Pollen Tube cell surface receptor 5 enzymology 5 genetics 5 growth, development and aging 5 metabolism 5 pollen tube 5 Alanine substitution 3 Amino Acid Motifs 3 Amino acids 3 Antagonistic effects 3 Comparative sequence analysis 3 Cytoplasmic juxtamembrane 3 Enzymes 3 Fruits 3 Lycopersicon esculentum 3 Mutagenesis, Site-Directed 3 Mutation 3 Nicotiana tabacum 3 Phosphorylation 3 Phosphorylation sites 3 Plant Proteins 3 Plants (botany) 3 Polarized cell growth 3 Protein Kinases 3 Receptor-like kinase 3 Site directed mutagenesis 3 Tubes (components) 3 alanine 3 amino acid substitution 3