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Cloning and sequencing of cDNA coding for Cry j I, a major allergen of Japanese cedar pollen. 1994

T Sone, and N Komiyama, and K Shimizu, and T Kusakabe, and K Morikubo, and K Kino
Meiji Institute of Health Science, Kanagawa, Japan.

cDNA clones coding for Cry j I, a major allergen of the Japanese cedar (Cryptomeria japonica) pollen, have been isolated. Two of the clones were sequenced and found to code for a putative 21-residue signal peptide and a 353-residue mature protein with a derived molecular weight of 38.5 KDa. Five possible N-linked glycosylation sites were found in the sequence. Comparison of the nucleotide sequences of the two clones revealed sixteen nucleotide differences and these led to five amino acid exchanges in the mature allergen, indicating that an isoform of the Cry j I molecule exists. The deduced amino acid sequence of the Cry j I shows 46-48% identities with those of the Amb a I family and Amb a II, the major allergens of short ragweed. These findings should facilitate study of the structure-function relationship between the allergen and the immunocompetent cells.

UI MeSH Term Description Entries
D007564 Japan A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo. Bonin Islands
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010940 Plant Proteins Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which PLANT PROTEINS, DIETARY is available. Plant Protein,Protein, Plant,Proteins, Plant
D011058 Pollen The fertilizing element of plants that contains the male GAMETOPHYTES. Male Gametes, Plant,Male Gametophytes,Microspores, Plant,Plant Microspores,Pollen Grains,Gamete, Plant Male,Gametes, Plant Male,Gametophyte, Male,Gametophytes, Male,Grain, Pollen,Grains, Pollen,Male Gamete, Plant,Male Gametophyte,Microspore, Plant,Plant Male Gamete,Plant Male Gametes,Plant Microspore,Pollen Grain
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D000485 Allergens Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). Allergen
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D014197 Trees Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches. Tree
D015723 Gene Library A large collection of DNA fragments cloned (CLONING, MOLECULAR) from a given organism, tissue, organ, or cell type. It may contain complete genomic sequences (GENOMIC LIBRARY) or complementary DNA sequences, the latter being formed from messenger RNA and lacking intron sequences. DNA Library,cDNA Library,DNA Libraries,Gene Libraries,Libraries, DNA,Libraries, Gene,Libraries, cDNA,Library, DNA,Library, Gene,Library, cDNA,cDNA Libraries

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