rs386833504

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_000112.4(SLC26A2):​c.403C>A​(p.Gln135Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,120 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLC26A2
NM_000112.4 missense

Scores

7
9
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:2

Conservation

PhyloP100: 6.13

Publications

0 publications found
Variant links:
Genes affected
SLC26A2 (HGNC:10994): (solute carrier family 26 member 2) The diastrophic dysplasia sulfate transporter is a transmembrane glycoprotein implicated in the pathogenesis of several human chondrodysplasias. It apparently is critical in cartilage for sulfation of proteoglycans and matrix organization. [provided by RefSeq, Jul 2008]
SLC26A2 Gene-Disease associations (from GenCC):
  • achondrogenesis type IB
    Inheritance: AR Classification: DEFINITIVE, MODERATE, SUPPORTIVE Submitted by: ClinGen, G2P, Ambry Genetics, Orphanet
  • atelosteogenesis type II
    Inheritance: AR Classification: DEFINITIVE, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, ClinGen, Orphanet
  • diastrophic dysplasia
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
  • multiple epiphyseal dysplasia
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • multiple epiphyseal dysplasia type 4
    Inheritance: AR Classification: DEFINITIVE, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, G2P
  • SLC26A2-related skeletal dysplasia
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • skeletal dysplasia
    Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 26 curated pathogenic missense variants (we use a threshold of 10). The gene has 6 curated benign missense variants. Gene score misZ: 0.031413 (below the threshold of 3.09). Trascript score misZ: 1.4892 (below the threshold of 3.09). GenCC associations: The gene is linked to multiple epiphyseal dysplasia type 4, atelosteogenesis type II, achondrogenesis type IB, diastrophic dysplasia, multiple epiphyseal dysplasia.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.923

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000112.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC26A2
NM_000112.4
MANE Select
c.403C>Ap.Gln135Lys
missense
Exon 2 of 3NP_000103.2P50443

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC26A2
ENST00000286298.5
TSL:1 MANE Select
c.403C>Ap.Gln135Lys
missense
Exon 2 of 3ENSP00000286298.4P50443
SLC26A2
ENST00000862081.1
c.403C>Ap.Gln135Lys
missense
Exon 3 of 4ENSP00000532140.1
SLC26A2
ENST00000862082.1
c.403C>Ap.Gln135Lys
missense
Exon 2 of 3ENSP00000532141.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1460994
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
726714
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33434
American (AMR)
AF:
0.00
AC:
0
AN:
44652
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26084
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86176
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53386
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111458
Other (OTH)
AF:
0.00
AC:
0
AN:
60348
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
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
AF:
0.0000131
AC:
2
AN:
152126
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74312
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41424
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000282
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
Diastrophic dysplasia (1)
-
1
-
Diastrophic dysplasia;C0265274:Achondrogenesis, type IB;C1847593:Multiple epiphyseal dysplasia type 4;C1850554:Atelosteogenesis type II (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.35
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.63
D
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.071
D
MetaRNN
Pathogenic
0.92
D
MetaSVM
Uncertain
0.79
D
MutationAssessor
Uncertain
2.3
M
PhyloP100
6.1
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-1.6
N
REVEL
Pathogenic
0.82
Sift
Uncertain
0.023
D
Sift4G
Uncertain
0.031
D
Polyphen
0.97
D
Vest4
0.89
MutPred
0.82
Gain of ubiquitination at Q135 (P = 0.0267)
MVP
0.99
MPC
0.34
ClinPred
0.84
D
GERP RS
5.7
PromoterAI
-0.018
Neutral
Varity_R
0.85
gMVP
0.86
Mutation Taster
=25/75
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: rs386833504; hg19: chr5-149357618; API