Non-alcoholic fatty liver disease (NAFLD)

Non-homologous end-joining

Non-small cell lung cancer

Nonribosomal peptide structures

Notch signaling pathway

Novobiocin biosynthesis

Nucleotide excision repair

Olfactory transduction

One carbon pool by folate

Oocyte meiosis

Osteoclast differentiation

Other glycan degradation

Other types of O-glycan biosynthesis

Ovarian steroidogenesis

Oxidative phosphorylation

Oxytocin signaling pathway

p53 signaling pathway

Pancreatic cancer

Pancreatic secretion

Pantothenate and CoA biosynthesis

Parkinson's disease

Pathogenic Escherichia coli infection

Pathways in cancer

Penicillin and cephalosporin biosynthesis

Pentose and glucuronate interconversions

Pentose phosphate pathway

Peptidoglycan biosynthesis




Phenylalanine metabolism

Phenylalanine, tyrosine and tryptophan biosynthesis

Phenylpropanoid biosynthesis

Phosphatidylinositol signaling system

Phosphonate and phosphinate metabolism

Phosphotransferase system (PTS)


Photosynthesis - antenna proteins


Phototransduction - fly

PI3K-Akt signaling pathway

Plant hormone signal transduction

Plant-pathogen interaction

Platelet activation

Polycyclic aromatic hydrocarbon degradation

Polyketide sugar unit biosynthesis

Porphyrin and chlorophyll metabolism

PPAR signaling pathway

Primary bile acid biosynthesis

Primary immunodeficiency

Prion diseases

Progesterone-mediated oocyte maturation

Prolactin signaling pathway

Propanoate metabolism

Prostate cancer


Protein digestion and absorption

Protein export

Protein processing in endoplasmic reticulum

Proteoglycans in cancer