重组 Human LIM Kinase 1 protein (His tag N-Terminus)
Recombinant Human LIM Kinase 1 protein (His tag N-Terminus)
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Recombinant Human LIM Kinase 1 protein (His tag N-Terminus) is a Human Fragment protein, in the 285 to 638 aa range, expressed in Baculovirus infected Sf9 cells, with >85%, suitable for SDS-PAGE.
查看别名
LIMK, LIMK1, LIM domain kinase 1, LIMK-1
- SDS-PAGE
Unknown
SDS-PAGE - Recombinant Human LIM Kinase 1 protein (His tag N-Terminus) (AB70186)
反应性数据
序列信息
性能和储存信息
形式
纯化工艺
运输条件
推荐的短期储存条件
推荐的长期储存条件
分装信息
储存信息
补充信息
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
This kinase modulates cell shape migration and differentiation by influencing actin filament networks. LIMK1 associates with regulatory complexes and interacts with several proteins to facilitate cytoskeletal reorganization. It plays an essential part in neural development and synaptic plasticity affecting learning and memory. By phosphorylating key actin-binding proteins like cofilin LIMK1 alters actin dynamics essential for various cellular functions.
Pathways
LIM Kinase 1 influences the RhoA/ROCK and Rac1/Pak pathways both critical for cytoskeletal rearrangements. Within these pathways LIMK1 interacts closely with proteins such as cofilin and is influenced by upstream activators like Rho GTPases. These pathways link it to a broader network of signaling that controls cell movement and stability important for cellular responses in various environmental contexts.
常规信息
功能
Serine/threonine-protein kinase that plays an essential role in the regulation of actin filament dynamics. Acts downstream of several Rho family GTPase signal transduction pathways (PubMed : 10436159, PubMed : 11832213, PubMed : 12807904, PubMed : 15660133, PubMed : 16230460, PubMed : 18028908, PubMed : 22328514, PubMed : 23633677). Activated by upstream kinases including ROCK1, PAK1 and PAK4, which phosphorylate LIMK1 on a threonine residue located in its activation loop (PubMed : 10436159). LIMK1 subsequently phosphorylates and inactivates the actin binding/depolymerizing factors cofilin-1/CFL1, cofilin-2/CFL2 and destrin/DSTN, thereby preventing the cleavage of filamentous actin (F-actin), and stabilizing the actin cytoskeleton (PubMed : 11832213, PubMed : 15660133, PubMed : 16230460, PubMed : 23633677). In this way LIMK1 regulates several actin-dependent biological processes including cell motility, cell cycle progression, and differentiation (PubMed : 11832213, PubMed : 15660133, PubMed : 16230460, PubMed : 23633677). Phosphorylates TPPP on serine residues, thereby promoting microtubule disassembly (PubMed : 18028908). Stimulates axonal outgrowth and may be involved in brain development (PubMed : 18028908).. Isoform 3. Has a dominant negative effect on actin cytoskeletal changes. Required for atypical chemokine receptor ACKR2-induced phosphorylation of cofilin (CFL1).
序列相似性
Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family.
翻译后修饰
Autophosphorylated. Phosphorylated on Thr-508 by ROCK1 and PAK1, resulting in activation. Phosphorylated by PAK4 which increases the ability of LIMK1 to phosphorylate cofilin. Phosphorylated at Ser-323 by MAPKAPK2 during activation of VEGFA-induced signaling, which results in activation of LIMK1 and promotion of actin reorganization, cell migration, and tubule formation of endothelial cells. Dephosphorylated and inactivated by SSH1. Phosphorylated by CDC42BP.. Ubiquitinated. 'Lys-48'-linked polyubiquitination by RNF6 leads to proteasomal degradation through the 26S proteasome, modulating LIMK1 levels in the growth cone and its effect on axonal outgrowth. Also polyubiquitinated by RLIM (By similarity).
靶点信息
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