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October 31, 2008

Volume 283Issue 44p29613-e99961
Open Access
On The Cover: Photograph of germinating castor oil seed (COS). At the outset of COS germination 50% of the subunits of an anaplerotic phosphoenolpyruvate carboxylase (PEPC) isozyme become monoubiquitinated, resulting in formation of a novel PEPC heterotetramer exhibiting altered kinetic properties. A threaded model of COS PEPC (based on the maize PEPC structure) is depicted, with the two ubiquitin molecules (blue) superimposed over PEPC's conserved lysine 625 monoubiquitination site. For details see the article by Uhrig et al., pages 29650–29657....
On The Cover: Photograph of germinating castor oil seed (COS). At the outset of COS germination 50% of the subunits of an anaplerotic phosphoenolpyruvate carboxylase (PEPC) isozyme become monoubiquitinated, resulting in formation of a novel PEPC heterotetramer exhibiting altered kinetic properties. A threaded model of COS PEPC (based on the maize PEPC structure) is depicted, with the two ubiquitin molecules (blue) superimposed over PEPC's conserved lysine 625 monoubiquitination site. For details see the article by Uhrig et al., pages 29650–29657.

Minireviews

DNA: Replication, Repair, Recombination, and Chromosome Dynamics

Transcription, Chromatin, and Epigenetics

RNA: Processing and Catalysis

RNA-Mediated Regulation and Noncoding RNAs

Protein Synthesis, Post-Translational Modification, and Degradation

Genomics, Proteomics, and Bioinformatics

Protein Structure and Folding

Enzyme Catalysis and Regulation

Metabolism and Bioenergetics

Glycobiology and Extracellular Matrices

Lipids and Lipoproteins: Metabolism, Regulation, and Signaling

Membrane Transport, Structure, Function, and Biogenesis

Molecular Basis of Cell and Developmental Biology

Mechanisms of Signal Transduction

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