hom. )

Consequence

SLC26A1
NM_022042.4 missense

Scores

11
6
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:4U:4

Conservation

PhyloP100: 6.76

Publications

8 publications found
Variant links:
Genes affected
SLC26A1 (HGNC:10993): (solute carrier family 26 member 1) This gene is a member of a family of sulfate/anion transporter genes. Family members are well conserved in their genomic (number and size of exons) and protein (aa length among species) structures, but have markedly different tissue expression patterns. This gene is primarily expressed in the liver, pancreas, and brain. Three splice variants that encode different isoforms have been identified. [provided by RefSeq, Jul 2008]
IDUA (HGNC:5391): (alpha-L-iduronidase) This gene encodes an enzyme that hydrolyzes the terminal alpha-L-iduronic acid residues of two glycosaminoglycans, dermatan sulfate and heparan sulfate. This hydrolysis is required for the lysosomal degradation of these glycosaminoglycans. Mutations in this gene that result in enzymatic deficiency lead to the autosomal recessive disease mucopolysaccharidosis type I (MPS I). [provided by RefSeq, Jul 2008]
IDUA Gene-Disease associations (from GenCC):
  • mucopolysaccharidosis type 1
    Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health, ClinGen
  • Scheie syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
  • Hurler syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
  • Hurler-Scheie syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.827
PP5
Variant 4-991150-G-A is Pathogenic according to our data. Variant chr4-991150-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 242374.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022042.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC26A1
NM_022042.4
MANE Select
c.554C>Tp.Thr185Met
missense
Exon 2 of 3NP_071325.2
IDUA
NM_000203.5
MANE Select
c.299+3201G>A
intron
N/ANP_000194.2P35475-1
SLC26A1
NM_213613.4
c.554C>Tp.Thr185Met
missense
Exon 3 of 4NP_998778.1Q9H2B4-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC26A1
ENST00000398516.3
TSL:1 MANE Select
c.554C>Tp.Thr185Met
missense
Exon 2 of 3ENSP00000381528.2Q9H2B4-1
SLC26A1
ENST00000361661.6
TSL:1
c.554C>Tp.Thr185Met
missense
Exon 3 of 4ENSP00000354721.2Q9H2B4-1
SLC26A1
ENST00000398520.6
TSL:1
c.554C>Tp.Thr185Met
missense
Exon 2 of 3ENSP00000381532.2Q9H2B4-2

Frequencies

GnomAD3 genomes
AF:
0.000184
AC:
28
AN:
152208
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000353
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000254
AC:
52
AN:
204950
AF XY:
0.000211
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000331
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000505
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000316
Gnomad OTH exome
AF:
0.000816
GnomAD4 exome
AF:
0.000306
AC:
429
AN:
1400092
Hom.:
0
Cov.:
32
AF XY:
0.000313
AC XY:
215
AN XY:
687962
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32296
American (AMR)
AF:
0.000274
AC:
11
AN:
40110
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22076
East Asian (EAS)
AF:
0.000128
AC:
5
AN:
39076
South Asian (SAS)
AF:
0.0000131
AC:
1
AN:
76392
European-Finnish (FIN)
AF:
0.0000605
AC:
3
AN:
49616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4840
European-Non Finnish (NFE)
AF:
0.000359
AC:
387
AN:
1077992
Other (OTH)
AF:
0.000381
AC:
22
AN:
57694
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
29
58
88
117
146
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.000184
AC:
28
AN:
152326
Hom.:
0
Cov.:
34
AF XY:
0.000148
AC XY:
11
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41572
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.000387
AC:
2
AN:
5166
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000353
AC:
24
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.000384
Hom.:
0
Bravo
AF:
0.000196
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000582
AC:
5
ExAC
AF:
0.000216
AC:
26
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
2
1
-
not provided (3)
-
2
-
Nephrolithiasis susceptibility caused by SLC26A1;C5830511:Hypersulfaturia (2)
2
-
-
Nephrolithiasis, calcium oxalate (2)
-
1
-
SLC26A1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.34
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.51
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.75
D
Eigen
Uncertain
0.68
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.86
D
M_CAP
Pathogenic
0.58
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.1
M
PhyloP100
6.8
PrimateAI
Uncertain
0.54
T
PROVEAN
Pathogenic
-5.4
D
REVEL
Pathogenic
0.80
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.87
MVP
0.98
MPC
0.56
ClinPred
0.65
D
GERP RS
5.4
Varity_R
0.82
gMVP
0.93
Mutation Taster
=3/97
disease causing (ClinVar)

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: rs139024319; hg19: chr4-984938; API