ATP-Dependent Steps in Peroxisomal Protein Import
Annu Rev Biochem. 2024 Apr 15. doi: 10.1146/annurev-biochem-030222-111227. Online ahead of print.ABSTRACTPeroxisomes are organelles that play a central role in lipid metabolism and cellular redox homeostasis. The import of peroxisomal matrix proteins by peroxisomal targeting signal (PTS) receptors is an ATP-dependent mechanism. However, the energy-dependent steps do not occur early during the binding of the receptor-cargo complex to the membrane but late, because they are linked to the peroxisomal export complex for the release of the unloaded receptor. The first ATP-demanding step is the cysteine-dependent monoubiquitinat...
Source: Annual Review of Biochemistry - April 15, 2024 Category: Biochemistry Authors: Harald W Platta Julia Jeske Nadine Schmidt Ralf Erdmann Source Type: research

Leucine-Rich Repeat Kinases
We present here our current understanding of the structure, biochemical properties, and cell biology of LRRK2 and its related paralog LRRK1 and discuss how this information guides the generation of LRRK2 inhibitors for the potential benefit of patients.PMID:38621236 | DOI:10.1146/annurev-biochem-030122-051144 (Source: Annual Review of Biochemistry)
Source: Annual Review of Biochemistry - April 15, 2024 Category: Biochemistry Authors: Dario R Alessi Suzanne R Pfeffer Source Type: research

ATP-Dependent Steps in Peroxisomal Protein Import
Annu Rev Biochem. 2024 Apr 15. doi: 10.1146/annurev-biochem-030222-111227. Online ahead of print.ABSTRACTPeroxisomes are organelles that play a central role in lipid metabolism and cellular redox homeostasis. The import of peroxisomal matrix proteins by peroxisomal targeting signal (PTS) receptors is an ATP-dependent mechanism. However, the energy-dependent steps do not occur early during the binding of the receptor-cargo complex to the membrane but late, because they are linked to the peroxisomal export complex for the release of the unloaded receptor. The first ATP-demanding step is the cysteine-dependent monoubiquitinat...
Source: Annual Review of Biochemistry - April 15, 2024 Category: Biochemistry Authors: Harald W Platta Julia Jeske Nadine Schmidt Ralf Erdmann Source Type: research

Leucine-Rich Repeat Kinases
We present here our current understanding of the structure, biochemical properties, and cell biology of LRRK2 and its related paralog LRRK1 and discuss how this information guides the generation of LRRK2 inhibitors for the potential benefit of patients.PMID:38621236 | DOI:10.1146/annurev-biochem-030122-051144 (Source: Annual Review of Biochemistry)
Source: Annual Review of Biochemistry - April 15, 2024 Category: Biochemistry Authors: Dario R Alessi Suzanne R Pfeffer Source Type: research

Molecular Machines that Facilitate Bacterial Outer Membrane Protein Biogenesis
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-030122-033754. Online ahead of print.ABSTRACTAlmost all outer membrane proteins (OMPs) in Gram-negative bacteria contain a β-barrel domain that spans the outer membrane (OM). To reach the OM, OMPs must be translocated across the inner membrane by the Sec machinery, transported across the crowded periplasmic space through the assistance of molecular chaperones, and finally assembled (folded and inserted into the OM) by the β-barrel assembly machine. In this review, we discuss how considerable new insights into the contributions of these factors to OMP biogenesis ...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Matthew Thomas Doyle Harris D Bernstein Source Type: research

The Bis(monoacylglycero)-phosphate Hypothesis: From Lysosomal Function to Therapeutic Avenues
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-092823-113814. Online ahead of print.ABSTRACTLysosomes catabolize and recycle lipids and other biological molecules to maintain cellular homeostasis in diverse nutrient environments. Lysosomal lipid catabolism relies on the stimulatory activity of bis(monoacylglycero)phosphate (BMP), an enigmatic lipid whose levels are altered across myriad lysosome-associated diseases. Here, we review the discovery of BMP over half a century ago and its structural properties that facilitate the activation of lipid hydrolases and recruitment of their coactivators. We further discu...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Uche N Medoh Monther Abu-Remaileh Source Type: research

Molecular Machines that Facilitate Bacterial Outer Membrane Protein Biogenesis
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-030122-033754. Online ahead of print.ABSTRACTAlmost all outer membrane proteins (OMPs) in Gram-negative bacteria contain a β-barrel domain that spans the outer membrane (OM). To reach the OM, OMPs must be translocated across the inner membrane by the Sec machinery, transported across the crowded periplasmic space through the assistance of molecular chaperones, and finally assembled (folded and inserted into the OM) by the β-barrel assembly machine. In this review, we discuss how considerable new insights into the contributions of these factors to OMP biogenesis ...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Matthew Thomas Doyle Harris D Bernstein Source Type: research

The Bis(monoacylglycero)-phosphate Hypothesis: From Lysosomal Function to Therapeutic Avenues
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-092823-113814. Online ahead of print.ABSTRACTLysosomes catabolize and recycle lipids and other biological molecules to maintain cellular homeostasis in diverse nutrient environments. Lysosomal lipid catabolism relies on the stimulatory activity of bis(monoacylglycero)phosphate (BMP), an enigmatic lipid whose levels are altered across myriad lysosome-associated diseases. Here, we review the discovery of BMP over half a century ago and its structural properties that facilitate the activation of lipid hydrolases and recruitment of their coactivators. We further discu...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Uche N Medoh Monther Abu-Remaileh Source Type: research

Molecular Machines that Facilitate Bacterial Outer Membrane Protein Biogenesis
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-030122-033754. Online ahead of print.ABSTRACTAlmost all outer membrane proteins (OMPs) in Gram-negative bacteria contain a β-barrel domain that spans the outer membrane (OM). To reach the OM, OMPs must be translocated across the inner membrane by the Sec machinery, transported across the crowded periplasmic space through the assistance of molecular chaperones, and finally assembled (folded and inserted into the OM) by the β-barrel assembly machine. In this review, we discuss how considerable new insights into the contributions of these factors to OMP biogenesis ...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Matthew Thomas Doyle Harris D Bernstein Source Type: research

The Bis(monoacylglycero)-phosphate Hypothesis: From Lysosomal Function to Therapeutic Avenues
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-092823-113814. Online ahead of print.ABSTRACTLysosomes catabolize and recycle lipids and other biological molecules to maintain cellular homeostasis in diverse nutrient environments. Lysosomal lipid catabolism relies on the stimulatory activity of bis(monoacylglycero)phosphate (BMP), an enigmatic lipid whose levels are altered across myriad lysosome-associated diseases. Here, we review the discovery of BMP over half a century ago and its structural properties that facilitate the activation of lipid hydrolases and recruitment of their coactivators. We further discu...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Uche N Medoh Monther Abu-Remaileh Source Type: research

Molecular Machines that Facilitate Bacterial Outer Membrane Protein Biogenesis
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-030122-033754. Online ahead of print.ABSTRACTAlmost all outer membrane proteins (OMPs) in Gram-negative bacteria contain a β-barrel domain that spans the outer membrane (OM). To reach the OM, OMPs must be translocated across the inner membrane by the Sec machinery, transported across the crowded periplasmic space through the assistance of molecular chaperones, and finally assembled (folded and inserted into the OM) by the β-barrel assembly machine. In this review, we discuss how considerable new insights into the contributions of these factors to OMP biogenesis ...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Matthew Thomas Doyle Harris D Bernstein Source Type: research

The Bis(monoacylglycero)-phosphate Hypothesis: From Lysosomal Function to Therapeutic Avenues
Annu Rev Biochem. 2024 Apr 11. doi: 10.1146/annurev-biochem-092823-113814. Online ahead of print.ABSTRACTLysosomes catabolize and recycle lipids and other biological molecules to maintain cellular homeostasis in diverse nutrient environments. Lysosomal lipid catabolism relies on the stimulatory activity of bis(monoacylglycero)phosphate (BMP), an enigmatic lipid whose levels are altered across myriad lysosome-associated diseases. Here, we review the discovery of BMP over half a century ago and its structural properties that facilitate the activation of lipid hydrolases and recruitment of their coactivators. We further discu...
Source: Annual Review of Biochemistry - April 11, 2024 Category: Biochemistry Authors: Uche N Medoh Monther Abu-Remaileh Source Type: research

A Cool Look at Positive-Strand RNA Virus Replication Organelles: New Insights from Cryo-Electron Microscopy
Annu Rev Biochem. 2024 Apr 9. doi: 10.1146/annurev-biochem-052521-115736. Online ahead of print.ABSTRACTPositive-strand RNA viruses encompass a variety of established and emerging eukaryotic pathogens. Their genome replication is confined to specialized cytoplasmic membrane compartments known as replication organelles (ROs). These ROs derive from host membranes, transformed into distinct structures such as invaginated spherules or intricate membrane networks including single- and/or double-membrane vesicles. ROs play a vital role in orchestrating viral RNA synthesis and evading detection by innate immune sensors of the hos...
Source: Annual Review of Biochemistry - April 10, 2024 Category: Biochemistry Authors: Nina L de Beijer Eric J Snijder Montserrat B árcena Source Type: research

The Story of RNA Unfolded: The Molecular Function of DEAD- and DExH-Box ATPases and Their Complex Relationship with Membraneless Organelles
Annu Rev Biochem. 2024 Apr 9. doi: 10.1146/annurev-biochem-052521-121259. Online ahead of print.ABSTRACTDEAD- and DExH-box ATPases (DDX/DHXs) are abundant and highly conserved cellular enzymes ubiquitously involved in RNA processing. By remodeling RNA-RNA and RNA-protein interactions, they often function as gatekeepers that control the progression of diverse RNA maturation steps. Intriguingly, most DDX/DHXs localize to membraneless organelles (MLOs) such as nucleoli, nuclear speckles, stress granules, or processing bodies. Recent findings suggest not only that localization to MLOs can promote interaction between DDX/DHXs a...
Source: Annual Review of Biochemistry - April 10, 2024 Category: Biochemistry Authors: Kerstin D örner Maria Hondele Source Type: research

The Art and Science of Molecular Docking
Annu Rev Biochem. 2024 Apr 9. doi: 10.1146/annurev-biochem-030222-120000. Online ahead of print.ABSTRACTMolecular docking has become an essential part of a structural biologist's and medicinal chemist's toolkits. Given a chemical compound and the three-dimensional structure of a molecular target-for example, a protein-docking methods fit the compound into the target, predicting the compound's bound structure and binding energy. Docking can be used to discover novel ligands for a target by screening large virtual compound libraries. Docking can also provide a useful starting point for structure-based ligand optimization or ...
Source: Annual Review of Biochemistry - April 10, 2024 Category: Biochemistry Authors: Joseph M Paggi Ayush Pandit Ron O Dror Source Type: research