rs200386310

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 10P and 1B. PVS1PP5_ModerateBS1_Supporting

The NM_001355436.2(SPTB):​c.5455G>T​(p.Glu1819*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000203 in 1,613,670 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

SPTB
NM_001355436.2 stop_gained

Scores

1
4
2

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.817

Publications

5 publications found
Variant links:
Genes affected
SPTB (HGNC:11274): (spectrin beta, erythrocytic) This locus encodes a member of the spectrin gene family. Spectrin proteins, along with ankyrin, play a role in cell membrane organization and stability. The protein encoded by this locus functions in stability of erythrocyte membranes, and mutations in this gene have been associated with spherocytosis type 2, hereditary elliptocytosis, and neonatal hemolytic anemia. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2009]
SPTB Gene-Disease associations (from GenCC):
  • hereditary spherocytosis type 2
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • elliptocytosis 3
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • hereditary elliptocytosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary spherocytosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 14-64772678-C-A is Pathogenic according to our data. Variant chr14-64772678-C-A is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 225481.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population eas. GnomAdExome4 allele frequency = 0.000216 (316/1461334) while in subpopulation EAS AF = 0.00789 (313/39694). AF 95% confidence interval is 0.00717. There are 1 homozygotes in GnomAdExome4. There are 144 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPTBNM_001355436.2 linkc.5455G>T p.Glu1819* stop_gained Exon 26 of 36 ENST00000644917.1 NP_001342365.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPTBENST00000644917.1 linkc.5455G>T p.Glu1819* stop_gained Exon 26 of 36 NM_001355436.2 ENSP00000495909.1 P11277-2
SPTBENST00000553938.5 linkc.1450G>T p.Glu484* stop_gained Exon 7 of 18 1 ENSP00000451324.1 H0YJE6
SPTBENST00000389722.7 linkc.5455G>T p.Glu1819* stop_gained Exon 25 of 35 2 ENSP00000374372.3 P11277-2
SPTBENST00000389720.4 linkc.5455G>T p.Glu1819* stop_gained Exon 26 of 32 5 ENSP00000374370.4 P11277-1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152218
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00231
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000997
AC:
25
AN:
250764
AF XY:
0.0000958
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00136
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000216
AC:
316
AN:
1461334
Hom.:
1
Cov.:
33
AF XY:
0.000198
AC XY:
144
AN XY:
726986
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.00789
AC:
313
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53052
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111886
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
22
44
67
89
111
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.0000788
AC:
12
AN:
152336
Hom.:
0
Cov.:
33
AF XY:
0.0000806
AC XY:
6
AN XY:
74482
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41568
American (AMR)
AF:
0.00
AC:
0
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00231
AC:
12
AN:
5188
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:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000425
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.000148
AC:
18
Asia WGS
AF:
0.00144
AC:
5
AN:
3478

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary spherocytosis type 2 Pathogenic:1
Mar 18, 2016
Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:reference population

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Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Pathogenic
0.41
CADD
Pathogenic
40
DANN
Uncertain
1.0
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Benign
0.50
D
PhyloP100
0.82
Vest4
0.76
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Mutation Taster
=3/197
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: rs200386310; hg19: chr14-65239396; API