(n.) The hollow stalk of an umbelliferous plant, such as the cow parsnip or the hemlock.
Example Sentences:
Kex
Definition:
(n.) A weed; a kecksy.
(n.) A dry husk or covering.
Example Sentences:
(1) Since the protective protein possesses extensive sequence homology with carboxypeptidase Y (carb Y) and the KEX 1 gene product from yeast, we have used the artificial substrate N-CBZ-Phe-Leu to detect and characterize the peptidase activity of the lysosomal carboxypeptidase (carb L).
(2) To study the molecular mechanisms involved in polyprotein processing, we have transfected the yeast KEX-2 gene into mouse NIH 3T3 fibroblasts and established a new cell line (called 2N-DK) where the KEX-2 endoprotease is permanently expressed.
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(4) The first-order rates are compared with that of a fourth variant Phe82----Gly which has been measured previously (E0 = 220 mV, kex = 0.7 s-1).
(5) While the mammalian endoproteases responsible for these cleavages are yet to be identified, this function has been unequivocally assigned in yeast to the product of the KEX-2 gene.
(6) The evidence for this cellular location is supported by measurement of intracellular and extracellular KEX-2 enzyme activity.
(7) The apparent pseudo-first-order exchange rate, kex, of the backbone amide protons and the correspondent activation enthalpies, delta H not equal to, were determined.
(8) For all other backbone amide protons in BPTI, the exchange was found to be uncorrelated and by an EX2 mechanism under all conditions of p2H and temperature where quantitative measurements could be obtained with the methods used, i.e., for kex approximately less than 5 min-1.
(9) For three variants of yeast iso-1-cytochrome c the rate constants measured by saturation transfer are wild-type (Asn52, E0 = 270 mV, kex = 0.3 s-1), Asn52----Ala (E0 = 240 mV, kex = 0.6 s-1), Asn52----Ile (E0 = 220 mV, kex = 1.0 s-1).
(10) It was found that the KEX-2 protease was unable to cleave the prepro-Lys-Arg-Pro-IL6 sequence, but that unspecific cleavage of the precursor protein had occurred.
(11) Thus, the kex phenotype does not require an alteration of the killer plasmid.--Kex1 and kex2 strains each contain near-normal levels of the 1.4 x 10(6) molecular weight double-stranded RNA, whose presence is correlated with the presence of the killer genome.
(12) The experimental study showed that KEX-I can inactivate directly the virus of Coxsackie B3, protect the heart cells in mice, prevent attack by Coxsackie B3, promote the growth of internal interferon and increase the NK cell's function to regulate immunity in experimental mice.
(13) When P2 organelles were separated in sucrose density gradients Rho1p comigrated with the Kex-2 activity, a late Golgi marker.
(14) Insulin affected both rate constants, reducing k(in) by 2.8-fold and increasing kex by 3.3-fold.
(15) The rate constants of efficient exchange interaction (kex) of spin-labelled lysozyme and the triplet probes perylene, eosine and anthracene butanoic acid with the haemoproteins were measured in microsomes and in solution by electron paramagnetic resonance and by the registration of delayed annihilation fluorescence.
(16) The look of Kex is, in part, down to Hálfdan Lárus Pedersen, a film production designer.
(17) At pH 6.0, first order rate constants for amino acid exit (kex) under steady state conditions for L-leucine, L-alanine, and L-serine were 1.1-1.3, 0.084, and 0.053 min-1, respectively.
(18) Most significantly, cleavage of the precursor to SRIF-28 was independent of the Kex 2 endoprotease since processing occurred efficiently in a kex 2 mutant strain.
(19) The clinical study was carried out with KEX-I according to a random, paired and cross-over design.
(20) Of particular clinical relevance is the [Cai] response to cardioplegia containing 16 mM [Kex]: neither group demonstrated the expected [Cai] increase in response to potassium depolarization.