11-5234352-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM5

The NM_000519.4(HBD):​c.82G>A​(p.Ala28Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,708 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A28S) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HBD
NM_000519.4 missense

Scores

4
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0400
Variant links:
Genes affected
HBD (HGNC:4829): (hemoglobin subunit delta) The delta (HBD) and beta (HBB) genes are normally expressed in the adult: two alpha chains plus two beta chains constitute HbA, which in normal adult life comprises about 97% of the total hemoglobin. Two alpha chains plus two delta chains constitute HbA-2, which with HbF comprises the remaining 3% of adult hemoglobin. Five beta-like globin genes are found within a 45 kb cluster on chromosome 11 in the following order: 5'-epsilon--Ggamma--Agamma--delta--beta-3'. Mutations in the delta-globin gene are associated with beta-thalassemia. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr11-5234352-C-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HBDNM_000519.4 linkc.82G>A p.Ala28Thr missense_variant Exon 1 of 3 ENST00000650601.1 NP_000510.1 P02042A0N071

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HBDENST00000650601.1 linkc.82G>A p.Ala28Thr missense_variant Exon 1 of 3 NM_000519.4 ENSP00000497529.1 P02042

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
32
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:
0.000192
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
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461508
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727110
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Uncertain
0.059
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
14
DANN
Uncertain
1.0
DEOGEN2
Benign
0.033
T;T;T;T;.;T
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.50
FATHMM_MKL
Benign
0.31
N
LIST_S2
Benign
0.84
T;.;.;T;D;T
M_CAP
Benign
0.072
D
MetaRNN
Uncertain
0.46
T;T;T;T;T;T
MetaSVM
Benign
-0.51
T
MutationAssessor
Benign
1.8
.;L;L;L;.;.
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-1.2
N;.;N;.;N;N
REVEL
Uncertain
0.59
Sift
Benign
0.030
D;.;T;.;D;D
Sift4G
Benign
0.19
T;.;T;.;D;.
Polyphen
0.59
.;P;P;P;.;.
Vest4
0.41
MutPred
0.77
Gain of catalytic residue at A28 (P = 0.1725);Gain of catalytic residue at A28 (P = 0.1725);Gain of catalytic residue at A28 (P = 0.1725);Gain of catalytic residue at A28 (P = 0.1725);Gain of catalytic residue at A28 (P = 0.1725);Gain of catalytic residue at A28 (P = 0.1725);
MVP
0.78
MPC
0.015
ClinPred
0.67
D
GERP RS
-0.76
Varity_R
0.26
gMVP
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs35152987; hg19: chr11-5255582; API