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StressMarq/Anti-CXCR4 Antibody/SPC-1293D-STR/100-µl

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SPC-1293D-STR

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Overview:

Product Name CXCR4 Antibody

Description

Rabbit Anti-Human CXCR4 Polyclonal

Species Reactivity Human, Mouse, Rat

Applications WB, IHC

Antibody Dilution WB (1:2000), IHC (1:200); optimal dilutions for assays should be determined by the user.

Host Species Rabbit

Immunogen Species Human

Immunogen A synthesized peptide derived from human CXCR4

Conjugates

Alkaline Phosphatase, APC, ATTO 390, ATTO 488, ATTO 565, ATTO 594, ATTO 633, ATTO 655, ATTO 680, ATTO 700, Biotin, FITC, HRP, PE/ATTO 594, PerCP, RPE, Streptavidin, Unconjugated

PerCP

Overview:

Peridinin-Chlorophyll-Protein Complex
Small phycobiliprotein
Isolated from red algae
Large stokes shift (195 nm)
Molecular Weight: 35 kDa

PerCP Datasheet

PerCP Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 482 nm

λ_em = 677 nm

ε_max = 1.96 x 10⁶

Laser = 488 nm

PE/ATTO 594

PE/ATTO 594 is a tandem conjugate, where PE is excited at 535 nm and transfers energy to ATTO 594 via FRET (fluorescence resonance energy transfer), which emits at 627 nm.

Overview:

High fluorescence yield
High photostability
Very hydrophilic
Excellent solubility in water
Very little aggregation

PE/ATTO 594 Datasheet

PE-ATTO 594 Fluorophore Conjugate Excitation and Emission Spectra

Optical Properties:

λ_ex = 535 nm

λ_em = 627 nm

Laser = 488 to 561 nm

FITC (Fluorescein)

Overview:

Excellent fluorescence quantum yield
High rate of photobleaching
Good solubility in water
Broad emission spectrum
pH dependent spectra
Molecular formula: C₂₀H₁₂O₅
Molar mass: 332.3 g/mol

FITC-Fluorescent-conjugate

FITC Fluorescein Fluorophore Excitation and Emission Spectra

Optical Properties:

λ_ex = 494 nm

λ_em = 520 nm

ε_max = 7.3×10⁴

Φ_f = 0.92

τ_fl = 5.0 ns

Brightness = 67.2

Laser = 488 nm

Filter set = FITC

ATTO 700

Overview:

High fluorescence yield
Excellent thermal and photostability
Quenched by electron donors
Very hydrophilic
Good solubility in polar solvents
Zwitterionic dye
Molar Mass: 575 g/mol

ATTO 700 Datasheet

ATTO 700 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 700 nm

λ_em = 719 nm

ε_max = 1.25×10⁵

Φ_f = 0.25

τ_fl = 1.6 ns

Brightness = 31.3

Laser = 676 nm

Filter set = Cy®5.5

ATTO 680

Overview:

High fluorescence yield
Excellent thermal and photostability
Quenched by electron donors
Very hydrophilic
Good solubility in polar solvents
Zwitterionic dye
Molar Mass: 631 g/mol

ATTO 680 Datasheet

ATTO 680 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 680 nm

λ_em = 700 nm

ε_max = 1.25×10⁵

Φ_f = 0.30

τ_fl = 1.7 ns

Brightness = 37.5

Laser = 633 – 676 nm

Filter set = Cy®5.5

ATTO 655

Overview:

High fluorescence yield
High thermal and photostability
Excellent ozone resistance
Quenched by electron donors
Very hydrophilic
Good solubility in polar solvents
Zwitterionic dye
Molar Mass: 634 g/mol

ATTO 655 Datasheet

ATTO 655 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 663 nm

λ_em = 684 nm

ε_max = 1.25×10⁵

Φ_f = 0.30

τ_fl = 1.8 ns

Brightness = 37.5

Laser = 633 – 647 nm

Filter set = Cy®5

ATTO 633

Overview:

High fluorescence yield
High thermal and photostability
Moderately hydrophilic
Good solubility in polar solvents
Stable at pH 4 – 11
Cationic dye, perchlorate salt
Molar Mass: 652.2 g/mol

ATTO 633 Datasheet

ATTO 633 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 629 nm

λ_em = 657 nm

ε_max = 1.3×10⁵

Φ_f = 0.64

τ_fl = 3.2 ns

Brightness = 83.2

Laser = 633 nm

Filter set = Cy®5

ATTO 594

Overview:

High fluorescence yield
High photostability
Very hydrophilic
Excellent solubility in water
Very little aggregation
New dye with net charge of -1
Molar Mass: 1137 g/mol

ATTO 594 Datasheet

ATTO 594 Fluorophore Excitation and Emission Spectrum

Optical Properties:

λ_ex = 601 nm

λ_em = 627 nm

ε_max = 1.2×10⁵

Φ_f = 0.85

τ_fl = 3.5 ns

Brightness = 102

Laser = 594 nm

Filter set = Texas Red®

ATTO 565

Overview:

High fluorescence yield
High thermal and photostability
Good solubility in polar solvents
Excellent solubility in water
Very little aggregation
Rhodamine dye derivative
Molar Mass: 611 g/mol

ATTO 565 Datasheet

ATTO 565 Fluorophore Excitation and Emission Spectra

Optical Properties:

λ_ex = 563 nm

λ_em = 592 nm

ε_max = 1.2×10⁵

Φ_f = 0.9

τ_fl = 3.4 n

Brightness = 10

Laser = 532 nm

Filter set = TRITC

ATTO 488

Overview:

High fluorescence yield
High photostability
Very hydrophilic
Excellent solubility in water
Very little aggregation
New dye with net charge of -1
Molar Mass: 804 g/mol

ATTO 488 Datasheet

ATTO 488 Fluorophore Excitation and Emission Spectra

Optical Properties:

λ_ex = 501 nm

λ_em = 523 nm

ε_max = 9.0×10⁴

Φ_f = 0.80

τ_fl = 4.1 ns

Brightness = 72

Laser = 488 nm

Filter set = FITC

ATTO 390

Overview:

High fluorescence yield
Large Stokes-shift (89 nm)
Good photostability
Moderately hydrophilic
Good solubility in polar solvents
Coumarin derivate, uncharged
Low molar mass: 343.42 g/mol

ATTO 390 Datasheet

ATTO 390 Fluorescent Dye Excitation and Emission Spectra

Optical Properties:

λ_ex = 390 nm

λ_em = 479 nm

ε_max = 2.4×10⁴

Φ_f = 0.90

τ_fl = 5.0 ns

Brightness = 21.6

Laser = 365 or 405 nm

APC (Allophycocyanin)

Overview:

High quantum yield
Large phycobiliprotein
6 chromophores per molecule
Isolated from red algae
Molecular Weight: 105 kDa

APC Datasheet

APC Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 650 nm

λ_em = 660 nm

ε_max = 7.0×10⁵

Φ_f = 0.68

Brightness = 476

Laser = 594 or 633 nm

Filter set = Cy®5

Streptavidin

Properties:

Homo-tetrameric protein purified from Streptomyces avidinii which binds four biotin molecules with extremely high affinity
Molecular weight: 53 kDa
Formula: C₁₀H₁₆N₂O₃S
Applications: Western blot, immunohistochemistry, and ELISA

Streptavidin Datasheet

Biotin

Properties:

Binds tetrameric avidin proteins including Streptavidin and neuravidin with very high affinity
Molar mass: 244.31 g/mol
Formula: C₁₀H₁₆N₂O₃S
Applications: Western blot, immunohistochemistry, and ELISA

Biotin Datasheet

HRP (Horseradish peroxidase)

Properties:

Enzymatic activity is used to amplify weak signals and increase visibility of a target
Readily combines with hydrogen peroxide (H₂O₂) to form HRP-H₂O₂ complex which can oxidize various hydrogen donors
Catalyzes the conversion of:
- Chromogenic substrates (e.g. TMB, DAB, ABTS) into coloured products
- Chemiluminescent substrates (e.g. luminol and isoluminol) into light emitting products via enhanced chemiluminescence (ECL)
- Fluorogenic substrates (e.g. tyramine, homovanillic acid, and 4-hydroxyphenyl acetic acid) into fluorescent products
High turnover rate enables rapid generation of a strong signal
44 kDa glycoprotein
Extinction coefficient: 100 (403 nm)
Applications: Western blot, immunohistochemistry, and ELISA

HRP Datasheet

AP (Alkaline Phosphatase)

Properties:

Broad enzymatic activity for phosphate esters of alcohols, amines, pyrophosphate, and phenols
Commonly used to dephosphorylate the 5’-termini of DNA and RNA to prevent self-ligation
Catalyzes the conversion of:
- Chromogenic substrates (e.g. pNPP, naphthol AS-TR phosphate, BCIP) into coloured products
- Fluorogenic substrates (e.g. 4-methylumbelliferyl phosphate) into fluorescent products
Molecular weight: 140 kDa
Applications: Western blot, immunohistochemistry, and ELISA

AP Datasheet

R-PE (R-Phycoerythrin)

Overview:

Broad excitation spectrum
High quantum yield
Photostable
Member of the phycobiliprotein family
Isolated from red algae
Excellent solubility in water
Molecular Weight: 250 kDa

R-PE Datasheet

R-PE Fluorophore Excitation and Emission Spectra

Optical Properties:

λ_ex = 565 nm

λ_em = 575 nm

ε_max = 2.0×10⁶

Φ_f = 0.84

Brightness = 1.68 x 10³

Laser = 488 to 561 nm

Filter set = TRITC

Properties

Storage Buffer	PBS pH 7.4, 50% glycerol, 150mM NaCl, 0.02% sodium azide
Storage Temperature	-20ºC
Shipping Temperature	Blue Ice or 4ºC
Purification	Affinity Purified
Clonality	Polyclonal
Isotype	IgG
Specificity	Detects ~45kDa, endogenous levels of total CXCR4.
Cite This Product	StressMarq Biosciences Cat# SPC-1293, RRID: AB_2713079
Certificate of Analysis	A 1:1000 dilution of SPC-1293 was sufficient for detection of CXCR4 in 10 µg of K562 cell lysates by ECL immunoblot analysis using Goat Anti-Rabbit IgG:HRP as the secondary antibody.

Biological Description

Alternative Names	C-X-C chemokine receptor type 4 Antibody, CD184 Antibody, CD184 antigen Antibody, Chemokine (C X C motif) receptor 4 Antibody, Chemokine CXC Motif Receptor 4 Antibody, CXC-R4 Antibody, CXCR-4 Antibody, CXCR4 Antibody, CXCR4_HUMAN Antibody, D2S201E Antibody, FB22 Antibody, Fusin Antibody, HM89 Antibody, HSY3RR Antibody, LAP 3 Antibody, LAP3 Antibody, LCR1 Antibody, LESTR Antibody, Leukocyte derived seven transmembrane domain receptor Antibody, Leukocyte-derived seven transmembrane domain receptor Antibody, Lipopolysaccharide associated protein 3 Antibody, Neuropeptide Y receptor Y3 Antibody, NPY3R Antibody, NPYR Antibody, NPYRL Antibody, NPYY3 Antibody, NPYY3R Antibody, Probable G protein coupled receptor lcr1 homolog Antibody, SDF 1 receptor Antibody, SDF-1 receptor Antibody, SEVEN-TRANSMEMBRANE-SEGMENT RECEPTOR Antibody, Stromal cell derived factor 1 receptor Antibody, Stromal cell-derived factor 1 receptor Antibody, WHIM Antibody
Research Areas	Cancer, Neuroscience
Cellular Localization	Cell Junction, Cell membrane, Early endosome, Late Endosome, Lysosome
Accession Number	NP_003458.1
Gene ID	7852
Swiss Prot	P61073
Scientific Background	C-X-C chemokine receptor type 4 (CXCR-4) is a protein that in humans is encoded by the CXCR4 gene, also known as fusin or CD184 (cluster of differentiation 184). Chemokines and their receptors direct migration of distinct leukocyte subsets to sites of inflammation and to their specific niches in lymphoid organs. Virtually all T cell chemoattractants selectively attract memory/activated T cells. C-X-C chemokine receptor type 4 is involved in haematopoiesis and in cardiac ventricular septum formation. Plays also an essential role in vascularization of the gastrointestinal tract, probably by regulating vascular branching and/or remodeling processes in endothelial cells. It has been associated with WHIM syndrome. WHIM like mutations in CXCR4 were recently identified in patients with Waldenstrom's macroglobulinemia, a B-cell malignancy.
References	1. Moriuchi M. et al. (1997) Journal of Immunology 159 (9): 4322–9. 2. Caruz A. et al. (1998) FEBS Letters 426 (2): 271–8. 3. Balabanian K. et al. (2008) The Journal of Clinical Investigation 118 (3): 1074–84. 4. Hunter Z.R. et al. (2014) Blood 123 (11): 1637–46.

Product Images

<p>Western blot analysis of Human K562 cell lysates showing detection of ~39kDa CXCR4 protein using Rabbit Anti-CXCR4 Polyclonal Antibody (SPC-1293). Lane 1: Human K562 cell lysate treated with the immunizing peptide. Lane 2: Human K562 cell lysate. Primary Antibody: Rabbit Anti-CXCR4 Polyclonal Antibody (SPC-1293) at 1:1000. Predicted/Observed Size: ~39kDa.</p>

Western blot analysis of Human K562 cell lysates showing detection of ~39kDa CXCR4 protein using Rabbit Anti-CXCR4 Polyclonal Antibody (SPC-1293). Lane 1: Human K562 cell lysate treated with the immunizing peptide. Lane 2: Human K562 cell lysate. Primary Antibody: Rabbit Anti-CXCR4 Polyclonal Antibody (SPC-1293) at 1:1000. Predicted/Observed Size: ~39kDa.

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Streptavidin

Properties:

Homo-tetrameric protein purified from Streptomyces avidinii which binds four biotin molecules with extremely high affinity
Molecular weight: 53 kDa
Formula: C₁₀H₁₆N₂O₃S
Applications: Western blot, immunohistochemistry, and ELISA

Streptavidin Datasheet

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电泳法的电泳缓冲液123

未成年NF162021-08-14

电泳缓冲液还有一个组分是EDTA（乙二胺四乙酸），加入浓度为1-2mmol/L，目的是螯合Mg2+ 等离子，防止电泳时激活 DNA酶，此外还可防止Mg2+离子与核酸生成沉淀。
此外，我们常常用“电泳法”判断液体的性质，是胶体还是溶液。在高中化学中我们就用过这种方法判断给定的液体是否为胶体。向左转|向右转

【评测】High Five昆虫细胞培养基123

angel_lei2021-07-25

急需TricineSDS-PAGE电泳中阴阳电泳缓冲液的配置！
谢谢各位了。
我找了几篇文章，但是写的都很含糊，不知道有没有找到具体的数据的？

电泳法分离蛋白质时,缓冲液的离子强度的一般要求是A.0.01～0.05B....123

想自由zJ72021-07-28

离子强度是表示溶液中电荷数量的一种量度，等于溶液中各种离子的摩尔浓度与其价数平方之积总和的一半。
低离子强度时，迁移率快。但离子强度过低，缓冲液的缓冲容量小，不易维持pH恒定。高离子强度时迁移率慢，因此为了获得更快的反应速度，在缓冲容量允许的范围内，离子强度应该尽可能小。

【求助】人血清脂蛋白琼脂糖凝胶电泳缓冲液蛋白质和糖学技术...123

czp862021-07-22

本人对电泳了解不多，现在有个问题向大家求教；我做的是人血清脂蛋白琼脂糖凝胶电泳，我看文献上基本上是写的是用Tris-巴比妥缓冲液，但现在巴比妥和巴比妥钠很贵，用量很大，而且还买不到！我想问下可不可用其他什么缓冲液代替一下？请帮忙，谢谢大家了

【求助】为什么我的SDSPAGE电泳时电泳缓冲液变浑浊呢?123

戀█重量█p82017-10-02

原因可能如下：
1. Buffer中离子浓度过大，甘氨酸或者Tris碱有可能疏忽多加了
2.没有加相应浓度的SDS
3.电泳周围温度高，也是一个原因

关于电泳缓冲液,奇怪又好笑的问题蛋白质和糖学技术讨论版...123

灬丨牛牛丨灬2021-07-31

笔者小白，做WB时发现了一个奇怪的问题：

电泳缓冲液购买Solarbio的成品（5X），后稀释成1X工作液。

电泳条件：80V120V（注：内外槽每次用的都是新配液体，未使用回收后液体，且泳槽无漏液现象）

电流仪器：Bio-Rad

奇怪的事情在于：当我设定恒定电压为80V跑的时候，查看电流显示为35mA，且电流数值随着时间变化不断降低，半小时后约降至23mA。

请教大神们，之前有没有遇到这样的问题？这倒底是什么原因造成的，应该如何改善？

【求助】电泳缓冲液能加热吗? 蛋白质和糖学技术讨论版论坛123

02514019q2021-08-12

新手弱弱的请教下在配10x的蛋白电泳缓冲液时,由于迟迟不见溶解,经加热使其溶解,这样会影响溶液里的tris及甘氨酸的性质吗?:?)

电泳缓冲液TAE与TBE,哪个更好? – BioEngX123

coolaber2021-08-03

北京COOLABER隆重推出PBS、TAE、TBE、蛋白电泳缓冲液独立包装预混干粉试剂，配缓冲液像冲咖啡一样简单，您只需要准备容器和水，就一切OK啦！什么计算配比，什么称重，什么调PH值，都去他的！联系电话：010-8244451715132878855400-878-6800QQ:1002073414李云云

【求助】蛋白质page电泳时,电泳缓冲液可以重复使用吗? 经验共享分 ...123

挚爱惠莹S晞2021-08-13

我们实验室用的是：5*SDS-PAGE电泳缓冲液0.125Mtris15.1g,1.25Mglycine94g,0.5%SDS5.0g,加入800ml去离子水，搅拌溶解。加去离子水将溶液定容至1L后，室温保存。用的时候稀释成1*的就可以了。转膜缓冲液的配制方法：39mMglycine2.9g,。

电泳缓冲液浓度对实验时间有影响吗123

才子不才00022017-10-02

电泳缓冲液浓度对实验时间有影响。（如下案例）试验在20-40mmol/L范围内考察了醋酸铵浓度对4中组分分离度的影响。结果发信啊4中组分的迁移时间随醋酸铵浓度的增大而延长，从而分离度得到改善。但是缓冲液浓度越大分析时间也越长，如图3-3所示。向左转|向右转

蛋白质的电泳与溶液的pH有什么关系？某蛋白质的等电点为6.5,如...123

2021-08-07

DNA分子在高于其等电点的pH溶液中中带负电,因为所说的等电点是指蛋白质或两性电解质所带净电荷为零时溶液的pH,此时蛋白质或两性电解质在电场中的迁移率为零.当外界溶液的pH大于两性离子的等电点值,两性离子释放质子带负电；当外界溶液的pH小于两。

SDSPAGE电泳缓冲液的上槽液与下槽液有何区别? 123

轩子TA01942017-10-02

1。阳极缓冲液 ( 10 × ) ：121.14g Tris 溶于400ml 蒸馏水，用 1.0mol/L HCl 调至 pH8.9 ,定容至
500ml
2。阴极缓冲液 ( 10 × ) ：将 60.55g Tris ,89.58g Tricine 及 5g SDS 溶于400ml 蒸馏水中，加水至终体积为500ml
使用时稀释至1×的缓冲液，电泳槽内槽加入阴极电泳缓冲液，外槽加入阳极电泳缓冲液。形成Trcine-SDS-PAGE电泳系统。