A survey of cell biology /

Contributors p. ix
Interpretation of Mutants in Leaf Morphology: Genetic Evidence for a Compensatory System in Leaf Morphogenesis That Provides a New Link between Cell and Organismal Theories Hirokazu Tsukaya
I. Introduction p. 2
II. Organismal Theory p. 4
III. Organismal Theory versus Cell Theory--Case Studies p. 7
IV. Concluding Remarks: Neo-Cell Theory p. 32
References p. 34
Regulation of Nuclear Import and Export by the GTPase Ran Susanne M. Steggerda and Bryce M. Paschal
I. Introduction p. 41
II. Overview: Nuclear Transport Pathways p. 42
III. Ran and Its Primary Regulators RanGEF and RanGAP p. 52
IV. Nuclear Transport Receptors Regulated by Ran p. 60
V. Ran-Binding Domain- (RanBD) Containing Proteins p. 70
VI. NTF2 and Related Proteins p. 75
VII. Concluding Remarks p. 79
References p. 79
The Role of Growth Factors in Tooth Development Irma Thesleff and Marja Mikkola
I. Introduction p. 93
II. TGF-[beta] Family p. 97
III. Fibroblast Growth Factors p. 102
IV. Sonic Hedgehog p. 107
V. Wnt Family p. 110
VI. Tumor Necrosis Factors p. 113
VII. Notch Signaling p. 116
VIII. Other Growth Factors p. 118
IX. Signaling Networks and Dental Patterning p. 119
X. Concluding Remarks p. 126
References p. 128
Actin Dynamics in Platelets E. L. Bearer and J. M. Prakash and Z. Li
I. Introduction p. 137
II. Platelets and Actin p. 138
III. Actin Filaments in Resting Platelets p. 148
IV. Inhibition of Actin Polymerization in Resting Platelets p. 152
V. Actin Filaments in Activated Platelets p. 160
VI. Stress Fibers and Adhesion Plaques p. 168
VII. A Model of Actin Dynamics in Platelet Activation p. 172
VIII. Summary p. 174
References p. 175
Photoreceptor Renewal: A Role for Peripherin/rds Kathleen Boesze-Battaglia and Andrew F. X. Goldberg
I. Introduction p. 184
II. Organization of Vertebrate Photoreceptors p. 185
III. Preservation of ROS Organization p. 188
IV. Cellular Processes Coordinating Renewal p. 198
V. Molecular Basis of Disk Renewal p. 202
VI. Concluding Remarks p. 212
References p. 214
Specification of Developmental Fates in Ascidian Embryos: Molecular Approach to Maternal Determinants and Signaling Molecules Hiroki Nishida
I. Introduction p. 227
II. Maternal Determinants That Control Cell Fates p. 229
III. Signaling Molecules That Mediate Inductive Interactions p. 243
IV. Concluding Remarks p. 265
References p. 266
Index p. 277