Bibliographic Citation
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| Title | Structure and chromosomal localization of the GPI-anchor synthesis gene PIGF and its pseudogene {Psi}PIGF |
| Creator/Author | Ohishi, Kazuhito ; Inoue, Norimitsu ; Endo, Yuichi [Osaka Univ. (Japan)] [and others] |
| Publication Date | 1995 Oct 10 |
| OSTI Identifier | OSTI ID: 443888 |
| Other Number(s) | Journal ID: GNMCEP; ISSN 0888-7543; TRN: TRN: 96:006145-0038 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Genomics; Journal Volume: 29; Journal Issue: 3; Other Information: PBD: 10 Oct 1995 |
| Subject | 55 BIOLOGY AND MEDICINE, BASIC STUDIES; HUMAN CHROMOSOME 5; GENETIC MAPPING; HUMAN X CHROMOSOME; GLYCOLIPIDS; DNA-CLONING; GENE MUTATIONS; BIOSYNTHESIS; MUTATION FREQUENCY; STRUCTURE-ACTIVITY RELATIONSHIPS; STEM CELLS; SOMATIC MUTATIONS; HUMAN CHROMOSOME 2; MEMBRANE PROTEINS; HEREDITARY DISEASES; HEMIC DISEASES; AMINO ACID SEQUENCE; DNA HYBRIDIZATION; FLUORESCENCE |
| Description/Abstract | Posttranslational modification by the GPI glycolipid anchor is essential for the surface expression of many membrane proteins. Defect of GPI biosynthesis due to somatic mutation in the hematopoietic stem cell is the basis for an acquired genetic disease, paroxysmal nocturnal hemoglobinuria (PNH). Previously, an X-linked gene PIGA (phosphatidylinositol glycan class A), which participates in the first step of the biosynthesis, was shown to be mutated in abnormal cells from all 60 patients with PNH. The cDNA of another GPI synthesis gene PIGF was previously cloned, but it is not involved in pathogenesis of PNH. In the present study, we have analyzed PIGF genomic clones. The PIGF gene contained six exons spanning about 40 kb and was located to the short arm of chromosome 2 at 2p16-p21. The frequency of mutations on both alleles of PIGF should be much lower than that of mutation in the X-linked PIGA, accounting for a lack of involvement of PIGF in PNH. We also identified the processed pseudogene of PIGF ({psi}PIGF) and mapped it to 5q35. 13 refs., 3 figs. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: pp. 804-807 |
| System Entry Date | 2008 Feb 04 |
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