Catalysis of the reaction: ATP + shikimate = ADP + shikimate 3-phosphate.

Catalysis of the reaction: S-adenosylmethioninamine + putrescine = 5'-methylthioadenosine + spermidine.

Catalysis of the reaction: sphingomyelin + H2O = N-acylsphingosine + choline phosphate.

channel or pore class transporter activity

Allows facilitated diffusion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without a carrier-mediated mechanism. They do not exhibit stereospecificity but may be specific for a particular molecular species or class of molecules.

Catalysis of the reaction: stearoyl-CoA + reduced acceptor + O2 = oleoyl-CoA + acceptor + 2 H2O.

Allows the movement of solutes by energy-independent process by passage through a transmembrane aqueous pore. Usually consist of alpha-helical membrane spanners, although beta-strands may be present and contribute to channel.

Enables the directed movement of a sugar into, out of, within or between cells. A sugar is any member of a class of sweet, water-soluble, crystallizable carbohydrates, which are the monosaccharides and smaller oligosaccharides.

The conversion of N-linked glycan structures from the initially transferred oligosaccharide to a mature form, by the actions of glycosidases and glycosyltransferases. The early processing steps are conserved and play roles in glycoprotein folding and trafficking.

Catalysis of the reaction: a 3-oxo-delta(5)-steroid = a 3-oxo-delta(4)-steroid.

regulation of isotype switching to IgG isotypes

Any process that modulates the frequency, rate or extent of isotype switching to IgG isotypes.

protein amino acid O-linked glycosylation

The formation of O-glycans by addition of glycosyl groups either to the hydroxyl group of peptidyl-serine, peptidyl-threonine, peptidyl-hydroxylysine, or peptidyl-hydroxyproline, or to the phenol group of peptidyl-tyrosine.

positive regulation of isotype switching to IgG isotypes

Any process that activates or increases the rate of isotype switching to IgG isotypes.