Document Detail

The cyanelle genome of Cyanophora paradoxa encodes ribosomal proteins not encoded by the chloroplasts genomes of higher plants.
MedLine Citation:
PMID:  2403527     Owner:  NLM     Status:  MEDLINE    
The rpl35, rpl20, rpl5, rps8, and a portion of the rpl6 genes of the cyanelle genome of Cyanophora paradoxa have been cloned, mapped and sequenced. Homologs of the rpl35, rpl5, and rpl6 genes are not found in the chloroplasts of higher plants. The rpl35 genes most likely form a dicistronic operon which is located upstream from the apcE-apcA-apcB locus of the cyanelle and which is divergently transcribed from this locus. The rpl5, rpl8, and rpl6 genes probably form a part of a larger cluster of genes encoding components of the cyanellar ribosomes. These genes are organized in a fashion similar to that observed in all procaryotes examined to date, with the exception that the rps14 gene is not found between the rpl5 and rps8 coding sequences. Hypotheses concerning the origins of cyanelles and chloroplasts are discussed.
D A Bryant; V L Stirewalt
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  FEBS letters     Volume:  259     ISSN:  0014-5793     ISO Abbreviation:  FEBS Lett.     Publication Date:  1990 Jan 
Date Detail:
Created Date:  1990-02-08     Completed Date:  1990-02-08     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0155157     Medline TA:  FEBS Lett     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  273-80     Citation Subset:  IM    
Dept. of Molecular and Cell Biology, Pennsylvania State University, University Park 16802.
Data Bank Information
Bank Name/Acc. No.:
GENBANK/X16548;  X17063
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MeSH Terms
Algae / genetics*
Amino Acid Sequence
Base Sequence
Chloroplasts / metabolism*
Cloning, Molecular
Escherichia coli / genetics
Molecular Sequence Data
Mycoplasma / genetics
Organelles / metabolism*
Plants / genetics*
Restriction Mapping
Ribosomal Proteins / genetics*
Sequence Homology, Nucleic Acid
Grant Support
Reg. No./Substance:
0/Ribosomal Proteins

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