P7208

Pertussis toxin

from Bordetella pertussis, lyophilized powder, protein endotoxin

• 동의어(들): Histamine-sensitizing factor, IAP, Islet Activating Protein, PTX, Pertussigen
• CAS Number: 70323-44-3
• MDL number: MFCD00131841
• UNSPSC 코드: 12352200
• NACRES: NA.77

속성

• product name: Pertussis toxin from Bordetella pertussis, lyophilized powder
• 형태: lyophilized powder
• Quality Level: 200
• 저장 온도: 2-8°C
• 유전자 정보: Bordetella pertussis Tohama I ... ptxA(2665068) , ptxB(2665069) , ptxC(2665408)

설명

일반 설명

Pertussis toxin (PT) is a multi-subunit complex toxin that possesses one active subunit(A) and five binding subunits (B5). PT enters the mammalian cells via endocytosis by attaching itself to the glycosylated molecules on the surface of these cells.

애플리케이션

Pertussis toxin from Bordetella pertussis has been used: as a blocker of the G_αi subunit of the chemokine (CXCR4) receptor to measure the intracellular Ca²⁺ in breast cancer cell lines, to characterize the Gi signaling involved in ADP-induced tissue factor (TF) and P-selectin exposure, to induce autoimmune vasculitis in a rat model

The toxin is released from B. pertussis in an inactive form. When the pertussis toxin B oligomer binds to the cell membrane, the S1 subunit of its A protomer becomes activated, perhaps through the action of glutathione and ATP. A protocol for activating pertussis toxin in vitro is given by Kaslow, et al.

생화학적/생리학적 작용

Pertussis toxin catalyzes the ADP-ribosylation of the α subunits of the heterotrimeric guanine nucleotide regulatory proteins G_i, G_o, and G_t. This prevents the G protein heterotrimers from interacting with receptors, thus blocking their coupling and activation. Since the G_α subunits remain in their GDP-bound, inactive state, they are unable to inactivate adenylyl cyclase or open K⁺ channels.

특징 및 장점

This compound is a featured product for Cyclic Nucleotide research. Click here to discover more featured Cyclic Nucleotide products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.

This compound is featured on the G Proteins (Heterotrimeric) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

물리적 형태

Lyophilized powder containing sodium chloride and sodium phosphate buffer salts

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H315,H319,H335
• 예방조치 성명서: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges