- l-
Dopaquinone also
known as o-
dopaquinone is a
metabolite of L-DOPA (L-dihydroxyphenylalanine) and a
precursor of melanin.
Biosynthesis of
melanin occurs...
-
Tyrosine → DOPA →
dopaquinone Dopaquinone can
combine with
cysteine by two
pathways to
benzothiazines and
pheomelanins dopaquinone +
cysteine → 5-S-cysteinyldopa...
-
tyrosinase catalyzes the
oxidation of l-DOPA to the
reactive intermediate dopaquinone,
which reacts further,
eventually leading to
melanin oligomers. In addition...
- of l-tyrosine to l-dopa by the
enzyme tyrosine hydroxylase, then to l-
dopaquinone and dopachrome,
which forms melanin. As the body ages,
melanocyte distribution...
-
Inside the melanocytes,
tyrosine is
converted into L-DOPA and then L-
dopaquinone,
which in turn is
formed into
pheomelanin or eumelanin.
Different hair...
-
oxidative transformation of
catechol derivative dopa to
light absorbing dopaquinone to indole-5,6-quinone is
clearly seen
following the
polymerization to...
- an
amino acid, to l-DOPA (levodopa) and the
oxidation of d-DOPA to
dopaquinone which is then
further metabolised to melanin. β-Arbutin is
thought to...
-
formula C9H9NO4 (molar m****: 195.17 g/mol) may
refer to: L-
Dopaquinone, also
known as o-
dopaquinone Pencolide Salicyluric acid This set
index page
lists chemical...
-
catalysis of
tyrosine by an
enzyme called tyrosinase,
producing dopaquinone.
Dopaquinone may
become eumelanin, or phaeomelanin. Eumelanin,
meaning true...
- the
hydroxylation of
tyrosine to l-DOPA and the
oxidation of l-DOPA to
dopaquinone. By
inhibiting tyrosinase, α-arbutin
reduces the
formation of melanin...
