rs143820600

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001355436.2(SPTB):​c.6483C>T​(p.Ser2161=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0019 in 1,613,600 control chromosomes in the GnomAD database, including 24 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0023 ( 3 hom., cov: 32)
Exomes 𝑓: 0.0019 ( 21 hom. )

Consequence

SPTB
NM_001355436.2 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.926
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant 14-64753656-G-A is Benign according to our data. Variant chr14-64753656-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 994185.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-64753656-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-0.926 with no splicing effect.
BS1
Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.00185 (2708/1461406) while in subpopulation MID AF= 0.0128 (74/5768). AF 95% confidence interval is 0.0105. There are 21 homozygotes in gnomad4_exome. There are 1408 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 3 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPTBNM_001355436.2 linkuse as main transcriptc.6483C>T p.Ser2161= synonymous_variant 33/36 ENST00000644917.1 NP_001342365.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPTBENST00000644917.1 linkuse as main transcriptc.6483C>T p.Ser2161= synonymous_variant 33/36 NM_001355436.2 ENSP00000495909 P1P11277-2

Frequencies

GnomAD3 genomes
AF:
0.00234
AC:
356
AN:
152076
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000435
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000982
Gnomad ASJ
AF:
0.00980
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00124
Gnomad FIN
AF:
0.0179
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.00116
Gnomad OTH
AF:
0.00430
GnomAD3 exomes
AF:
0.00351
AC:
883
AN:
251306
Hom.:
10
AF XY:
0.00361
AC XY:
490
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.000431
Gnomad AMR exome
AF:
0.00194
Gnomad ASJ exome
AF:
0.0105
Gnomad EAS exome
AF:
0.000381
Gnomad SAS exome
AF:
0.00359
Gnomad FIN exome
AF:
0.0171
Gnomad NFE exome
AF:
0.00163
Gnomad OTH exome
AF:
0.00522
GnomAD4 exome
AF:
0.00185
AC:
2708
AN:
1461406
Hom.:
21
Cov.:
31
AF XY:
0.00194
AC XY:
1408
AN XY:
726984
show subpopulations
Gnomad4 AFR exome
AF:
0.000388
Gnomad4 AMR exome
AF:
0.00181
Gnomad4 ASJ exome
AF:
0.0103
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.00340
Gnomad4 FIN exome
AF:
0.0182
Gnomad4 NFE exome
AF:
0.000761
Gnomad4 OTH exome
AF:
0.00263
GnomAD4 genome
AF:
0.00234
AC:
356
AN:
152194
Hom.:
3
Cov.:
32
AF XY:
0.00298
AC XY:
222
AN XY:
74414
show subpopulations
Gnomad4 AFR
AF:
0.000434
Gnomad4 AMR
AF:
0.000981
Gnomad4 ASJ
AF:
0.00980
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00124
Gnomad4 FIN
AF:
0.0179
Gnomad4 NFE
AF:
0.00116
Gnomad4 OTH
AF:
0.00426
Alfa
AF:
0.00162
Hom.:
1
Bravo
AF:
0.00113
EpiCase
AF:
0.00158
EpiControl
AF:
0.00184

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesMay 27, 2022- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenAug 01, 2024SPTB: BP4, BP7, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
0.77
DANN
Benign
0.50

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs143820600; hg19: chr14-65220374; COSMIC: COSV100731198; COSMIC: COSV100731198; API