Any process that activates or increases the rate of the introduction of a phosphoric group to a tyrosine residue of a Stat3 protein.

negative regulation of tyrosine phosphorylation of Stat3 protein

Any process that stops, prevents or reduces the rate of the introduction of a phosphoric group to a tyrosine residue of a Stat3 protein.

Any process that modulates the frequency, rate or extent of oxidoreductase activity, the catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.

Catalysis of the reaction: (S)-dihydroorotate + H2O = N-carbamoyl-L-aspartate.

Catalysis of the reaction: (S)-dihydroorotate + acceptor = orotate + reduced acceptor.

The process whose specific outcome is the progression of the vasculature over time, from its formation to the mature structure.

positive regulation of hydrolase activity

Any process that activates or increases the rate of hydrolase activity, the catalysis of the hydrolysis of various bonds.

Catalysis of the reaction: NADPH + H+ + 6,7-dihydropteridine = NADP+ + 5,6,7,8-tetrahydropteridine.

negative regulation of hydrolase activity

Any process that stops or reduces the rate of hydrolase activity, the catalysis of the hydrolysis of various bonds.

Catalysis of the reaction: 2-amino-4-hydroxy-6-hydroxymethyl-7,8-dihydropteridine diphosphate + 4-aminobenzoate = diphosphate + dihydropteroate.

positive regulation of transferase activity

Any process that activates or increases the rate of transferase activity, the catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from a donor compound to an acceptor.

Catalysis of the reaction: 5,6-dihydrouracil + H2O = 3-ureidopropionate.

Facilitates transport across one or more biological membranes but do not themselves participate directly in transport. These proteins always function in conjunction with one or more established transport systems. They may provide a function connected with energy coupling to transport, play a structural role in complex formation, serve a biogenic or stability function or function in regulation.