IthaID: 3446


Names and Sequences

Functionality: Neutral polymorphism Pathogenicity: Benign / Likely Benign
Common Name: IVS II-579 G>T HGVS Name: HBB:c.316-272G>T

Context nucleotide sequence:
TTTCCCTAATCTCTTTCTTTCA [T/G] GGCAATAATGATACAATGTATCA (Strand: -)

Also known as:

Comments: This mutation is an innocuous SNP associated with a well-characterised cryptic splice acceptor site in HBB. The cryptic splice acceptor is activated by mutation IthaID 214, leading to aberrant splicing, inclusion of a pseudo-exon in the HBB mRNA and beta-thalassaemia. Mutation IthaID 214 retains residual normal splicing activity, and in presence of the causative mutation this SNP may thus conceivably increase normal splicing and ameliorate the associated phenotype.

External Links

Phenotype

Allele Phenotype:Neutral
Associated Phenotypes: N/A

Location

Chromosome: 11
Locus: NG_000007.3
Locus Location: 71618
Size: 1 bp
Located at: β
Specific Location: Intron 2

Other details

Type of Mutation: Point-Mutation(Substitution)
Effect on Gene/Protein Function: N/A
Ethnic Origin: N/A
Molecular mechanism: N/A
Inheritance: Quantitative trait
DNA Sequence Determined: No

Publications / Origin

  1. Treisman R, Orkin SH, Maniatis T, Specific transcription and RNA splicing defects in five cloned beta-thalassaemia genes., Nature, 302(5909), 591-6, 1983
Created on 2019-09-23 12:50:17, Last reviewed on 2020-09-28 16:57:24 (Show full history)

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