PMID- 2685018
OWN - NLM
STAT- MEDLINE
DCOM- 19900109
LR  - 20210526
IS  - 0095-1137 (Print)
IS  - 1098-660X (Electronic)
IS  - 0095-1137 (Linking)
VI  - 27
IP  - 10
DP  - 1989 Oct
TI  - Virulence factors and biochemical characteristics of serotypes of Escherichia 
      coli serogroup O29.
PG  - 2161-4
AB  - Escherichia coli strains belonging to serogroup O29 were studied. Invasiveness 
      was the most common virulence factor described in this serogroup, but a few 
      papers also reported production of heat-stable (ST) enterotoxin. In the present 
      study invasive ability was found in O29:H- strains, whereas production of ST-I 
      enterotoxin was observed only in serotype O29:H21 strains, showing that virulence 
      was a characteristic of specific serotypes or bioserotypes within the O29 
      serogroup. Different serotypes were found among strains that were neither 
      invasive nor toxigenic. Invasive strains were biochemically less active than the 
      toxigenic ones and presented the invasiveness plasmid (pINV) of about 120 to 140 
      megadaltons, whereas hybridization tests showed that ST-I production was related 
      to a plasmid of about 90 megadaltons. A diffuse adherence pattern to HeLa cells 
      was observed in all ST-I isolates, but the role of this adherence in the 
      pathogenicity of these strains was not determined. Thus, a unique biochemical 
      pattern and plasmid profile may be useful characteristics to distinguish between 
      pathogenic (toxigenic or invasive) and nonpathogenic O29 strains.
FAU - Guth, B E
AU  - Guth BE
AD  - Department of Microbiology, Immunology, and Parasitology, Escola Paulista de 
      Medicina, Sao Paulo, Brazil.
FAU - Silva, R M
AU  - Silva RM
FAU - Toledo, M R
AU  - Toledo MR
FAU - Lima, T M
AU  - Lima TM
FAU - Trabulsi, L R
AU  - Trabulsi LR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Clin Microbiol
JT  - Journal of clinical microbiology
JID - 7505564
RN  - 0 (Antigens, Bacterial)
RN  - 0 (Bacterial Toxins)
RN  - 0 (Enterotoxins)
RN  - 0 (Escherichia coli Proteins)
RN  - 0 (H antigen)
RN  - 0 (heat stable toxin (E coli))
SB  - IM
MH  - Antigens, Bacterial
MH  - Bacterial Adhesion
MH  - Bacterial Toxins/biosynthesis
MH  - Enterotoxins/biosynthesis
MH  - Escherichia coli/*classification/metabolism/pathogenicity
MH  - Escherichia coli Proteins
MH  - Plasmids
MH  - Serotyping
MH  - Virulence
PMC - PMC266985
EDAT- 1989/10/01 00:00
MHDA- 1989/10/01 00:01
PMCR- 1989/10/01
CRDT- 1989/10/01 00:00
PHST- 1989/10/01 00:00 [pubmed]
PHST- 1989/10/01 00:01 [medline]
PHST- 1989/10/01 00:00 [entrez]
PHST- 1989/10/01 00:00 [pmc-release]
AID - 10.1128/jcm.27.10.2161-2164.1989 [doi]
PST - ppublish
SO  - J Clin Microbiol. 1989 Oct;27(10):2161-4. doi: 10.1128/jcm.27.10.2161-2164.1989.