11-5226737-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_000518.5(HBB):​c.155C>A​(p.Pro52His) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,614,024 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P52R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

HBB
NM_000518.5 missense

Scores

2
9
8

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.63
Variant links:
Genes affected
HBB (HGNC:4827): (hemoglobin subunit beta) The alpha (HBA) and beta (HBB) loci determine the structure of the 2 types of polypeptide chains in adult hemoglobin, Hb A. The normal adult hemoglobin tetramer consists of two alpha chains and two beta chains. Mutant beta globin causes sickle cell anemia. Absence of beta chain causes beta-zero-thalassemia. Reduced amounts of detectable beta globin causes beta-plus-thalassemia. The order of the genes in the beta-globin cluster is 5'-epsilon -- gamma-G -- gamma-A -- delta -- beta--3'. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 5 benign, 16 uncertain in NM_000518.5
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HBBNM_000518.5 linkuse as main transcriptc.155C>A p.Pro52His missense_variant 2/3 ENST00000335295.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HBBENST00000335295.4 linkuse as main transcriptc.155C>A p.Pro52His missense_variant 2/31 NM_000518.5 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152148
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:
0.00000479
AC:
7
AN:
1461876
Hom.:
0
Cov.:
36
AF XY:
0.00000413
AC XY:
3
AN XY:
727244
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:
0.00000629
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74320
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
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Uncertain
0.10
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.082
T;T;.;T
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.14
FATHMM_MKL
Benign
0.43
N
LIST_S2
Uncertain
0.94
.;D;D;D
M_CAP
Benign
0.084
D
MetaRNN
Uncertain
0.59
D;D;D;D
MetaSVM
Uncertain
0.095
D
MutationAssessor
Pathogenic
2.9
M;M;.;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.1
D;.;.;D
REVEL
Uncertain
0.48
Sift
Uncertain
0.0020
D;.;.;D
Sift4G
Benign
0.083
T;.;.;.
Polyphen
0.0060
B;B;.;.
Vest4
0.62
MutPred
0.45
Gain of catalytic residue at P52 (P = 0.0401);Gain of catalytic residue at P52 (P = 0.0401);Gain of catalytic residue at P52 (P = 0.0401);Gain of catalytic residue at P52 (P = 0.0401);
MVP
0.93
MPC
0.20
ClinPred
0.95
D
GERP RS
5.1
Varity_R
0.42
gMVP
0.45

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs33969727; hg19: chr11-5247967; API