What's the difference between chaperon and duenna?

Chaperon


Definition:

  • (n.) A hood; especially, an ornamental or an official hood.
  • (n.) A device placed on the foreheads of horses which draw the hearse in pompous funerals.
  • (n.) A matron who accompanies a young lady in public, for propriety, or as a guide and protector.
  • (v. t.) To attend in public places as a guide and protector; to matronize.

Example Sentences:

  • (1) The molecular chaperone GroE facilitates correct protein folding in vivo and in vitro.
  • (2) Ellen Page is to make her directorial debut with Miss Stevens, starring Anna Faris as a teacher chaperoning a mob of high school students to a state drama competition.
  • (3) According to its physical and biochemical properties, poly(L-malate) may alternatively function as a molecular chaperone in nucleosome assembly in the S phase and as both an inhibitor and a stock-piling agent of DNA-polymerase-alpha-primase in the G2 phase and M phase of the plasmodial cell cycle.
  • (4) Two proteins, P1 and P2, which are specifically altered in mammalian cell mutants resistant to antimitotic drugs, have been identified as the homologs of two members of the class of proteins known as molecular chaperones.
  • (5) In his previous job, as BBC Vision director, he made a generally favourable impression on media reporters, especially those from papers hostile to the corporation, for his willingness to attend friendly and gossipy dinners without being chaperoned by BBC minders.
  • (6) Spending time with Fred Miller, 93, and his fiancee Joan Emms, 84, veers close to chaperoning lovestruck teens.
  • (7) In the presence of HSP70s both the autoprotease and transpeptidase activities were inhibited, indicating that these chaperones can interact with nascent polypeptides and, in the cases studied here, perturb their normal structures.
  • (8) Other reasons for using a chaperone included a patient with emotional problems, a history of rape or sexual abuse, a seductive patient, an uncomfortable patient or physician, a first pelvic examination, and medicolegal issues.
  • (9) In a survey of 200 female patients attending a five-man practice in a health centre, 75 per cent of the respondents stated that they would like to be offered a chaperone at pelvic examinations.
  • (10) Complementation experiments with E. coli groE mutants showed that the chaperonin-10 and chaperonin-60 genes from the endosymbiont are expressed in E. coli and that they can function as molecular chaperones together with endogenous GroEL and GroES, respectively.
  • (11) We have previously reconstituted the soluble phase of precursor protein translocation in vitro using purified proteins (the precursor proOmpA, the chaperone SecB, and the ATPase SecA) in addition to isolated inner membrane vesicles.
  • (12) These results support the notion that both H and L chains require the chaperoning function of BiP before or during the process of antibody assembly.
  • (13) Constitutively expressed heat-shock proteins of the hsp60 and hsp70 families, classified as 'molecular chaperones', have important functions in the folding and intracellular sorting of newly-synthesized proteins.
  • (14) This sequential mechanism of chaperone action may represent an important pathway for the folding of newly synthesized polypeptides.
  • (15) At times the tightly chaperoned tour already felt as if National Lampoon’s Cuban Vacation had been scripted by over-earnest communist officials.
  • (16) These findings demonstrate that the GdnHCl denaturation of complex polymeric proteins is unlikely to follow a reversible two-state denaturation pathway, and support the involvement of a chaperone-like protein in the folding and assembly of the fimbriae in vivo.
  • (17) The only exit from chaperones and chilblains was marriage.
  • (18) The medical literature contains no consistent recommendations regarding chaperon practices during physical examination of patients.
  • (19) We investigated whether in vivo holoenzyme formation was influenced by the association of the apoenzyme with cellular chaperones.
  • (20) The level of awareness of clinical teaching was poor and examination of women patients without a chaperone caused distress and should be rectified.

Duenna


Definition:

  • (n.) The chief lady in waiting on the queen of Spain.
  • (n.) An elderly lady holding a station between a governess and companion, and appointed to have charge over the younger ladies in a Spanish or a Portuguese family.
  • (n.) Any old woman who is employed to guard a younger one; a governess.

Example Sentences:

Words possibly related to "duenna"