What's the difference between alack and alas?

Alack


Definition:

  • (interj.) An exclamation expressive of sorrow.

Example Sentences:

  • (1) Felton, who has been keeping a close – and worried – eye on the council’s decisions, won’t be able to attend the protests due to alack of transport.
  • (2) Alas, alack, way off the mark, which is a shame as Craig probably could have done with something to take the edge off Kirk's take on sex education.

Alas


Definition:

  • (interj.) An exclamation expressive of sorrow, pity, or apprehension of evil; -- in old writers, sometimes followed by day or white; alas the day, like alack a day, or alas the white.

Example Sentences:

  • (1) No difference in therapeutic activity between CNC-ala-17-E2 and CNC-ala could be observed in a transplanted rat leukemia (L 5222).
  • (2) In each subject, the activity in leucocytes of delta-aminolaevulinic acid (ALA) synthase increased and that of protoporphyrinogen (proto) oxidase decreased during the first week of therapy.
  • (3) The IL-8 isolated from each of these cell types is a mixture of two IL-8 polypeptides, one consisting of 72 amino acids (herein called [ser-IL-8]72) and the other 77 amino acids (an N-terminal extended form herein called [ala-IL-8]77).
  • (4) Two EGZ-derived proteins were engineered in which either His98 or Glu133 amino acid was converted to an Ala residue.
  • (5) In cirrhosis there was a decrease, of zinc (-40%) albumin (-38%) and of activity of ALA D (-48%) and an increase in blood lead (+80%).
  • (6) We have named them bombolitin I (Ile-Lys-Ile-Thr-Thr-Met-Leu-Ala-Lys-Leu-Gly-Lys-Val-Leu-Ala-His-Val-NH2 ), bombolitin II (Ser-Lys-Ile-Thr-Asp-Ile-Leu-Ala-Lys-Leu-Gly-Lys-Val-Leu-Ala-His-Val-NH2 ), bombolitin III (Ile-Lys-Ile-Met-Asp-Ile-Leu-Ala-Lys-Leu-Gly-Lys-Val-Leu-Ala-His-Val-NH2 ), bombolitin IV (Ile-Asn-Ile-Lys-Asp-Ile-Leu-Ala-Lys-Leu-Val-Lys-Val-Leu-Gly-His-Val-NH2 ), and bombolitin V (Ile-Asn-Val-Leu-Gly-Ile-Leu-Gly-Leu-Leu-Gly-Lys-Ala-Leu-Ser-His-Leu-NH2 ).
  • (7) To confirm this, ALA-S activity was then directly measured in intact reticulocytes, and it was shown that ethanol indeed inhibited its activity.
  • (8) All inhibitors had no effect on L-Ala uptake into brush-border membrane vesicles in presence of Na+ gradient.
  • (9) Specimens from the bone marrow taken were by trephine biopsy from the sternum, ala ossis ilii and spine.
  • (10) Paraproteins, usually of the IgG-kappa isotype, were found in the sera of a significant number of HIV-1-infected individuals as were antibodies to lymphocytes (ALAs).
  • (11) With the use of the method Chick Embryotoxicity Screening Test II (CHEST II), the potential neuropeptides L-prolyl-L-leucyl-glycinamide (MIF), cyclo(1-aminocyclo-pentanecarbonyl-L-alanyl)[cyclo(Acp-Ala)] and cyclo(glycyl-L-leucyl)[Cyclo(Gly-Leu)] were tested in the critical developmental periods of d 1.5 to 4 of chick embryogenesis in order to objectively examine their undesirable interactions with the developing morphogenetic systems of the brain, eye, face, body wall, limbs, trunk and heart.
  • (12) The differential scanning calorimetry (DSC) studies demonstrate an increased susceptibility of the Ala 183----Pro mutant to thermal denaturation.
  • (13) Mutants of Escherichia coli which require 5-aminolaevulinic acid (5-ALA), the first intermediate of haem biosynthesis, do not respond to haemin and porphyrins.
  • (14) The lipid-mobilizing activity of a synthetic peptide, NH2-Phe-Glu-Glu-Ala-Tyr-Ile-Pro-Lys-Glu-Gln-Lys-Tyr-Ser-Phe-COOH, corresponding to the 31-44 amino-acid sequence of human growth hormone, was studied.
  • (15) The replacements for Glu-43 (Asp, Gln, Asn, Ser, and Ala) both decreased the catalytic efficiency and changed the one- and two-dimensional NMR spectral properties of the mutant enzymes.
  • (16) Alas, for Jones, they found more of his ill-gotten gains in another plot he had perhaps forgotten to mention.
  • (17) The structures of two crystal forms of Boc-Trp-Ile-Ala-Aib-Ile-Val-Aib-Leu-Aib-Pro-OMe have been determined.
  • (18) Daily intra-VTA injections of the mu opioid agonist Tyr-D-Ala-Gly-NMe-Phe-Gly-ol enhanced the behavioral stimulant effect of acute morphine.
  • (19) The (beta-chloro-, (beta, beta-dichloro-, and (beta, beta, beta-trichloro-alpha-aminoethyl)phosphonic acids have been synthesized and their inhibitory properties on the alanine racemases [EC 5.1.1.1] and the D-Ala:D-Ala ligases [EC 6.3.2.4] from Pseudomonas aeruginosa and Streptococcus faecalis have been evaluated.
  • (20) Angiotensin converting enzyme activity was measured in intact aortic rings utilizing the synthetic tripeptide [3H]-benzoyl-Phe-Ala-Pro as the substrate.

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