Loading publication...

Noodle always counts identifier-free feature events for service operation. With your permission, Google Analytics can also estimate audience and engagement. Search text, publication identifiers, cookies, IP addresses and browser fingerprints are never included in Noodle's first-party event counters.

Privacy details

Article

Different alleles cause an imbalance in A2 and A2B phenotypes of the ABO blood group.

Vox sanguinis - 1 Jan 1998

Ogasawara K, Yabe R, Uchikawa M, Bannai M, Nakata K, Takenaka M, Takahashi Y, Juji T, Tokunaga K

Abstract excerpt

BACKGROUND AND OBJECTIVES: In several populations, including the Japanese, the frequency of the A2B phenotype is significantly higher than expected based on the A2 phenotype frequency. To understand the genetic basis of this 'excess' of A2B, we examined ABO alleles in individuals with A2-related...

Topics

ABO Blood-Group System
Alleles
Base Sequence
Blood Grouping and Crossmatching
Humans
Japan
Pedigree
Phenotype
Polymerase Chain Reaction
Polymorphism, Single-Stranded Conformational
Transferases

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Source

Identifiers

PMID: 9691405

Genes

ABO

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 30 Aug 2026. Prepared record publication-9691405-2026-08-30.1. Manifest publication-graph-cohort-2026-08-30.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 30 Aug 2026.

Community interpretation

Discuss the evidence

Ask a question, add context or challenge an interpretation. Community activity is separate from scientific evidence strength.

0

discussions

0

replies

Citations encouraged

Claims remain attributable.

No discussion yet

Be the first to add a careful, cited interpretation.

Related research

Semantic proximity does not establish scientific evidence.

Research trail→

Click a neighbor to travelStep 1 · 12 closest

Different alleles cause an imbalance in A2 and A2B phenotypes of the ABO blood group.PMID 9691405Read ↗

Molecular basis of the A2B in Taiwan.Semantic proximity Read ↗

[Serological characteristic and molecular basis of A2 subgroup in Shanghai population].Semantic proximity Read ↗

Identification of a novel A2 allele derived from the A transferase gene through a nucleotide substitution G539C.Semantic proximity Read ↗

Extensive polymorphism of ABO blood group gene: three major lineages of the alleles for the common ABO phenotypes.Semantic proximity Read ↗

Recombination and gene conversion-like events may contribute to ABO gene diversity causing various phenotypes.Semantic proximity Read ↗

Molecular genetic analysis of variant phenotypes of the ABO blood group system.Semantic proximity Read ↗

New and unusual O alleles at the ABO locus are implicated in unexpected blood group phenotypes.Semantic proximity Read ↗

Identification of a novel A allele with a c.102C > A variation on the ABO*A1.02 allele.Semantic proximity Read ↗

A novel ABO O allele caused by a large deletion covering two exons of the ABO gene identified in a Caucasian family showing discrepant ABO blood typing results.Semantic proximity Read ↗

Serological characteristic and molecular basis of A2 subgroup in the Chinese population.Semantic proximity Read ↗

α-1,3-N-acetylgalactose aminotransferase gene 539G>C mutation leads to the A2B isoform.Semantic proximity Read ↗

The O2 allele: questioning the phenotypic definition of an ABO allele.Semantic proximity Read ↗

⌁Select a neighboring publication to make it the new centre.