The breakdown into simpler components of rRNA, ribosomal RNA, a structural constituent of ribosomes.

Ribonucleoprotein complex containing small nuclear RNA U1; a component of the major spliceosome complex.

Ribonucleoprotein complex containing small nuclear RNA U2; a component of the major spliceosome complex.

The breakdown into simpler components of tRNA, transfer RNA, a class of relatively small RNA molecules responsible for mediating the insertion of amino acids into the sequence of nascent polypeptide chains during protein synthesis.

Ribonucleoprotein complex containing small nuclear RNA U6; a component of the major spliceosome complex.

Catalysis of the hydrolysis of alpha-L-iduronosidic linkages in desulfated dermatan.

Fusion of intracellular membrane-bound vesicles with the pre-synaptic membrane of the neuronal cell resulting in release of neurotransmitter into the synaptic cleft.

Catalysis of the reaction: L-serine = pyruvate + NH3.

Catalysis of the reaction: N-acetyl-L-glutamate 5-semialdehyde + NADP+ + phosphate = N-acetyl-5-glutamyl phosphate + NADPH + H+.

Catalysis of the hydrolysis of the 4-sulfate groups of the N-acetyl-D-galactosamine 4-sulfate units of chondroitin sulfate and dermatan sulfate.

Modulates the activity of any of the phosphoinositide 3-kinases (PI3Ks). Regulatory subunits can link a PI3K catalytic subunit to upstream signaling events and help position the catalytic subunits close to their lipid substrates.

Catalysis of the reaction: glycoprotein N-acetyl-D-glucosaminyl-phospho-D-mannose + H2O = N-acetyl-D-glucosamine + glycoprotein phospho-D-mannose.

Catalysis of the reaction: UDP-galactose + N-acetyl-D-glucosamine = UDP + N-acetyllactosamine.

Catalysis of the reaction: UDP-N-acetyl-D-galactosamine + (N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide = UDP + N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide.

Catalysis of the reaction: N(4)-(beta-N-acetyl-D-glucosaminyl)-L-asparagine + H2O = N-acetyl-beta-glucosaminylamine + L-aspartate.