Abcam, ab41435, Anti-RhoA (phospho S188) antibody

Size: 50µL
Rabbit Polyclonal RHOA phospho S188 antibody. Suitable for WB and reacts with Human samples. Cited in 40 publications. Immunogen corresponding to Synthetic Peptide within Human RHOA phospho S188 conjugated to Keyhole Limpet Haemocyanin.
Key facts
Host species:Rabbit,
Clonality:Polyclonal,
Isotype:IgG,
Carrier free:No,
Reacts with:Human,
Applications:WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:Synthetic Peptide within Human RHOA phospho S188 conjugated to Keyhole Limpet Haemocyanin. The exact immunogen used to generate this antibody is proprietary information.P61586,
Specificity:Phospho-Ser188-RhoA specific. RhoA immunogen sequence not found in RhoB or RhoC proteins.

Product details:
Do not aliquot.
Post-translational regulation of Rho activity has been shown specifically for RhoA. This Rho protein is phosphorylated in vitro on serine 188 by cAMP- and cGMP-dependent kinases (PKA and PKG). Ser188 phosphorylation enhances RhoGDI binding and inhibits RhoA-mediated stress fiber formation. Thus, Ser188 is an important site for negative regulation of RhoA activity.

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Immunogen, Storage buffer-Preservative: 0.05% Sodium azideConstituents: PBS, 50% Glycerol (glycerin, glycerine), 0.1% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-Up to 6 months, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
RhoA also known as Ras homolog family member A is a small signaling GTPase. It weighs approximately 21 kDa. This protein is a part of the Rho family which includes other members like RhoB and RhoC. RhoA is widely expressed in various tissues including the brain kidney liver and lungs. Mechanically RhoA functions as a molecular switch cycling between an active GTP-bound state and an inactive GDP-bound state. This activity regulates the organization of the actin cytoskeleton and influences cell shape attachment and motility.
Biological function summary
The role of RhoA extends to cell proliferation and differentiation. It is a component of the Rho-GTPase cycle interacting with numerous effectors to transmit signals from the cell membrane to the actin cytoskeleton. RhoA influences the assembly of stress fibers and focal adhesions. It plays a part in cellular adhesion and migration making it essential for development and wound healing processes. As a central player in these activities RhoA affects several cellular responses to external stimuli.
Pathways
Research places RhoA prominently in the regulation of the Rho-ROCK (Rho-associated protein kinase) pathway and the planar cell polarity pathway. The Rho-ROCK pathway contributes to cytoskeletal dynamics and cell contractility while the planar cell polarity pathway influences tissue architecture during embryonic development. RhoA interacts with G17A in these pathways coordinating activities such as smooth muscle contraction and neuronal growth. These interactions also involve cross-talk with other signals linked to GTPases like Rac1 and Cdc42.
RhoA has connections to cancer progression and hypertension. In cancer RhoA regulates actin dynamics influencing tumor cell migration and invasion. It forms interactions with proteins such as p53 affecting apoptotic pathways and tumor suppression. In hypertension RhoA's role in smooth muscle contraction affects blood vessel tension and blood pressure regulation. Abnormal activity in the Rho-ROCK pathway contributes to these disorders highlighting the significance of RhoA in disease mechanisms.