Related by context. Frequent words. (Click for all words.) 65 proteins 64 microtubules 63 mitochondria 62 macromolecules 62 RNA molecules 62 membrane proteins 62 intracellular 62 plasma membrane 62 fibrils 62 vesicles 61 protein complexes 61 molecules 60 cytoplasm 60 nuclei 60 mammalian cells 60 epithelial cells 59 microtubule 59 germ cells 59 mRNAs 59 RNAs 58 Mitochondria 58 subunits 58 autophagy 58 biomolecules 58 signaling molecules 58 actin 57 metabolic pathways 57 dendrites 57 ubiquitin 57 cytoskeleton 57 yeast cells 57 neurones 57 cilia 57 photoreceptors 57 astrocytes 56 histones 56 proteasome 56 signaling pathway 56 molecule 56 cells 56 isoforms 56 signaling pathways 56 ribosomes 56 nerve cells 56 organic molecules 56 axon 56 protein synthesis 56 histone 56 extracellular 55 proteases 55 organisms 55 HSCs 55 neurons 55 binding proteins 55 heme 55 organism 55 glial cells 55 filaments 55 synapse 54 oncogenes 54 viral particles 54 enzymes 54 microglia 54 DNA strands 54 axons 54 metabolic processes 54 nanocrystals 54 immune cells 54 malignant cells 54 biochemical reactions 54 cell membranes 54 ligands 54 chromatin 54 macrophages 53 microparticles 53 cell membrane 53 C. elegans 53 motor neurons 53 eukaryotes 53 exons 53 signaling molecule 53 tumor suppressor genes 53 protein 53 quantum dots 53 oligodendrocytes 53 phospholipids 53 liposomes 53 lipids 53 mitosis 53 ribosome 53 progenitor cells 53 melanocytes 52 reactive oxygen species 52 amino acids 52 nanotubes 52 retinal cells 52 cell adhesion 52 tumor cells 52 Neurons 52 signal transduction 52 atoms