Enables the transfer of organic acids from one side of a membrane to the other. Organic acids are acidic compound containing carbon in covalent linkage.

Enables the directed movement of alkanesulfonate from one side of a membrane to the other.

Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: taurine(out) + Na+(out) = taurine(in) + Na+(in).

The directed movement of a deoxynucleotide, a deoxyribonucleoside in ester linkage to phosphate, commonly at the 5' position of deoxyribose, into, out of or within a cell.

OBSOLETE. Catalysis of the cleavage of peptide bonds in collagen with preferential cleavage where P1', P2' and P3' are hydrophobic residues; action on collagen types III, IV and V is weak.

OBSOLETE. Stops, prevents or reduces the activity of the serine endopeptidase trypsin.

Catalysis of the cleavage of heparan sulfate; can degrade both heparan sulfate and heparin glycosaminoglycan chains.

Enables the transfer of tricarboxylate from one side of a membrane to the other, up its concentration gradient. The transporter binds the solute and undergoes a series of conformational changes. Transport works equally well in either direction and is driven by a chemiosmotic source of energy. Secondary active transporters include symporters and antiporters.

OBSOLETE. A transporter of heavy metal ions that utilizes a carrier-mediated process to catalyze uniport, symport or antiport between aqueous phases on either side of a lipid membrane.

A cascade of processes induced by the cell cycle regulator phosphoprotein p53, or an equivalent protein, in response to the detection of DNA damage.

An intracellular signaling process that is induced by the cell cycle regulator phosphoprotein p53 or an equivalent protein.

Binding to a nuclear estrogen receptor.

OBSOLETE. (Was not defined before being made obsolete).

Binding to cyclins, proteins whose levels in a cell varies markedly during the cell cycle, rising steadily until mitosis, then falling abruptly to zero. As cyclins reach a threshold level, they are thought to drive cells into G2 phase and thus to mitosis.

OBSOLETE. (Was not defined before being made obsolete).