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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1989-3-22
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pubmed:abstractText |
Induction of axonal neuritogenesis in NB2a/d1 cells was associated with an increased content of neurofilament proteins (NFPs) by immunoblot analysis. The major NFP subunits in differentiated [NB2a(+)] cells included microheterogenous forms with apparent molecular weights of 200-190 kDa (NFP-H), 143-142 kDa (NFP-M) and 70 kDa (NFP-L) on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Only NFP-L was detected in cytoskeletal preparations of undifferentiated [NB2a(-)] cells. All three NFPs of NB2a(+) cells incorporated 32P-orthophosphate in intact cells. A 160/155 kDa NFP-H immunoreactive polypeptide in NB2a(-) and NB2a(+) cells represented a relatively unmodified form of the 200 kDa NFP-H, since dephosphorylation of the 200 kDa NFP-H in vitro with alkaline phosphatase generated the 160/155 kDa forms. Triton-extracted NB2a(+) cells displayed NFP-H immunoreactivity in neurites and occasionally in perikaryal regions at the base of neurites. NFP-M was present throughout the neurites and somata of NB2a(+) cells, and was regularly detected in portions of perikarya in NB2a(-) cells. NFP-L immunoreactivity was distributed throughout the Triton-insoluble cytoskeleton of NB2a(-) and NB2a(+) cells. Immunocytochemical analyses revealed that extensively phosphorylated forms of NFP-H were largely restricted to the neurites of NB2a(+) cells, and less modified forms predominated throughout both perikarya and neurites of NB2a(-) and NB2a(+) cells.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
471
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
97-109
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3146407-Animals,
pubmed-meshheading:3146407-Antibodies, Monoclonal,
pubmed-meshheading:3146407-Axons,
pubmed-meshheading:3146407-Cell Differentiation,
pubmed-meshheading:3146407-Cell Line,
pubmed-meshheading:3146407-Cytoskeleton,
pubmed-meshheading:3146407-Immunoenzyme Techniques,
pubmed-meshheading:3146407-Intermediate Filament Proteins,
pubmed-meshheading:3146407-Mice,
pubmed-meshheading:3146407-Microscopy, Electron,
pubmed-meshheading:3146407-Molecular Weight,
pubmed-meshheading:3146407-Neuroblastoma,
pubmed-meshheading:3146407-Neurofilament Proteins,
pubmed-meshheading:3146407-Protein Processing, Post-Translational
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pubmed:year |
1988
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pubmed:articleTitle |
Neurofilament triplet proteins of NB2a/d1 neuroblastoma: posttranslational modification and incorporation into the cytoskeleton during differentiation.
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pubmed:affiliation |
Ralph Lowell Laboratories, Mailman Research Center McLean Hospital, Belmont, MA 02178.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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