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A single amino acid exchange shifts the serological reactivity of the novel HLA-B*4442 allele product from HLA-B44 to HLA-B21.

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F06%3A00003151" target="_blank" >RIV/61989592:15110/06:00003151 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    A single amino acid exchange shifts the serological reactivity of the novel HLA-B*4442 allele product from HLA-B44 to HLA-B21.

  • Original language description

    A novel HLA-B (human leukocyte antigen-B) allele, HLAB*4442, was identified both in a Czech patient with leukaemia and in his mother. The presence of a novel allele was initially suspected because conflicting results were obtained by serological and DNAtyping techniques. The HLA typing using the polymerase chain reaction-sequence-specific primers (PCR-SSP) at the two-digit level indicated an allele belonging to the HLA-B*44 group, whereas serological typing indicated HLA-B21. Typing with PCR-sequence-specific oligonucleotides (PCR-SSO) resulted in a unique reaction pattern that could not be assigned to a known allele, PCR-SSP typing at the four-digit level did not match any known B*44 allele, either. The sequencing-based typing of the HLA-B locus thenrevealed the novel B*4442 allele that is identical with B*4405 except a single C&#8594;G nucleotide exchange at position 572. This exchange results in an amino acid substitution from serine to tryptophan at position 167 of the expressed

  • Czech name

    Záměna jedné aminokyseliny produktu HLA-B*4442 alely vede k posunu serologické aktivity od HLA-B44 k HLA-B21

  • Czech description

    Nová HLA-B alela, HLAB*4442, byla identifikována u českého pacienta s leukémií a jeho matky. Přítomnost této nové alely byla předpokládána, protože serologické výsledky neodpovídaly DNA typizačním technikám. HLA typizace používající PCR-SSP (polymerase chain reaction-sequence-specific primers) naznačila alelu HLA-B*44 skupiny, zatímco serologická typizace ukazovala na HLA-B21. PCR-SSO (PCR-sequence-specific oligonucleotides) vedla k unikátnímu modelu, který nebyl popsaný u žádné se známých alal. PCR-SSPna 4 desetinná místa neoznačila žádnou se známých B*44 allele. Sekvence HLA-B lokusu odhalila novou B*4442 allelu, která je identická s B*4405 a vede k C&#8594;G nukleotidové výměně v pozici 572. Tato nukleotidová záměna způsobuje substituci serinu za tryptofan v pozici 167 a expresi HLA-B proteinu. B21 serologická reaktivita nového produktu B*4442 alely byla potvrzena dalším serologickým panelem typizačního sera. Naše výsledky potvrdily, že přítomnost serinu v pozici 167 alfa-2 domény

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EC - Immunology

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/NR9099" target="_blank" >NR9099: Association of selected immunogenetic factors with the haematopoietic stem cell transplantation outcome - prediction of transplant complication risk</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    International Journal of Immunogenetics

  • ISSN

    1744-3121

  • e-ISSN

  • Volume of the periodical

    33

  • Issue of the periodical within the volume

    33

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    4

  • Pages from-to

    197-200

  • UT code for WoS article

  • EID of the result in the Scopus database