rs112287010
Variant summary
Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7
The NM_000518.5(HBB):c.207C>T(p.Leu69Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000396 in 1,614,024 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00041 ( 0 hom. )
Consequence
HBB
NM_000518.5 synonymous
NM_000518.5 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.73
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 Benign. Variant got -11 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 11-5226685-G-A is Benign according to our data. Variant chr11-5226685-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 439141.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-5226685-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-1.73 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
HBB | NM_000518.5 | c.207C>T | p.Leu69Leu | synonymous_variant | 2/3 | ENST00000335295.4 | NP_000509.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
HBB | ENST00000335295.4 | c.207C>T | p.Leu69Leu | synonymous_variant | 2/3 | 1 | NM_000518.5 | ENSP00000333994.3 |
Frequencies
GnomAD3 genomes AF: 0.000230 AC: 35AN: 152042Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.000207 AC: 52AN: 251412Hom.: 0 AF XY: 0.000206 AC XY: 28AN XY: 135878
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GnomAD4 exome AF: 0.000413 AC: 604AN: 1461864Hom.: 0 Cov.: 36 AF XY: 0.000371 AC XY: 270AN XY: 727240
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GnomAD4 genome AF: 0.000230 AC: 35AN: 152160Hom.: 0 Cov.: 32 AF XY: 0.000202 AC XY: 15AN XY: 74408
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ClinVar
Significance: Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Benign:3
Likely benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Nov 01, 2024 | HBB: BP4, BP7 - |
Likely benign, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Feb 13, 2020 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 18, 2024 | - - |
not specified Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Aug 28, 2019 | - - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Feb 17, 2022 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
HBB-related disorder Benign:1
Likely benign, no assertion criteria provided | clinical testing | PreventionGenetics, part of Exact Sciences | Jul 17, 2019 | This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at