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Ordering Information

  • : 16-103
  • : 100 µg
  • : 1 mg/mL
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  • Product Family Information

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Western Blot Analysis:
Representative lot data.
EGF treated A431 lysate was resolved by electrophoresis, transferred to PVDF membrane and pr...

Anti-Phosphotyrosine, clone 4G10®, Biotin Conjugate

Species Reactivity Key Applications Host Format Antibody Type
A IC, IP, WB Mouse Biotin Monoclonal Antibody
Description:
Anti-Phosphotyrosine, clone 4G10®, Biotin Conjugate
Trade Name:
Upstate (Millipore)
Product Overview:
Anti-phosphotyrosine monoclonal antibody, clone 4G10 (cat.# 05-321), cross-linked to biotin.
Specificity:
Recognizes tyrosine-phosphorylated proteins from all species.
Molecular Weight:
Dependent upon the molecular weight of the tyrosine phosphorylated protein being detected.
Epitope:
Immunogen:
Phosphotyramine-KLH.
Modifications:
Phosphorylation
Clone:
4G10®
Isotype:
IgG2bκ
Background Information:
Some of the tyrosine residues can be tagged with a phosphate group (phosphorylated) by protein kinases. (In its phosphorylated state, it is referred to as phosphotyrosine.). Tyrosine phosphorylation is considered as one of the key steps in signal transduction and regulation of enzymatic activity. The advent of anti-phospho-tyrosine antibodies is one of significant events in signal transduction research. Before the availability of anti-phosphotyrosine antibodies, tyrosyl phospyhorylation of proteins and enzymes was investigated through hazardous and time-consuming radioactive experiments. Anti-phosphotyrosine antibodies are commonly used in western blots after the targeted proteins have been immunoprecipitated to measure the tyrosyl phosphorylation of the proteins. Anti-phosphotyrosine antibodies are also directly used on cell lysate to examine the overall change of tyrosine phosphorylation level in response to various treatments.

Description
Anti-phosphotyrosine monoclonal antibody, clone 4G10® (cat. # 05-321), cross-linked to biotin.
Species Reactivity:
Species Reactivity Note:
Human. Expected to cross-react with rat and mouse.
Application Notes:
Immunoprecipitation:
4 μg of a previous lot, used in conjunction with Streptavidin, agarose conjugate (Catalog # 16-126), immunoprecipitated phosphotyrosine containing proteins from a lysate of EGFstimulated A431 cells.
Note: To preserve phosphotyrosine, add 0.2 mM sodium orthovanadate to the lysis buffer.

Immunocytochemistry:
5-10 μg/mL of a previous lot gave positive immunostaining of EGF-stimulated A431 cells that had been fixed with ethanol:acetic acid [1:1].

Application Notes
For use in applications in which a biotin conjugate is advantageous, such as WB and IC.
Control:
Pervanadate-treated human A431 cell extracts or EGF-treated human A431 cells
Quality Assurance:
Routinely evaluated by Western Blot on EGF treated A431 lysates.

Western Blot Analysis:
1:500 dilution of this lot detected Tyrosine phosphorylated proteins on 10 μg of EGF treated A431 lysates.
Purification Method:
Protein G purfied
Presentation:
PBS containing 0.05% sodium azide.
Storage Conditions:
9 months at 2-8°C from date of shipment. NOTE: DO NOT FREEZE. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
Usage Statement:
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Key Applications:
  • Immunocytochemistry
  • Immunoprecipitation
  • Western Blotting
Brand Family:
Upstate
Protein/Isoform Description:
Protein Tyrosine phosphorylation was first described in 1979. The development of the Anti-Phosphotyrosine, clone 4G10 in 1989 was a monumental discovery for researchers. 4G10 is the first and best single monoclonal antibody for the detection of tyrosine phosphorylation. It is the most highly cited (75% of related scientific journal articles over the last three years) and validated phosphotyrosine antibody available. It consistently produces high quality, reproducible data, and has been validated by thousands of scientific and medical researchers in virtually every application and tyrosine target over the past 18 years. In addition to its unparalleled characterization and applicability, 4G10 is well known as one of the most sensitive anti-phosphotyrosines. Now Millipore is excited to announce that we have taken the sensitivity for phosphotyrosine detection to the next level. To improve on something that hundreds have tried and none have succeeded, we pooled 4G10 with the next most highly regarded Anti-phosphotyrosine, clone PY20 to make 4G10 Platinum. PY20 itself is a very poor substitute for 4G10, but its additive effect allows for a greater level of detection on more substrates that even 4G10 alone was capable of.
Product Name:
Anti-Phosphotyrosine, clone 4G10®, Biotin Conjugate
Concentration:
1 mg/mL
Antibody Type:
Monoclonal Antibody
Qty/Pk:
100 µg
Format:
Biotin
Host:
Mouse

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