rdf:type |
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lifeskim:mentions |
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pubmed:issue |
7
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pubmed:dateCreated |
2006-6-19
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pubmed:abstractText |
Scytovirin (SVN) is a novel anti-HIV protein isolated from aqueous extracts of the cultured cyanobacterium Scytonema varium. SVN contains two apparent domains, one comprising amino acids 1-48 and the second stretching from amino acids 49 to 95. These two domains display significant homology to each other and a similar pattern of disulfide bonds. Two DNA constructs encoding scytovirin 1-48 (Cys7Ser) (SD1) and 49-95 (Cys55Ser) (SD2) were constructed, and expressed in E. coli, with thioredoxin fused to their N-terminus. Purified recombinant products were tested for binding activities with the HIV surface envelope glycoproteins gp120 and gp41. Whole cell anti-HIV data showed that SD1 had similar anti-HIV activity to the full-length SVN, whereas SD2 had significantly less anti-HIV activity. Further deletion mutants of the SD1 domain (SVN(3-45)Cys7Ser, SVN(6-45)Cys7Ser, SVN(11-45)Cys7Ser) showed that the N-terminal residues are necessary for full anti-HIV activity of SD1 and that an eight amino acid deletion from the C-terminus (SVN(1-40)Cys7Ser) had a significant effect, decreasing the anti-HIV activity of SD1 by approximately five-fold.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Anti-HIV Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/Disulfides,
http://linkedlifedata.com/resource/pubmed/chemical/HIV Envelope Protein gp120,
http://linkedlifedata.com/resource/pubmed/chemical/HIV Envelope Protein gp41,
http://linkedlifedata.com/resource/pubmed/chemical/Lectins,
http://linkedlifedata.com/resource/pubmed/chemical/Peptides,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Fusion Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/scytovirin protein, S varium
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0196-9781
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
27
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1668-75
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:16647158-Amino Acid Sequence,
pubmed-meshheading:16647158-Anti-HIV Agents,
pubmed-meshheading:16647158-Bacterial Proteins,
pubmed-meshheading:16647158-Carrier Proteins,
pubmed-meshheading:16647158-DNA,
pubmed-meshheading:16647158-Disulfides,
pubmed-meshheading:16647158-Escherichia coli,
pubmed-meshheading:16647158-HIV Envelope Protein gp120,
pubmed-meshheading:16647158-HIV Envelope Protein gp41,
pubmed-meshheading:16647158-Lectins,
pubmed-meshheading:16647158-Molecular Sequence Data,
pubmed-meshheading:16647158-Peptides,
pubmed-meshheading:16647158-Protein Structure, Tertiary,
pubmed-meshheading:16647158-Recombinant Fusion Proteins,
pubmed-meshheading:16647158-Sequence Analysis, DNA
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pubmed:year |
2006
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pubmed:articleTitle |
Potent anti-HIV activity of scytovirin domain 1 peptide.
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pubmed:affiliation |
Molecular Targets Development Program, National Cancer Institute-Frederick, National Institutes of Health, Bldg 562/Rm 201, Fort Detrick, Frederick, MD 21702, USA.
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pubmed:publicationType |
Journal Article,
Research Support, N.I.H., Intramural
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