rs34945623
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PM5PP5
The NM_000518.5(HBB):c.346G>T(p.Ala116Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in Lovd as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A116P) has been classified as Uncertain significance.
Frequency
Genomes: not found (cov: 33)
Consequence
HBB
NM_000518.5 missense
NM_000518.5 missense
Scores
2
8
8
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: 2.03
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
PM1
?
In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 14 uncertain in NM_000518.5
PM2
?
Very rare variant in population databases, with high coverage;
PM5
?
Other missense variant is known to change same aminoacid residue: Variant chr11-5225695-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 15526.Status of the report is criteria_provided_single_submitter, 1 stars.
PP5
?
Variant 11-5225696-C-A is Pathogenic according to our data. Variant chr11-5225696-C-A is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
HBB | NM_000518.5 | c.346G>T | p.Ala116Ser | missense_variant | 3/3 | ENST00000335295.4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
HBB | ENST00000335295.4 | c.346G>T | p.Ala116Ser | missense_variant | 3/3 | 1 | NM_000518.5 | P1 | |
HBB | ENST00000647020.1 | c.346G>T | p.Ala116Ser | missense_variant | 3/3 | P1 | |||
HBB | ENST00000475226.1 | n.278G>T | non_coding_transcript_exon_variant | 2/2 | 2 | ||||
HBB | ENST00000633227.1 | c.*162G>T | 3_prime_UTR_variant, NMD_transcript_variant | 3/3 | 3 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
Bravo
AF:
ClinVar
Not reported inComputational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
Cadd
Benign
Dann
Uncertain
DEOGEN2
Benign
T;T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
M_CAP
Uncertain
D
MetaRNN
Uncertain
D;D
MetaSVM
Uncertain
D
MutationAssessor
Pathogenic
M;M
MutationTaster
Benign
D
PrimateAI
Benign
T
PROVEAN
Benign
N;.
REVEL
Uncertain
Sift
Benign
T;.
Sift4G
Uncertain
D;.
Polyphen
B;B
Vest4
MutPred
Gain of disorder (P = 0.0773);Gain of disorder (P = 0.0773);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at