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Descriptor in English: Pili, Sex
Descriptor in Spanish: Pili Sexual
Descriptor in Portuguese: Pili Sexual
Descriptor in French: Pili sexuels
Entry term(s): Conjugative Pili
Conjugative Pilus
Pili, Conjugative
Pilus, Conjugative
Pilus, Sex
Sex Pili
Sex Pilus
Tree number(s): A11.284.180.690
A20.867
Scope note: Filamentous or elongated proteinaceous structures which extend from the cell surface in gram-negative bacteria that contain certain types of conjugative plasmid. These pili are the organs associated with genetic transfer and have essential roles in conjugation. Normally, only one or a few pili occur on a given donor cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed, p675) This preferred use of "pili" refers to the sexual appendage, to be distinguished from bacterial fimbriae (FIMBRIAE, BACTERIAL), also known as common pili, which are usually concerned with adhesion.
Annotation: do not confuse with COMMON PILI see FIMBRIAE, BACTERIAL
Allowable Qualifiers: CH chemistry
CL classification
DE drug effects
EN enzymology
GE genetics
IM immunology
ME metabolism
MI microbiology
PA pathology
PH physiology
PS parasitology
RE radiation effects
TR transplantation
UL ultrastructure
VI virology
History Note: 95
See also the descriptors: Conjugation, Genetic MeSH
DeCS UI: 22615
Descriptor UI: D018933
Date Established: 1995/01/01
Date of Entry: 1994/10/25
Revision Date: 2009/07/06
Pili, Sex - Preferred
Concept UI M0028302
Scope note Filamentous or elongated proteinaceous structures which extend from the cell surface in gram-negative bacteria that contain certain types of conjugative plasmid. These pili are the organs associated with genetic transfer and have essential roles in conjugation. Normally, only one or a few pili occur on a given donor cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed, p675) This preferred use of "pili" refers to the sexual appendage, to be distinguished from bacterial fimbriae (FIMBRIAE, BACTERIAL), also known as common pili, which are usually concerned with adhesion.
Preferred term Pili, Sex
Entry term(s) Conjugative Pili
Conjugative Pilus
Pili, Conjugative
Pilus, Conjugative
Pilus, Sex
Sex Pili
Sex Pilus



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