Human Rala binding protein

Updated: 2026-07-24

Overview

RalA Binding Protein (RALBP1), also known as RLIP76 or RLIP1, is a multifunctional protein that plays a significant role in cellular signaling pathways. It is primarily recognized for its GTPase-activating protein (GAP) activity, which regulates small GTPases like RalA and RalB. RALBP1 is involved in critical cellular processes, including endocytosis, stress response, and apoptosis. Discovered in the late 1990s, RALBP1 has since been studied extensively for its role in cancer biology and neurological disorders. Its ability to interact with multiple signaling molecules makes it a key player in understanding cellular mechanisms and potential therapeutic targets. Researchers often study RALBP1 to explore its implications in drug resistance and metastasis.

Physical and Chemical Properties

RALBP1 is a protein with a molecular weight of approximately 76 kDa. It is typically supplied as a lyophilized powder or in liquid solution form, depending on the supplier and intended use. The protein is soluble in aqueous buffers, making it suitable for various biochemical assays and experiments. While specific physical properties like melting and boiling points are not applicable, the protein's stability under different storage conditions is critical. RALBP1 should be stored at -20°C or -80°C to maintain its activity and prevent degradation. Repeated freeze-thaw cycles should be avoided to preserve its functional integrity.

Main Applications

RALBP1 is widely used in biomedical research, particularly in studies focusing on cancer biology and neurological disorders. Its role in regulating endocytosis and stress responses makes it a valuable target for understanding disease mechanisms. Researchers investigate RALBP1 to explore its involvement in drug resistance, particularly in chemotherapy-resistant cancers. In addition to cancer research, RALBP1 is studied for its potential role in neurodegenerative diseases. Its interaction with signaling pathways implicated in Alzheimer's and Parkinson's diseases makes it a promising candidate for therapeutic development. The protein is also used in high-throughput screening assays to identify potential inhibitors or modulators.

Safety and Storage

When handling RALBP1, standard laboratory precautions should be followed. This includes wearing appropriate personal protective equipment (PPE), such as gloves and lab coats, to minimize exposure. The protein should be stored at -20°C or -80°C for long-term preservation, and aliquoting is recommended to avoid repeated freeze-thaw cycles. Proper storage conditions are essential to maintain the protein's activity and stability. Suppliers typically provide detailed storage instructions, which should be followed meticulously. In case of accidental exposure, standard first aid measures should be taken, and medical advice sought if necessary.

B2B Procurement Guide

When procuring RALBP1 for research or commercial purposes, several factors should be considered to ensure quality and reliability. First, verify the supplier's reputation and request a Certificate of Analysis (COA) to confirm the protein's purity and activity. Purity levels of 90% or higher are generally preferred for research applications. Price ranges can vary significantly depending on the supplier and purity level, with research-grade RALBP1 typically costing between $200 and $500 per mg. Bulk purchases may offer cost savings, but it's essential to assess storage capabilities to prevent degradation. Additionally, consider the supplier's customer support and technical assistance, especially for specialized applications.