What's the difference between binding and obligatory?

Binding


Definition:

  • (p. pr. & vb. n.) of Bind
  • (a.) That binds; obligatory.
  • (n.) The act or process of one who, or that which, binds.
  • (n.) Anything that binds; a bandage; the cover of a book, or the cover with the sewing, etc.; something that secures the edge of cloth from raveling.
  • (pl.) The transoms, knees, beams, keelson, and other chief timbers used for connecting and strengthening the parts of a vessel.

Example Sentences:

  • (1) Tryptic digestion of the membranes caused complete disappearance of the binding activity, but heat-treatment for 5 min at 70 degrees C caused only 40% loss of activity.
  • (2) Comparison of the S100 alpha-binding protein profiles in fast- and slow-twitch fibers of various species revealed few, if any, species- or fiber type-specific S100 binding proteins.
  • (3) Competition with the labelled 10B12 MAb for binding to the purified antigen was demonstrated in sera of tumor-bearing and immune rats.
  • (4) These studies led to the following conclusions: (a) all the prominent NHP which remain bound to DNA are also present in somewhat similar proportions in the saline-EDTA, Tris, and 0.35 M NaCl washes of nuclei; (b) a protein comigrating with actin is prominent in the first saline-EDTA wash of nuclei, but present as only a minor band in the subsequent washes and on washed chromatin; (c) the presence of nuclear matrix proteins in all the nuclear washes and cytosol indicates that these proteins are distributed throughout the cell; (d) a histone-binding protein (J2) analogous to the HMG1 protein of K. V. Shooter, G.H.
  • (5) Power urges the security council to "take the kind of credible, binding action warranted."
  • (6) The binding properties of formalin-fixed amelanotic melanoma cells were not identical to those of endothelial or unfixed target cells.
  • (7) Such an increase in antibody binding occurred simultaneously with an increase in the fluidity of surface lipid regions, as monitored by fluorescence depolarization of 1-(trimethylammoniophenyl)-6-phenyl-1,3,5-hexatriene.
  • (8) It has been generally believed that the ligand-binding of steroid hormone receptors triggers an allosteric change in receptor structure, manifested by an increased affinity of the receptor for DNA in vitro and nuclear target elements in vivo, as monitored by nuclear translocation.
  • (9) Lp(a) also complexes to plasmin-fibrinogen digests, and binding increases in proportion to the time of plasmin-induced fibrinogen degradation.
  • (10) Theoretical computations are performed of the intercalative binding of the neocarzinostatin chromophore (NCS) with the double-stranded oligonucleotides d(CGCG)2, d(GCGC)2, d(TATA)2 and d(ATAT)2.
  • (11) The LD50 of the following metal-binding chelating drugs, EDTA, diethylenetriaminepentaacetic acid (DTPA), hydroxyethylenediaminetriacetic acid (HEDTA), cyclohexanediaminotetraacetic acid (CDTA) and triethylenetetraminehexaacetic acid (TTHA) was evaluated in terms of mortality in rats after intraperitoneal administration and was found to be in the order: CDTA greater than EDTA greater than DTPA greater than TTHA greater than HEDTA.
  • (12) It was also able to inhibit the binding both of alpha-bungarotoxin and rabies virus glycoprotein to the acetylcholine receptor.
  • (13) We report a series of experiments designed to determine if agents and conditions that have been reported to alter sodium reabsorption, Na-K-ATPase activity or cellular structure in the rat distal nephron might also regulate the density or affinity of binding of 3H-metolazone to the putative thiazide receptor in the distal nephron.
  • (14) The procedure used in our laboratory was not able to provide accurate determination of the concentrations of these binding forms.
  • (15) The occupation of the high affinity calcium binding site by Ca(II) and Mn(II) does not influence the Cu(II) binding process, suggesting that there is no direct interaction between this site and the Cu(II) binding sites.
  • (16) PMN were found to be nonpermissive for HSV replication and were unable to bind virus in the absence of antibody.
  • (17) Radioligand binding studies revealed the presence of a single class of high-affinity (Kd = 2-6 X 10(-10) M) binding sites for ET-1 in both cells, although the maximal binding capacity of cardiac receptor was about 6- to 12-fold greater than that of vascular receptor.
  • (18) The transported pIgA was functional, as evidenced by its ability to bind to virus in an ELISA assay and to protect nonimmune mice against intranasal infection with H1N1 but not H3N2 influenza virus.
  • (19) The monoclonal antibody (mAb), SY38, binds to a cytoplasmic domain of synaptophysin.
  • (20) Binding data for both ligands to the enzyme yielded nonlinear Scatchard plots that analyze in terms of four negatively cooperative binding sites per enzyme tetramer.

Obligatory


Definition:

  • (a.) Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; -- often followed by on or upon; as, obedience is obligatory on a soldier.

Example Sentences:

  • (1) It is important to note that the proposed mechanism is not obligatory for androgen or other steroid hormone action.
  • (2) However, besides these obligatory alterations a high inter- and intraindividual variability of structural aspects is found in MS lesions.
  • (3) The presence of the other islet cell-types may be obligatory for these appropriate responses.
  • (4) From the derived cell flux in these compartments we suggest that 1) many more pre-B cells are produced than needed by the peripheral B cell pool; 2) if TdT is an obligatory stage in B cell genesis, there must be at least two cell cycles in the pre-B cell compartment; 3) if it is not, the TdT+ stage may be bypassed, with HIS24+TdT-Ig- cells perhaps feeding directly into the pre-B cell compartment.
  • (5) Neither cytochrome a nor cytochrome c appears to be an obligatory intermediate in cyanide-sensitive nicotinamide adenine dinucleotide oxidation in B. subtilis.
  • (6) Thus, the results of this study indicate that retinal is an obligatory intermediate in the hepatic production of retinoic acid from retinol and that cytosolic and microsomal retinol dehydrogenases play a key role in this process.
  • (7) Thus, even though LPS is a potent inducer of IFN-beta in murine macrophages, class I IFN expression may not be an obligatory intermediate event in the LPS-driven activation of ISRE binding activity.
  • (8) The four hosts (Mollusc -- Crustacean -- Odonat -- Amphibian) are obligatory in the life cycle for it is impossible to infect the Insects directly with the cecariae or the frog (tadpoles as well as adults) with the mesocercariae.
  • (9) The synergistic actions of E2 and either AA, the obligatory precursor of PGF2 alpha, or A23187, an enhancer of AA release from phospholipid stores, point to a stimulatory effect of E2 on prostaglandin synthase activity.
  • (10) No wt-1 expression was detected at any stage of tooth development showing that wt-1 is not obligatory for regulation of Egr-1 expression.
  • (11) These findings show that class switch by deletion of DNA regions in mature plasma cells is not obligatory for the secretion of immunoglobulin classes other than IgM.
  • (12) Serotonin plays an obligatory role in the initiation and expression of leech feeding behavior by its differential modulation of central neuronal networks and peripheral glands and muscles.
  • (13) However, in spite of these similarities, they differentially stimulate estrogenic responses that were previously thought to be interrelated and obligatory for full estrogenic action.
  • (14) These results, together with data from the native proteins, are consistent with obligatory 1-electron transfer between dehydrogenase and ETF possibly involving the exposed dimethylbenzene edge of ETF.
  • (15) Although Mg2+ is absolutely required for activation of adenylate cyclase by the GTP analogue guanosine 5'-[beta gamma-imido]triphosphate (p[NH]ppG), it is not obligatory for p[NH]ppG-stimulated ADP-ribosylation by cholera toxin.
  • (16) This suggests that normally the midline floor plate cells do provide guidance cues, but that these cues are not obligatory.
  • (17) The protein supply recommended for a certain age group should not be obligatory for the individual child.
  • (18) The results strongly suggest that the obligatory antigen processing event required for helper T cell recognition of alloantigen is simply the insertion of the alloantigen into the same membrane bilayer as the syngeneic Ia restricting element.
  • (19) This new function is derived by assuming that all chromosome arms except the short arms of acrocentric chromosomes hav an obligatory chiasma, and that the remaining chiasmata are distributed at random; assumptions which may correspond reasonably well to reality.
  • (20) Its somewhat unique features have attracted widespread interest both nationally and internationally and may be seen as part of an international movement towards obligatory CME in Western Medicine.