title: Construction of Japanese BAC library Yamato-2 (JY2): a set of 330K clone resources of damage-minimized DNA taken from a genetically established Japanese individual.
abstract: A bacterial artificial chromosome (BAC) library referred to as Yamato-2 (JY2), was constructed from a Japanese individual and contained 330,000 clones. Library construction was based on 2 concepts: Japanese pedigree and non-immortalization. Genomic DNA was extracted from white blood cells from umbilical cord blood of a Japanese male individual. Four traits of the sample, (1) amelogenin DNA, (2) short tandem repeat (STR), (3) mitochondrial DNA (mtDNA), and (4) HLA-allele typing, were investigated to verify attribution of the donor. One of the samples with quite good Japanese characteristics was named JY2 and used as a resource for construction of a BAC library. Amelogenin DNA indicated male. STR indicated Mongoloid. MtDNA suggested haplogroup B, which is different from any other diploid whose sequence has been reported. The HLA gene was classified into east-Asian specific haplotype. These results revealed that JY2 was obtained from a Japanese male. We sequenced both ends of 185,012 BAC clones. By using the BLAST search, BAC end sequences (BESs) were mapped on the human reference sequence provided by NCBI. Inserts of individual BAC clones were mapped with both ends properly placed. As a result, 103,647 BAC clones were successfully mapped. The average insert size of BAC calculated from the mapping information was 130 kb. Coverage and redundancy of the reference sequence by successfully mapped BAC clones were 96.4% and 3.9-fold, respectively. This library will be especially suitable as a Japanese standard genome resource. The availability of an accurate library is indispensable for diagnostics or drug-design based on genome information, and JY2 will provide an accurate sequence of the Japanese genome as an important addition to the human genome.
authors: Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.
authors: Yasunobu
authors: Y
authors: Terabayashi
authors: Keiko
authors: K
authors: Morita
authors: Joon Young
authors: JY
authors: Park
authors: Soichiro
authors: S
authors: Saito
authors: Takashi
authors: T
authors: Shiina
authors: Hidetoshi
authors: H
authors: Inoko
authors: Isamu
authors: I
authors: Ishiwata
authors: Kazuhiro E
authors: KE
authors: Fujimori
authors: Takashi
authors: T
authors: Hirano
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