Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen

Morishita, R. ; Masuda, K. ; Niwa, M. ; Kato, K. ; Asano, T.

Amsterdam : Elsevier
ISSN:
0006-291X
Source:
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:
Biology
Chemistry and Pharmacology
Physics
Type of Medium:
Electronic Resource
URL:
_version_ 1798292265062367232
autor Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
autorsonst Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
book_url http://dx.doi.org/10.1006/bbrc.1993.1953
datenlieferant nat_lic_papers
fussnote We reported previously that G proteins from bovine spleen contain at least five forms of the γ subunit (designated S1 through S5), among which S1 and S5 have been identified as novel γ and γ"2 subunits, respectively. In this study, we identified the other three forms of the γ subunit, namely, S2, S3 and S4. Amino acid sequences of proteolytic fragments obtained from S2, S3 and S4 coincided exactly with internal sequences of γ"7, γ"5 and γ"2, respectively. However, sequence analysis of undigested S4 revealed that S4 was an N-terminally truncated form of γ"2 while analysis of the C-terminal fragment by fast atom bombardment mass spectrometry revealed that the C-terminus of S4 seemed to be geranylgeranylated and carboxymethylated as is that of intact γ"2. Thus, the three types of γ subunit obtained from bovine spleen were identified as γ"7, γ"5, and an N-terminally truncated γ"2.
hauptsatz hsatz_simple
identnr NLZ183485718
issn 0006-291X
journal_name Biochemical and Biophysical Research Communications
materialart 1
package_name Elsevier
publikationsort Amsterdam
publisher Elsevier
reference 194 (1993), S. 1221-1227
search_space articles
shingle_author_1 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
shingle_author_2 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
shingle_author_3 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
shingle_author_4 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
shingle_catch_all_1 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
0006-291X
0006291X
Elsevier
shingle_catch_all_2 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
0006-291X
0006291X
Elsevier
shingle_catch_all_3 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
0006-291X
0006291X
Elsevier
shingle_catch_all_4 Morishita, R.
Masuda, K.
Niwa, M.
Kato, K.
Asano, T.
Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
0006-291X
0006291X
Elsevier
shingle_title_1 Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
shingle_title_2 Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
shingle_title_3 Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
shingle_title_4 Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
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source_archive Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
timestamp 2024-05-06T08:45:46.477Z
titel Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
titel_suche Identification of Three Forms of the γ Subunit of G Proteins Isolated from Bovine Spleen
We reported previously that G proteins from bovine spleen contain at least five forms of the γ subunit (designated S1 through S5), among which S1 and S5 have been identified as novel γ and γ"2 subunits, respectively. In this study, we identified the other three forms of the γ subunit, namely, S2, S3 and S4. Amino acid sequences of proteolytic fragments obtained from S2, S3 and S4 coincided exactly with internal sequences of γ"7, γ"5 and γ"2, respectively. However, sequence analysis of undigested S4 revealed that S4 was an N-terminally truncated form of γ"2 while analysis of the C-terminal fragment by fast atom bombardment mass spectrometry revealed that the C-terminus of S4 seemed to be geranylgeranylated and carboxymethylated as is that of intact γ"2. Thus, the three types of γ subunit obtained from bovine spleen were identified as γ"7, γ"5, and an N-terminally truncated γ"2.
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