rs121918635

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_003126.4(SPTA1):ā€‹c.1412A>Cā€‹(p.Gln471Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,998 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 (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

SPTA1
NM_003126.4 missense

Scores

3
10
6

Clinical Significance

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

Conservation

PhyloP100: 7.42
Variant links:
Genes affected
SPTA1 (HGNC:11272): (spectrin alpha, erythrocytic 1) This gene encodes a member of a family of molecular scaffold proteins that link the plasma membrane to the actin cytoskeleton and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. The encoded protein is primarily composed of 22 spectrin repeats which are involved in dimer formation. It forms a component of the erythrocyte plasma membrane. Mutations in this gene result in a variety of hereditary red blood cell disorders, including elliptocytosis-2, pyropoikilocytosis, and spherocytosis, type 3. [provided by RefSeq, Aug 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.974

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPTA1NM_003126.4 linkuse as main transcriptc.1412A>C p.Gln471Pro missense_variant 11/52 ENST00000643759.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPTA1ENST00000643759.2 linkuse as main transcriptc.1412A>C p.Gln471Pro missense_variant 11/52 NM_003126.4 P1P02549-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152242
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249268
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135216
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461756
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727180
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152242
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189

ClinVar

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

Submissions by phenotype

Elliptocytosis 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMOct 01, 1989- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityDec 21, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Uncertain
0.086
D
BayesDel_noAF
Uncertain
0.070
CADD
Uncertain
23
DANN
Uncertain
0.98
DEOGEN2
Uncertain
0.65
D;D
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.76
.;T
M_CAP
Benign
0.051
D
MetaRNN
Pathogenic
0.97
D;D
MetaSVM
Benign
-0.84
T
MutationAssessor
Uncertain
2.9
M;M
MutationTaster
Benign
1.0
A;A
PrimateAI
Benign
0.40
T
PROVEAN
Uncertain
-3.3
D;.
REVEL
Uncertain
0.52
Sift
Benign
0.17
T;.
Sift4G
Uncertain
0.022
D;.
Polyphen
0.99
D;D
Vest4
0.93
MutPred
0.83
Loss of helix (P = 0.2271);Loss of helix (P = 0.2271);
MVP
0.83
MPC
0.23
ClinPred
0.93
D
GERP RS
5.0
Varity_R
0.93
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs121918635; hg19: chr1-158641925; API