Any process that modulates the frequency, rate or extent of osteoblast differentiation.

negative regulation of osteoblast differentiation

Any process that stops, prevents or reduces the rate of osteoblast differentiation.

Catalysis of the hydrolytic cleavage of the terminal or penultimate peptide bond at the C-terminal end of a peptide or polypeptide.

Catalysis of the hydrolysis of C-terminal amino acid residues from oligopeptides or polypeptides; a bivalent cation is an essential component of the catalytic mechanism.

Catalysis of the reaction: peptidyl-L-amino acid + H2O = peptide + L-amino acid. Little or no action with -Asp, -Glu, -Arg, -Lys or -Pro.

voltage-gated anion channel porin activity

voltage-dependent anion channel porin activity

regulation of protein amino acid phosphorylation

Any process that modulates the frequency, rate or extent of addition of phosphoric groups into an amino acid in a protein.

Catalysis of the reaction: peptidyl-L-lysine(or L-arginine) + H2O = peptide + L-lysine(or L-arginine). Function is activated by Co2+ and inhibited by 1,10-phenanthroline and other chelating agents.

negative regulation of protein amino acid phosphorylation

Any process that stops, prevents or decreases the rate of addition of phosphoric groups to amino acids within a protein.

Catalysis of the reaction: peptidyl-L-lysine(or L-arginine) + H2O = peptide + L-lysine(or L-arginine). Release of a C-terminal basic amino acid, preferentially lysine; inactivates bradykinin and anaphylatoxins in blood plasma.

positive regulation of protein amino acid phosphorylation

Any process that activates or increases the rate of addition of phosphoric groups to amino acids within a protein.

Catalysis of the hydrolysis of carboxyl terminal peptide linkages in oligopeptides or polypeptides; a serine residue is at the active center.

Interacting selectively with cholesterol (cholest-5-en-3-beta-ol); the principal sterol of vertebrates and the precursor of many steroids, including bile acids and steroid hormones.