Interacting selectively with zinc (Zn) ions.

Catalysis of the reaction: CH3-CHOH-CH2-[CH2]n-CO-[acyl-carrier protein] = H2O + CH3-CH-CH-[CH2]n-CO-[acyl-carrier protein].

Catalysis of the reaction: L-cysteine + [enzyme]-cysteine = L-alanine + [enzyme]-S-sulfanylcysteine.

A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plama membrane and is derived from the lysosome.

Interacting selectvely with a heat shock protein, any protein synthesized or activated in response to heat shock.

The junction between a nerve fiber of one neuron and another neuron or muscle fiber or glial cell; the site of interneuronal communication. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.

The directed movement of sulfate into, out of, within or between cells.

Catalysis of the reaction: Ca2+(in) + K+(in) + Na+(out) = Ca2+(out) + K+(out) + Na+(in).

Catalysis of the transfer of a methyl group (CH3-) to a protein.

natural killer cell mediated cytotoxicity

The directed killing of a target cell by a natural killer cell through the release of granules containing cytotoxic mediators or through the engagement of death receptors.

regulation of G-protein coupled receptor protein signaling pathway

regulation of GPCR protein signalling pathway

Any process that modulates the frequency, rate or extent of G-protein coupled receptor protein signaling pathway activity.