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词汇 carboxylate
释义

Definition of carboxylate in English:

carboxylate

noun kɑːˈbɒksɪleɪtkärˈbäksəˌlāt
Chemistry
  • A salt or ester of a carboxylic acid.

    羧酸盐;羧酸酯

    Example sentencesExamples
    • Alkaline earth metal ions more readily bind ‘hard’ ligands such as phosphates, carboxylates, and hydroxyl groups.
    • What is more, the indicator has two proton-binding sites: the oxyanion of the xanthene ring and the carboxylate of the benzene as independent sites, which can also exchange protons among themselves.
    • The Hill coefficient should distinguish between amides near an isolated carboxylate and amides interacting with multiple carboxylates.
    • Such a low pH value suggests that at higher pH the protonation of a carboxylate, forming a hydrogen bond, would break this interaction leading to a destabilization and a change in the heme pocket crucial to catalysis.
    • The ability to mine P is attributed to the development of specialized ‘proteoid’ or ‘cluster’ roots that exude large quantities of carboxylates and phosphatases.
verb kɑːˈbɒksɪleɪtkärˈbäksəˌlāt
[with object]Chemistry
  • Add a carboxyl group to (a compound)

    使羧化

    warfarin prevents vitamin K from carboxylating the vitamin K-dependent clotting factors
    Example sentencesExamples
    • It is suggested that mitochondrial pyruvate is partly oxidized by the TCA cycle and is partly exported to the cytoplasm where it is carboxylated to form malate 1-for continued export to the apoplast.
    • The optically trapped carboxylated bead is attached to the cationic vesicle adhered onto a glass coverslip, by electrostatic interactions.
    • Depending on ratios of CO 2 to O 2 at binding sites of ribulose bisphosphate carboxylase, ribulose bisphosphate is either carboxylated or oxygenated.
    • As the name of the enzyme implies, pyruvate is carboxylated to form oxaloacetate.
    • Lack of proton-pumping activity has also been found in heterologously expressed Neurospora rhodopsin, which has carboxylated residues at both the Schiff base proton donor and acceptor positions, as does GtR1.

Derivatives

  • carboxylation

  • noun
    Chemistry
    • Thus, malate produced following PEP carboxylation is readily decarboxylated and the CO 2 released.
      Example sentencesExamples
      • Besides requiring vitamin K, these extrinsic factors need carbon dioxide and oxygen for carboxylation.
      • The best-studied CAM models produce predominantly starch in the chloroplast as the transitory carbon reserve to support nocturnal carboxylation and malate synthesis.
      • Rubisco must be activated to catalyse the carboxylation and oxygenation reactions.
      • OAA would be produced by carboxylation of phosphoenol pyruvate in a reaction catalysed by guard cell PEP carboxylase.

Definition of carboxylate in US English:

carboxylate

nounkärˈbäksəˌlāt
Chemistry
  • A salt or ester of a carboxylic acid.

    羧酸盐;羧酸酯

    Example sentencesExamples
    • Alkaline earth metal ions more readily bind ‘hard’ ligands such as phosphates, carboxylates, and hydroxyl groups.
    • Such a low pH value suggests that at higher pH the protonation of a carboxylate, forming a hydrogen bond, would break this interaction leading to a destabilization and a change in the heme pocket crucial to catalysis.
    • The ability to mine P is attributed to the development of specialized ‘proteoid’ or ‘cluster’ roots that exude large quantities of carboxylates and phosphatases.
    • What is more, the indicator has two proton-binding sites: the oxyanion of the xanthene ring and the carboxylate of the benzene as independent sites, which can also exchange protons among themselves.
    • The Hill coefficient should distinguish between amides near an isolated carboxylate and amides interacting with multiple carboxylates.
verbkärˈbäksəˌlāt
[with object]Chemistry
  • Add a carboxyl group to (a compound)

    使羧化

    warfarin prevents vitamin K from carboxylating the vitamin K-dependent clotting factors
    Example sentencesExamples
    • The optically trapped carboxylated bead is attached to the cationic vesicle adhered onto a glass coverslip, by electrostatic interactions.
    • As the name of the enzyme implies, pyruvate is carboxylated to form oxaloacetate.
    • Lack of proton-pumping activity has also been found in heterologously expressed Neurospora rhodopsin, which has carboxylated residues at both the Schiff base proton donor and acceptor positions, as does GtR1.
    • Depending on ratios of CO 2 to O 2 at binding sites of ribulose bisphosphate carboxylase, ribulose bisphosphate is either carboxylated or oxygenated.
    • It is suggested that mitochondrial pyruvate is partly oxidized by the TCA cycle and is partly exported to the cytoplasm where it is carboxylated to form malate 1-for continued export to the apoplast.
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