Help filling in the blanks: Pyridoxal phosphate, PLP, is produced from pyridoxine or vitamin B6. PLP is considered a/an [1C/2C/acyl/amino/carboxyl] carrier. In transaminases, PLP forms a [Schiff base/acetal/phosphoanhydride/condensation] with an amino acid and causes the [a- amino/a-carbon/a-carboxyl] to become [electrophilic/nucleophilic] allowing replacement of the amino group on the amino acid with a ketone. PLP is also used by several other enzymes that work on amino acids because in forming a covalent bond with amino acids it provides for an opportunity for nucleophilic attack and because PLP is conjugated, the cofactor is able to [delocalize/transfer/reduce/stabilize] pi electrons in the substrate and thus [stabilize/delocalize/transfer/reduce] the transition state of the reaction. Production of citrulline occurs in the [cytosol/mitochondrial matrix] while the rest of the urea cycle occurs in the [cytosol/mitochondrial matrix]. Urea is produced in the [liver/bladder/muscles].
Help filling in the blanks:
Pyridoxal phosphate, PLP, is produced from pyridoxine or vitamin B6. PLP is considered a/an [1C/2C/acyl/amino/carboxyl] carrier. In transaminases, PLP forms a [Schiff base/acetal/phosphoanhydride/condensation] with an amino acid and causes the [a- amino/a-carbon/a-carboxyl] to become [electrophilic/nucleophilic] allowing replacement of the amino group on the amino acid with a
Production of citrulline occurs in the [cytosol/mitochondrial matrix] while the rest of the urea cycle occurs in the [cytosol/mitochondrial matrix]. Urea is produced in the [liver/bladder/muscles].
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