calmodulin binding peptide sequence sequence - w3-peptide fifteen Unraveling the Calmodulin Binding Peptide Sequence: A Deep Dive into Molecular Interactions

caliray-peptide-primer The intricate dance of cellular signaling relies heavily on protein-protein interactions, and calmodulin (CaM), a ubiquitous calcium-binding protein, plays a pivotal role in mediating these processes. Its ability to bind to a diverse array of target proteins is often facilitated by specific calmodulin binding peptide regions within those proteins. Understanding the precise calmodulin binding peptide sequence is crucial for deciphering cellular regulation, developing therapeutic interventions, and advancing biotechnological applications.

Calmodulin itself is a conserved protein that acts as a molecular switch, responding to fluctuations in intracellular calcium levels. Upon binding calcium ions, calmodulin undergoes a conformational change, enabling it to interact with a vast repertoire of downstream targets, including enzymes, ion channels, and transcription factors. These interactions are typically mediated by short, complementary peptide sequences present in the target proteins.作者：NB Adey·1996·被引用次数：34—Twenty CaM-bindingpeptides were identified, 17 of which contained one of three consensussequencemotifs: + W-OlambdaR, WRAAV or WRXXAAAL, ... The binding of these peptide sequences to calmodulin triggers an "induced fit" mechanism, altering the conformation of both molecules and initiating downstream signaling cascades.

One of the most extensively studied calmodulin binding peptide examples is derived from the skeletal muscle myosin light chain kinase (skMLCK). This peptide, often referred to as Calmodulin Binding Peptide 1, is a short 26-residue sequence that exhibits high affinity for calmodulin, with dissociation constants in the picomolar (pM) range....peptide(S133-S159) of murine MBP variant, C1. Thispeptideis an amphipathic alpha-helix and comprises the primarycalmodulin-bindingdomain in the MBP The specific amino acid composition of Calmodulin Binding Peptide 1 is {GLY}{VAL}{MET}{PRO}{ARG}{GLU}{GLU}{THR}{ASP}{SER}{LYS}{THR}{ALA}{SER}{PRO}{TRP}{LYS}{SER}{ALA}{ARG}{LEU}{MET}{VAL}{HIS}.It is an acidic protein of 148 residues, and uponbindingCa2+, it in turn binds to shortpeptide sequencesof many target proteins. Such interaction is ... This sequence is characterized by a combination of basic and hydrophobic residues, which are key features for effective calmodulin binding.

Research has identified consensus sequence motifs that are frequently found in calmodulin-binding peptides. For instance, studies have highlighted motifs such as W-OlambdaR, WRAAV, or WRXXAAAL, where specific amino acids are represented by symbols indicating their charge or hydrophobicity. These motifs provide valuable insights into the general structural requirements for calmodulin recognition. Another notable example is the MARCKS calmodulin (CaM)-binding domain, which has been structurally characterized in complex with calcium-bound calmodulin, providing atomic-level detail of the interaction.Structural diversity of calmodulin binding to its target sites

The significance of calmodulin binding peptides extends beyond fundamental research. They serve as valuable tools in various biotechnological applications. For example, a calmodulin-binding peptide (CBP) tag is an attractive tag for affinity purification of recombinant proteins, particularly membrane proteins, which are often challenging to isolate.2K0F: Calmodulin complexed with ... This CBP tag allows for the efficient and specific capture of tagged proteins using calmodulin immobilized on a resinA calmodulin-binding peptide relaxes skinned muscle from .... This technique is crucial for producing high-purity proteins for structural studies, drug discovery, and therapeutic development.

Furthermore, engineered calmodulin-binding peptides are being explored for novel applications. The development of an engineered calmodulin-based allosteric switch leverages the inherent ability of calmodulin to mediate protein-protein interactions. This approach holds promise for creating sophisticated molecular tools for controlling protein activity within cellsCalmodulin Binding Peptide 1.

The diversity of calmodulin-binding proteins and their associated peptide sequences is remarkable. For instance, calcineurin, a crucial protein phosphatase in the brain, is a calmodulin-binding protein in brain and its activity is directly regulated by calmodulin. The interaction involves specific peptide sequences within calcineurin that bind to calmodulin in a calcium-dependent manner. Similarly, the murine myelin basic protein (MBP) contains a primary calmodulin-binding domain within its S133-S159 peptide, which adopts an amphipathic alpha-helix structure upon binding to calmodulin.Calmodulin Binding - an overview

The study of calmodulin binding peptide sequence is an ongoing and dynamic field.Calmodulin binding peptide Recombinant Rabbit Monoclonal Antibody (HL1841) ; 类型. Antibody ; 克隆号. HL1841 ; 偶联物. Unconjugated ; 形式. Liquid ; 浓度. 1 mg/mL ... From understanding the fundamental molecular mechanisms of cellular signaling to engineering novel protein-based tools, the exploration of these critical peptide sequences continues to yield significant scientific advancements.It is an acidic protein of 148 residues, and uponbindingCa2+, it in turn binds to shortpeptide sequencesof many target proteins. Such interaction is ... The ability of calmodulin to bind to targeted proteins via their short complementary peptide sequences remains a cornerstone of cellular regulation and a fertile ground for innovation.The calmodulin-binding peptide (CBP) isa short 26-residue sequencederived from the C-terminus of skeletal muscle myosin light chain kinase that binds ...