Catalysis of the cleavage of a Pro-Xaa bond by a serine-type peptidase mechanism to release a C-terminal amino acid.

Located in an organelle membrane such that some covalently attached portion of the gene product spans or is embedded in one or both leaflets of the membrane.

Any process that modulates the frequency, rate or extent of lyase activity, the catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.

intramolecular oxidoreductase activity, interconverting aldoses and ketoses

intramolecular isomerase activity, interconverting aldoses and ketoses

Penetrating at least one phospholipid bilayer of an organelle membrane. Also refers to the state of being buried in the bilayer with no exposure outside the bilayer.

The pronucleus originating from the ovum that is being fertilized.

positive regulation of tyrosine phosphorylation of STAT protein

Any process that activates or increases the rate of the introduction of a phosphoric group to a tyrosine residue of a STAT (Signal Transducer and Activator of Transcription) protein.

intramolecular oxidoreductase activity, interconverting keto- and enol-groups

intramolecular isomerase activity, interconverting keto- and enol-groups

negative regulation of tyrosine phosphorylation of STAT protein

Any process that stops, prevents or reduces the rate of the introduction of a phosphoric group to a tyrosine residue of a STAT (Signal Transducer and Activator of Transcription) protein.

Combining with melatonin, N-acetyl-5-methoxytryptamine, to initiate a change in cell activity. Melatonin is a neuroendocrine substance that stimulates the aggregation of melanosomes in melanophores, thus lightening the skin.