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Literature DB >> 8536320

Intron-encoded open reading frame of the GIY-YIG subclass in a plastid gene.

Abstract

Group-I introns, containing open reading frames (ORFs) that code for homing endonucleases, are widely distributed amongst eukaryotic organellar genomes. However, endonucleases of the GIY-YIG subclass have a restricted distribution in mitochondria and bacteriophages, and have never been observed in plastids. We have found the GIY-YIG motif in an intronic ORF within the previously published psbA gene sequence from Chlamydomonas reinhardtii chloroplasts. Based on phylogenetic analysis and an evaluation of amino-acid substitutions, this ORF is not closely related to any of the other GIY-YIG ORFs. These results suggest that GIY-YIG ORFs have a longer evolutionary history than previously assumed.

Entities: Gene Species

Mesh：

Substances：

Year: 1995 PMID： 8536320 DOI： 10.1007/bf00311888

Source DB: PubMed Journal: Curr Genet ISSN： 0172-8083 Impact factor: 3.886

12 in total

Review 1. Protein introns: a new home for endonucleases.

Authors: D A Shub; H Goodrich-Blair
Journal: Cell Date: 1992-10-16 Impact factor: 41.582

2. Basic local alignment search tool.

Authors: S F Altschul; W Gish; W Miller; E W Myers; D J Lipman
Journal: J Mol Biol Date: 1990-10-05 Impact factor: 5.469

3. Identification of a family of bacteriophage T4 genes encoding proteins similar to those present in group I introns of fungi and phage.

Authors: M Sharma; R L Ellis; D M Hinton
Journal: Proc Natl Acad Sci U S A Date: 1992-07-15 Impact factor: 11.205

4. A maturase-like coding sequence downstream of the OXI2 gene of yeast mitochondrial DNA is interrupted by two GC clusters and a putative end-of-messenger signal.

Authors: F Michel
Journal: Curr Genet Date: 1984-05 Impact factor: 3.886

Review 5. Group I introns as mobile genetic elements: facts and mechanistic speculations--a review.

Authors: B Dujon
Journal: Gene Date: 1989-10-15 Impact factor: 3.688

6. Nucleotide sequence and secondary structure of the chloroplast group I intron Cr.psbA-2: novel features of this self-splicing ribozyme.

Authors: Y Bao; D L Herrin
Journal: Nucleic Acids Res Date: 1993-04-11 Impact factor: 16.971

7. A site-specific endonuclease encoded by a typical archaeal intron.

Authors: J Z Dalgaard; R A Garrett; M Belfort
Journal: Proc Natl Acad Sci U S A Date: 1993-06-15 Impact factor: 11.205

8. Interspecific transfer of mitochondrial genes in fungi and creation of a homologous hybrid gene.

Authors: B Paquin; M J Laforest; B F Lang
Journal: Proc Natl Acad Sci U S A Date: 1994-12-06 Impact factor: 11.205

9. Incipient mitochondrial evolution in yeasts. II. The complete sequence of the gene coding for cytochrome b in Saccharomyces douglasii reveals the presence of both new and conserved introns and discloses major differences in the fixation of mutations in evolution.

Authors: G L Tian; F Michel; C Macadre; P P Slonimski; J Lazowska
Journal: J Mol Biol Date: 1991-04-20 Impact factor: 5.469