OTOR Human, His

Otoraplin Human Recombinant, His Tag
Cat. No.
BT20084
Source
Escherichia Coli.
Synonyms
Otoraplin, Melanoma Inhibitory Activity-Like Protein, Fibrocyte-Derived Protein, FDP, MIAL1, MIAL, Melanoma inhibitory activity-like protein.
Appearance
Sterile Filtered clear solution.
Purity
Greater than 90% as determined by SDS-PAGE.
Usage

THE BioTek's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

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Description

OTOR Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 128 amino acids (26-128 a.a) and having a molecular mass of 14.3kDa.
OTOR is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Product Specs

Introduction
OTOR proteins, also known as fibrocyte-derived protein (Fdp) and Melanoma inhibitory activity-like (MIAL), belong to the melanoma-inhibiting activity gene family. Otoraplin, a member of this family, is a secreted globular protein with a molecular weight of 16 kDa. It is expressed in the inner ear by periotic mesenchyme, as well as developing and mature fibrocytes. OTOR shares significant homology with MIA/cartilage-derived retinoic acid-sensitive protein (CD-RAP), a cartilage-specific protein also found in malignant melanoma cells. The mature human otoraplin comprises 111 amino acids, including a SH3 domain (amino acids 46-107) and a sulfated tyrosine residue at position 50. Otoraplin plays a crucial role in initiating periotic mesenchyme chondrogenesis. Functionally, it is secreted via the Golgi apparatus and contributes to cartilage development and maintenance. Notably, a common polymorphism in the OTOR translation start codon can disrupt translation, potentially leading to deafness.
Description
Recombinant Human OTOR, expressed in E. coli, is a non-glycosylated polypeptide chain comprising 128 amino acids (26-128 a.a.) with a molecular weight of 14.3 kDa. This protein is engineered with a 25 amino acid His-tag at the N-terminus and purified using proprietary chromatographic techniques.
Physical Appearance
A clear, sterile-filtered solution.
Formulation
The OTOR protein is supplied in a solution at a concentration of 0.25 mg/ml. The formulation buffer consists of Phosphate buffered saline (pH 7.4), 30% glycerol, and 1 mM DTT.
Stability
For short-term storage (up to 4 weeks), the product can be stored at 4°C. For extended storage, it is recommended to store the protein at -20°C. The addition of a carrier protein (0.1% HSA or BSA) is advised for long-term storage. To maintain protein integrity, avoid repeated freeze-thaw cycles.
Purity
The purity of OTOR is determined to be greater than 90% using SDS-PAGE analysis.
Synonyms
Otoraplin, Melanoma Inhibitory Activity-Like Protein, Fibrocyte-Derived Protein, FDP, MIAL1, MIAL, Melanoma inhibitory activity-like protein.
Source
Escherichia Coli.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSHMLASKK LCADDECVYT ISLASAQEDY NAPDCRFINV KKGQQIYVYS KLVKENGAGE FWAGSVYGDG QDEMGVVGYF PRNLVKEQRV YQEATKEVPT TDIDFFCE.

Product Science Overview

Introduction

Otoraplin, also known as OTOR, is a protein encoded by the OTOR gene. It is a member of the melanoma-inhibiting activity (MIA) gene family, which includes proteins such as melanoma inhibitory activity protein 3 (MIA3). Otoraplin is a secreted cytokine that plays a significant role in various biological processes, including cartilage development and maintenance, as well as potential therapeutic applications in cancer treatment .

Gene and Protein Structure

The OTOR gene is located on chromosome 20 and encodes the Otoraplin protein. The protein is secreted via the Golgi apparatus and is involved in several cellular functions. A frequent polymorphism in the translation start codon of this gene can abolish translation and may be associated with forms of deafness .

Function and Mechanism

Otoraplin has several key functions:

  1. Cartilage Development: It is believed to play a role in the development and maintenance of cartilage throughout the human body. This includes early chondrogenesis of the otic capsule, which is essential for inner ear development and auditory function .
  2. Cancer Treatment: Otoraplin has shown potential in inhibiting melanoma by promoting “suicide gene therapy” in malignant melanoma. This means that Otoraplin encourages cancer cells to undergo apoptosis (programmed cell death), which can be an effective treatment for melanoma .
  3. Cell Migration: Otoraplin acts as a regulator of cell migration. At lower concentrations, it stimulates cell migration, while at higher concentrations, it inhibits cell migration .
Recombinant Otoraplin (His Tag)

Recombinant Otoraplin with a His tag is a form of the protein that has been genetically engineered to include a polyhistidine tag. This tag facilitates the purification and detection of the protein in laboratory settings. The His tag allows for easy binding to nickel or cobalt ions, which can be used to isolate the protein from a mixture of other proteins and cellular components .

Clinical and Research Applications

Otoraplin’s potential applications are still being explored, but it has shown promise in several areas:

  • Melanoma Treatment: As mentioned, Otoraplin’s ability to induce apoptosis in melanoma cells makes it a potential candidate for cancer therapy .
  • Cartilage Repair: Its role in cartilage development suggests potential therapeutic benefits for conditions involving cartilage damage or degeneration .
  • Hearing Disorders: Given its involvement in inner ear development, mutations or disruptions in the OTOR gene may be linked to hearing disorders, making it a target for further research in this area .

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