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StressMarq/Anti-ULK2 Antibody/SPC-641D-APC/100-µg

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SPC-641D-APC

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Overview:

Product Name ULK2 Antibody

Description

Rabbit Anti-Human ULK2 Polyclonal

Species Reactivity Human, Rat

Applications WB, ICC/IF

Antibody Dilution WB (1:1000), ICC/IF (1:100); optimal dilutions for assays should be determined by the user.

Host Species Rabbit

Immunogen Species Human

Immunogen Synthetic peptide from the mid-protein of Human ULK2 (aa. 558-569)

Concentration 1 mg/ml

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, 50% glycerol, 0.09% sodium azide
Storage Temperature	-20ºC
Shipping Temperature	Blue Ice or 4ºC
Purification	Peptide Affinity Purified
Clonality	Polyclonal
Specificity	Detects ~100 kDa.
Cite This Product	StressMarq Biosciences Cat# SPC-641, RRID: AB_2705285
Certificate of Analysis	A 1:1000 dilution of SPC-641 was sufficient for detection of ULK2 in 15 µg of Human HeLa Cell Lysates by ECL immunoblot analysis using goat anti-rabbit IgG:HRP as the secondary antibody.

Biological Description

Alternative Names	Serine/threonine-protein kinase ULK2 Antibody, EC:2.7.11.1 Antibody, Unc 51 (C. elegans) like kinase 2 Antibody, ULK2_HUMAN Antibody, KIAA0623 Antibody, ATG1B Antibody, Serine/threonine protein kinase ULK2 Antibody, Unc-51-like kinase 2 Antibody, Unc 51 like autophagy activating kinase 2 Antibody, Unc51.2 Antibody, ULK2 Antibody, Unc 51 like kinase 2 Antibody
Research Areas	Cell Signaling, Protein Phosphorylation, Serine / Threonine Kinases
Cellular Localization	Cytoplasmic vesicle membrane, Peripheral membrane protein
Accession Number	NP_001136082.1
Gene ID	9706
Swiss Prot	Q8IYT8
Scientific Background	UNC-51 like kinase 2 (ULK2) is widely expresed and contains an amino-terminal kinase domain followed by a central proline-serine rich domain and a highly conserved carboxy-terminal domain. It has been linked to axon growth and is essential for autophagy. Structurally, ULK2 is similar to ATG1.
References	1. Okazaki N., et al. (2000) Brain Res Mol Brain Res. 85: 1-12. 2. Young A.R., et al. (2006) J Cell Sci. 119: 3888-900. 3. Kamada Y., et al. (2000) J Cell Biol. 150: 1507-13. 4. Lee S.B, et al. (2007) EMBO Rep. 8: 360-5. 5. Hara T., et al. (2008) J Cell Biol. 181: 497-510.

Product Images

<p>Western blot analysis of Human HeLa cell lysates showing detection of 112.7 kDa ULK2 protein using Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641). Lane 1: Molecular Weight Ladder (MW). Lane 2: Human HeLa cell lysates. Load: 15 µg . Block: 5% Skim Milk in 1X TBST. Primary Antibody: Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641) at 1:1000 for 1 hour at RT. Secondary Antibody: Goat Anti-Rabbit HRP at 1:2000 for 60 min at RT. Color Development: ECL solution for 6 min in RT. Predicted/Observed Size: 112.7 kDa. Other Band(s): ~70 kDa.</p>

Western blot analysis of Human HeLa cell lysates showing detection of 112.7 kDa ULK2 protein using Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641). Lane 1: Molecular Weight Ladder (MW). Lane 2: Human HeLa cell lysates. Load: 15 µg . Block: 5% Skim Milk in 1X TBST. Primary Antibody: Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641) at 1:1000 for 1 hour at RT. Secondary Antibody: Goat Anti-Rabbit HRP at 1:2000 for 60 min at RT. Color Development: ECL solution for 6 min in RT. Predicted/Observed Size: 112.7 kDa. Other Band(s): ~70 kDa.

<p>Immunocytochemistry/Immunofluorescence analysis using Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641). Tissue: SK-N-BE Cells (Human Neuroblastoma cells). Species: Human. Fixation: 4% Formaldehyde for 15 min at RT. Primary Antibody: Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641) at 1:100 for 60 min at RT. Secondary Antibody: Goat Anti-Mouse ATTO 488 at 1:200 for 60 min at RT. Counterstain: Phalloidin Texas Red F-Actin stain; DAPI (blue) nuclear stain at 1:1000, 1:5000 for 60 min at RT, 5 min at RT. Localization: Cytoplasmic Vesicle Membrane, Peripheral Membrane Protein. Magnification: 60X. (A) DAPI (blue) nuclear stain (B) Phalloidin Texas Red F-Actin stain (C) ULK2 Antibody (D) Composite.</p>

Immunocytochemistry/Immunofluorescence analysis using Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641). Tissue: SK-N-BE Cells (Human Neuroblastoma cells). Species: Human. Fixation: 4% Formaldehyde for 15 min at RT. Primary Antibody: Rabbit Anti-ULK2 Polyclonal Antibody (SPC-641) at 1:100 for 60 min at RT. Secondary Antibody: Goat Anti-Mouse ATTO 488 at 1:200 for 60 min at RT. Counterstain: Phalloidin Texas Red F-Actin stain; DAPI (blue) nuclear stain at 1:1000, 1:5000 for 60 min at RT, 5 min at RT. Localization: Cytoplasmic Vesicle Membrane, Peripheral Membrane Protein. Magnification: 60X. (A) DAPI (blue) nuclear stain (B) Phalloidin Texas Red F-Actin stain (C) ULK2 Antibody (D) Composite.

Product Citations (0)

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APC (Allophycocyanin)

Overview:

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

APC Datasheet

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

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【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

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。

蛋白Mops电泳缓冲液是怎么回事儿– 960问答123

浮1502017-10-02

MOPS电泳缓冲液、胚胎干细胞培养生长因子、动物肝细胞分离培养试剂盒、结晶紫细胞群落染色试剂盒、MFN-2蛋白表达检测试剂盒、血红细胞溶解液、磷酸缓冲盐溶液、Hanks平衡盐粉剂、胰蛋白酶溶液、氯霉素溶液等产品由上海哈灵生物有限公司提供

【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

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。

【求助/交流】蛋白电泳缓冲液分子生物综合其他论坛...123

coolaber2021-07-20

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

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？

DNA凝胶电泳常用试剂配制123

夏轩V碕猃22021-07-21

TAE,TBE

【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