IDENTIFICATION AND TYPING OF PROTEUS-PENNERI AND PROTEUS-VULGARIS BIOGROUP-2 AND BIOGROUP-3, FROM CLINICAL SOURCES, BY COMPUTERIZED ANALYSIS OF ELECTROPHORETIC PROTEIN-PATTERNS

被引:9
作者
COSTAS, M
HOLMES, B
FRITH, KA
RIDDLE, C
HAWKEY, PM
机构
[1] CTR DIS CONTROL,HOSP INFECT PROGRAM,ATLANTA,GA 30333
[2] UNIV LEEDS,DEPT MICROBIOL,LEEDS,W YORKSHIRE,ENGLAND
来源
JOURNAL OF APPLIED BACTERIOLOGY | 1993年 / 75卷 / 05期
关键词
D O I
10.1111/j.1365-2672.1993.tb02806.x
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Seventy-six strains of the Proteus vulgaris complex (Pr. penneri and Pr. vulgaris biogroups 2 and 3) were characterized by one-dimensional SDS-PAGE of cellular proteins. The protein patterns were highly reproducible. The strains came from various countries and were mainly of human origin: urine (28), respiratory tract (13), wounds (8), faeces (7), blood (3), miscellaneous sources (6) and unknown sources (11). The patterns of these strains, together with those of the type strains of seven Morganella, Proteus and Providencia species were subjected to two numerical analyses. In the first, in which the principal protein bands (in the 35.0-42.0 kDa range) were excluded, the strains of the Pr. vulgaris complex formed four clusters at the 83% similarity level. These corresponded to Pr. penneri, Pr. vulgaris biogroup 2, and two clusters (3a and 3b) represented biogroup 3. Each of these clusters was distinct from the Morganella, Proteus and Providencia reference strains. In the second analysis, which included all the protein bands, the 41 Pr. penneri strains showed little heterogeneity but 17 subphenons could be recognized among the 35 strains of Pr. vulgaris biogroups 2 and 3. These results support the division of biogroup 3 strains into at least two separate taxa. Other results indicate that biogroup 3 is heterogeneous and may contain further genomic groups. The method also provides a basis for typing clinical strains of Pr. vulgaris biogroups 2 and 3.
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页码:489 / 498
页数:10
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