Sequence of a phosphorylation site in nucleolar protein B23.
Biochim Biophys Acta
; 667(1): 209-12, 1981 Jan 30.
Article
em En
| MEDLINE
| ID: mdl-7213797
ABSTRACT
The sites of phosphorylation in protein B23, a silver-staining preribosomal ribonucleoprotein particle protein, were analyzed by tryptic peptide mapping. Three 32P peptides were found using in vitro labeling of nucleoli. An additional unlabeled phosphopeptide was identified by amino acid analysis. The sequence of the latter was Asp-Thr(P)-Pro-Ala-Lys. These results suggest that protein B23 contains one class of site labeled rapidly in vitro and another type of site phosphorylated only in vivo.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ribonucleoproteínas
/
Proteínas Nucleares
/
Nucléolo Celular
/
Nucleoproteínas
Idioma:
En
Ano de publicação:
1981
Tipo de documento:
Article