中文名：環(huán)(L-亮氨酰-L-色氨酰)）

英文名：cyclo(Leu-Trp)

cyclo(Trp-Leu)(main chain cyclo)?

c(Leu-Trp)

cyclo-L-Trp-L-Leu

Cyclo(L-Leu-L-Trp)

cyclo(LW)(main chain cyclo)?

CAS：15136-34-2

所屬分類(lèi)：Bifunctional chelato

PSA：49.41000

等電點(diǎn)(PI): 6.11

pH=7.0時(shí)的凈電荷數(shù): -0.02

平均親水性: -2.6

疏水性值: 1.45?

一、Product parameters：

1.Molecular formula：C17H21N3O2

2.Molecular weight：299.38

3.Packaging specification：1g、5g、10g, flexible packaging, including 100mg packaging and 500mg 1g and 5g large packaging

Product structure：

二、Reaction characteristics：

cyclo(Leu-Trp)中文名是環(huán)(L-亮氨酰-L-色氨酰)，它是一種環(huán)二肽。環(huán)二肽又叫2,5-二酮哌嗪的衍生物,作為環(huán)肽成員中最小的一類(lèi)環(huán)肽，Minamiura等人通過(guò)細(xì)菌蛋白酶從酪蛋白水解液中分離出二酮哌嗪環(huán)（Leu Trp）。它是奶酪中檢測(cè)到的苦味化合物之一。

活性氧是指機(jī)體內(nèi)由氧形成、含氧而且性質(zhì)活潑的一些物質(zhì)的總稱(chēng):主要的有二種含氧的自由基,即超氧陰離子(O2·-)和羥自由基(·OH)。活性氧平衡,所謂活性氧是指超氧化物的陰離子(O2-)、過(guò)氧化氫(H2O2)和羥基(-OH).這種活性氧是涉及電子傳遞的生化過(guò)程中的一種正常的代謝產(chǎn)物,但它及時(shí)地被除去,以維持一個(gè)低水平的動(dòng)態(tài)平衡。

三、Matters for use：

It is sensitive to light and temperature. In order to use the reagent effectively, the material should always be kept in a low temperature dry condition, away from light, and avoid frequent thawing and freezing.

四、storage conditions:

Store at - 20 ℃ as much as possible. If conditions permit, the material can be treated under inert gas to obtain better stability of the reagent.

相關(guān)試劑：

Cyclo(-Val-Tyr)

Cyclo(Leu-Trp)

Cyclo(-Leu-Trp)

cyclo(L-Leu-L-Trp)

Cyclo(Met-Tyr)

Cyclo(-Met-Tyr)

cyclo(L-Leu-L-Thr)

Cyclo(Tyr-His)

Cyclo(-Tyr-His)

cyclo(L-Leu-L-Ser)

H-Leu-Trp-OH

Cyclo(Gly-Phe)

Cyclo(-Gly-Phe)

Cyclo(Pro-Val)

cis-cyclo(Val-Leu)

cyclo(L-Pro-L-Trp-L-Val-L-Pro-L-Leu-L-Ile-L-Pro-L-Ile)

cyclo(Arg-Gly-Asp-D-Tyr-Cys)

DOTA-cyclo(RGDyK)，DOTA-cyclo(RGDyK)

Cyclo(-Arg-Gly-Asp-D-Phe-Lys)

cyclo(L-Pro-L-Trp-L-Ile-L-Pro-L-Leu-L-Thr-L-Pro-L-Leu)

Cyclo(-Arg-Gly-Asp-D-Tyr-Lys)

Cyclo(-Gly-Arg-Gly-Asp-Ser-Pro)

Cyclo(-Arg-Ala-Asp-D-Tyr-Lys)

Cyclo(L-Leu-D-Phe-L-Pro-L-Val-L-Orn-)

Cyclo(7-aminoheptanoyl-Phe-D-Trp-Lys-Thr[Bzl])

cyclo(DPhe-His-Trp-Ala-Val-Gly-His-Leu-Leu)

Cyclo(L-Leu-trans-4-hydroxy-L-Pro)?

（上述信息均由陜西新研博美生物科技有限公司的小編木木所整理）