My NCBI | Sign In
RSS Settings
  • Search:

Display Settings:

Format

Send to:

Choose Destination

    Nat Struct Biol. 2002 Sep;9(9):685-90.

    The structural basis for specificity in human ABO(H) blood group biosynthesis.

    Patenaude SI, Seto NO, Borisova SN, Szpacenko A, Marcus SL, Palcic MM, Evans SV.

    Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, K1H 8M5 Canada.

    The human ABO(H) blood group antigens are produced by specific glycosyltransferase enzymes. An N-acetylgalactosaminyltransferase (GTA) uses a UDP-GalNAc donor to convert the H-antigen acceptor to the A antigen, whereas a galactosyltransferase (GTB) uses a UDP-galactose donor to convert the H-antigen acceptor to the B antigen. GTA and GTB differ only in the identity of four critical amino acid residues. Crystal structures at 1.8-1.32 A resolution of the GTA and GTB enzymes both free and in complex with disaccharide H-antigen acceptor and UDP reveal the basis for donor and acceptor specificity and show that only two of the critical amino acid residues are positioned to contact donor or acceptor substrates. Given the need for stringent stereo- and regioselectivity in this biosynthesis, these structures further demonstrate that the ability of the two enzymes to distinguish between the A and B donors is largely determined by a single amino acid residue.

    PMID: 12198488 [PubMed - indexed for MEDLINE]

    Publication Types, MeSH Terms, Substances, Secondary Source ID

    Publication Types:

    MeSH Terms:

    Substances:

    Secondary Source ID:

    LinkOut - more resources

    Full Text Sources:

    Other Literature Sources:

    Supplemental Content

    Click here to read

    Related articles

    Cited by 6 PubMed Central articles

    Structures reported by this article

    All links from this record

    • Related Articles

      Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.

    • Compound (MeSH Keyword)

      PubChem chemical compound records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.

    • Gene

      Gene records that cite the current articles. Citations in Gene are added manually by NCBI or imported from outside public resources.

    • HomoloGene

      HomoloGene clusters of homologous genes and sequences that cite the current articles. These are references on the Gene and sequence records in the HomoloGene entry.

    • Nucleotide

      Primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.

    • Nucleotide (RefSeq)

      NCBI nucleotide Reference Sequences (RefSeqs) that are cited in the current articles, included in the corresponding Gene Reference into Function, or that include the PubMed articles as references.

    • Nucleotide (Weighted)

      Nucleotide records associated with the current articles through the Gene database. These are the related sequences on the Gene record that are added manually by NCBI.

    • OMIM (calculated)

      Online Mendelian Inheritance in Man (OMIM) records that include the current articles as references in the light bulb links within or in the citations at the end of the OMIM record. The references available through the light bulb link are collected using the PubMed related articles algorithm to identify records with similar terminology to the OMIM record.

    • Protein (RefSeq)

      NCBI protein Reference Sequences (RefSeqs) that are cited in the current articles, included in the corresponding Gene Reference into Function, or that include the PubMed articles as references.

    • Protein (Weighted)

      Protein records associated with the current articles through related Gene database records. These are the related sequences on the Gene record that are added manually by NCBI.

    • Protein Clusters

      Clusters of related proteins from the Protein Clusters database that cite the current articles. Sources of references in Protein Clusters include the associated Gene and Conserved Domain records as well as NCBI added citations.

    • Substance (MeSH Keyword)

      PubChem chemical substance (submitted) records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.

    • Taxonomy via GenBank

      Taxonomy records associated with the current articles through taxonomic information on related molecular database records (Nucleotide, Protein, Gene, SNP, Structure).

    • UniGene

      UniGene clusters of expressed sequences that are associated with the current articles through references on the clustered sequence records and related Gene records.

    • Domains

      Conserved Domain Database (CDD) records that cite the current articles. Citations are from the CDD source database records (PFAM, SMART).

    • Protein

      Protein translation features of primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.

    • Structure

      Three-dimensional structure records in the NCBI Structure database for data reported in the current articles.

    • 3D Domains

      Structural domains in the NCBI Structure database that are parts of the 3D structures reported in the current articles.

    • GEO Profiles

      Gene Expression Omnibus (GEO) Profiles of molecular abundance data. The current articles are references on the Gene record associated with the GEO profile.

    • Cited in PMC

      Full-text articles in the PubMed Central Database that cite the current articles.

    Recent activity