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  • 1
    Keywords: CELLS ; human ; DISTINCT ; GENE ; GENES ; PROTEIN ; PROTEINS ; COMPLEX ; DOMAIN ; SEQUENCE ; SEQUENCES ; VARIANTS ; MOUSE ; IDENTIFICATION ; PATTERNS ; PROMOTERS ; HUMAN GENOME ; LOCALIZATION ; KAPPA-B ; DOMAINS ; SUBCELLULAR-LOCALIZATION ; RE ; VARIANT ; LOCUS ; EVENTS ; OPEN READING FRAMES ; function ; SPLICING VARIANTS ; transcriptome ; MAMMALIAN GENOMES ; PRE-MESSENGER-RNA
    Abstract: We report the first genome-wide identification and characterization of alternative splicing in human gene transcripts based on analysis of the full-length cDNAs. Applying both manual and computational analyses for 56 419 completely sequenced and precisely annotated full-length cDNAs selected for the H-Invitational human transcriptome annotation meetings, we identified 6877 alternative splicing genes with 18 297 different alternative splicing variants. A total of 37 670 exons were involved in these alternative splicing events. The encoded protein sequences were affected in 6005 of the 6877 genes. Notably, alternative splicing affected protein motifs in 3015 genes, subcellular localizations in 2982 genes and transmembrane domains in 1348 genes. We also identified interesting patterns of alternative splicing, in which two distinct genes seemed to be bridged, nested or having overlapping protein coding sequences (CDSs) of different reading frames (multiple CDS). In these cases, completely unrelated proteins are encoded by a single locus. Genome-wide annotations of alternative splicing, relying on full-length cDNAs, should lay firm groundwork for exploring in detail the diversification of protein function, which is mediated by the fast expanding universe of alternative splicing variants
    Type of Publication: Journal article published
    PubMed ID: 16914452
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  • 2
    Keywords: human ; GENE ; GENES ; PROTEINS ; SEQUENCE ; ACID ; ACIDS ; NUCLEIC-ACID ; NUCLEIC-ACIDS ; DATABASE ; PREDICTION ; HUMAN GENES ; RE ; ANNOTATION ; RESOURCE ; GENOMIC DNA
    Abstract: Here we report the new features and improvements in our latest release of the H-Invitational Database (H-InvDB; http://www.h-invitational.jp/), a comprehensive annotation resource for human genes and transcripts. H-InvDB, originally developed as an integrated database of the human transcriptome based on extensive annotation of large sets of full-length cDNA (FLcDNA) clones, now provides annotation for 120 558 human mRNAs extracted from the International Nucleotide Sequence Databases (INSD), in addition to 54 978 human FLcDNAs, in the latest release H-InvDB_4.6. We mapped those human transcripts onto the human genome sequences (NCBI build 36.1) and determined 34 699 human gene clusters, which could define 34 057 (98.1%) protein-coding and 642 (1.9%) non-protein-coding loci; 858 (2.5%) transcribed loci overlapped with predicted pseudogenes. For all these transcripts and genes, we provide comprehensive annotation including gene structures, gene functions, alternative splicing variants, functional non-protein-coding RNAs, functional domains, predicted sub cellular localizations, metabolic pathways, predictions of protein 3D structure, mapping of SNPs and microsatellite repeat motifs, co-localization with orphan diseases, gene expression profiles, orthologous genes, proteinprotein interactions (PPI) and annotation for gene families. The current H-InvDB annotation resources consist of two main views: Transcript view and Locus view and eight sub-databases: the DiseaseInfo Viewer, H-ANGEL, the Clustering Viewer, G-integra, the TOPO Viewer, Evola, the PPI view and the Gene family/group.
    Type of Publication: Journal article published
    PubMed ID: 18089548
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