SKU: 36009651203

IL-2 Protein, Human

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Description

IL-2 Protein, HumanProduct Specification Species Human Synonyms IL 2,interleukin 2 Accession P60568 Amino Acid Sequence Ala21 Thr153 with an N terminal Met Expression System E. coli Molecular Weight Approximately 15. 5 kDa, a single non glycosylated polypeptide chain containing 134 amino acids Purity 98% by SDS PAGE or HPLC. Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized Powder Storage Buffer 20 mM PB, pH 3. 5. Reconstitution Before use this

Product Specification


Species Human
Synonyms IL-2,interleukin-2
Accession P60568
Amino Acid Sequence

Ala21-Thr153 with an N-terminal Met

Expression System E.coli
Molecular Weight

Approximately 15.5 kDa, a single non-glycosylated polypeptide chain containing 134 amino acids

Purity >98% by SDS-PAGE or HPLC.
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer

20 mM PB, pH 3.5.

Reconstitution

Before use this product, please read the direction below carefully.

This vial must be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in a sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/ml.

Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃.

Further dilutions should be made in appropriate buffered solutions.

Stability & Storage

For long term storage, the product should be stored ≤ -20℃.
Please avoid repeated freeze-thaw cycles after reconstitution.
12 months from date of receipt, -20 to -70℃ as supplied.
1 month, 2 to 8℃ under sterile conditions after reconstitution.
3 months, -20 to -70℃ under sterile conditions after reconstitution.

Background

IL-2 is a powerful immunoregulatory lymphokine produced by T cells in response to antigenic or mitogenic stimulation. IL-2/IL-2R signaling is required for T cell proliferation and other fundamental functions that are essential for the immune response. IL-2 stimulates growth and differentiation of B cells, NK cells, lymphokine-activated killer cells, monocytes, macrophages and oligodendrocytes. Recombinant Human IL-2 is a 15.5 kDa protein, containing 134 amino acid including one intrachain disulfide bond.

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SKU: 36009651203

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4.8 ★★★★★
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Verified Purchase
Ng Meowster
Whiting, US
★★★★★ 2
Good to have if you've never seen the iTEP exam, but don't rely on it to boost your scores
Format: Paperback
This book is good in that it comes with two practice tests: one in the beginning of the book, one in the end of the book. The grading rubric is helpful too. However, the actual guide part of the book, doesn't help too much with how to improve test scores. What I like least about this guide is that it won't tell you which questions you answered incorrectly on the practice exams. A good test prep guide will tell you what you answered incorrectly, and will tell you what logic to follow to get to the correct answer. In the reading passages, it would be nice to know where I can find evidence to justify the "correct" answer. In the grammar section, it would be nice to know which rule I'm violating. Any test guide should always come with some testing strategies. I.E. If this question is taking up too much time, skip it and go to the next one. This guide lacks simple strategies like that. Simple strategies like that could be useful when incorporated into this guide because there are certain sections on the exam that you can go back to previous questions, but some sections where the "back" button is disabled. Overall, if you've never seen an iTEP exam before, this book is certainly helpful in that it will give you an idea of what you will be testing for. However, this book alone won't help you achieve a score of 6. The table of contents itself will tell you there are only 86 pages of actual content covering test material. That's not enough to cover how to excel in the exam.
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Reviewed in the United States on January 27, 2015
C
Verified Purchase
Cliente Amazon
West Palm Beach, US
★★★★★ 1
Don't buy it
Format: Paperback
It does not prepare for the real test. Using it is absolutely not enough to be approved with good grades. Too expensive for what it offers.
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Reviewed in the United States on October 21, 2016
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Verified Purchase
Xiaomeng Han
Birmingham, US
★★★★★ 5
Five Stars
Format: Paperback
great
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Reviewed in the United States on September 18, 2016
G
Verified Purchase
Guanxiong Xue
New York, US
★★★★★ 5
go o o o o
Format: Paperback
go o o o o d
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Reviewed in the United States on October 21, 2014
R
Verified Purchase
Ryan
Lowell, US
★★★★★ 1
One Star
Format: Paperback
Exactly the same as the free PDF I downloaded online for my student, only this costs $26 plus tax.
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Reviewed in the United States on April 3, 2017

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