Amino acid compostion of walls from single and filamentous cells of Clostridium acidiurici.

Abstract:

:Gaffar, Abdul (Brigham Young University, Provo, Utah), David R. Terry, and Richard D. Sagers. Amino acid composition of walls from single and filamentous cells of Clostridium acidiurici. J. Bacteriol. 91:1618-1624. 1966.-The walls from single and filamentous cells of Clostridium acidiurici were shown to contain 11 amino acids: aspartic acid, serine, glutamic acid, proline, d-alanine, glycine, valine, methionine, valine, leucine, phenylalanine, and lysine. In the walls from cells grown at 37 C, d-alanine was the amino acid present in largest quantity, but in the walls from cells grown at 44 C there was a 50% reduction in the d-alanine content while the levels of the other amino acids were unchanged. Filamentous cells grown at 44 C, then brought to 37 C and transferred to fresh medium, fragmented into short cells within 30 min. Alanine racemase activity was the same in extracts from cells grown at both 37 and 44 C, suggesting that this enzyme was not the major controlling factor in the low content of d-alanine in filaments grown at 44 C. Spent medium from cultures grown at 44 C contained a significant amount of d-alanine, whereas there was no evidence of this amino acid in the spent medium from cultures grown at 37 C.

journal_name

J Bacteriol

journal_title

Journal of bacteriology

authors

Gaffar A,Terry DR,Sagers RD

doi

10.1128/JB.91.4.1618-1624.1966

subject

Has Abstract

pub_date

1966-04-01 00:00:00

pages

1618-24

issue

4

eissn

0021-9193

issn

1098-5530

journal_volume

91

pub_type

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