小分子交联剂蛋白-蛋白以及蛋白-核酸大分子复合体材料

小分子交联剂蛋白-蛋白以及蛋白-核酸大分子复合体材料

小分子化学交联剂结合现代化的交联质谱技术是一种新兴的研究蛋白蛋白以及蛋白核酸大分子复合体的有力手段。目前常用的小分子交联剂主要与目标蛋白Lys氨基酸残基反应,并且不具有时空分辨率。发展小分子交联剂能够特异性与多个氨基酸残基进行交联并具有时空分辨率能够极大促进蛋白质相互作用的研究。

带有光保护的醌甲基化物(QM)小分子化学交联剂。使用这些交联剂,可以通过远紫外光(365 nm)诱导从而特异性的释放活化的醌甲基化物进行蛋白质蛋白质以及蛋白质核酸之间的交联。这种策略不仅能够使得蛋白交联获得时间分辨率,引入的强活性的醌甲基化物可与许多邻近的亲核性的残基,如 HisLysTyr 等侧链反应而产生蛋白交联。并且这些交联剂不仅使适用单个蛋白的交联,也可以在细胞裂解液以及在活体细胞中诱导蛋白蛋白发生化学交联。

小分子交联剂蛋白-蛋白以及蛋白-核酸大分子复合体材料

合成一端带有醌甲基化物前体,另一端带有NHS酯基的小分子化学交联剂(NHQM)。通过对14-3-3 目标蛋白紫外光照射与否以及加不加NHQM交联剂处理,发现只有在加入NHQM交联剂并且紫外光照射下才会诱导产生14-3-3二聚体。并且这种二聚体的产生可以很好的通过光控实时的产生。进一步证明了NHQM交联剂的其中一个实用性可以快速鉴别蛋白聚合情况,并且利用化学交联质谱鉴别了在14-3-3蛋白上与醌甲基化物反应的亲和性残基。与文献报道的醌甲基化物的强活性一致,NHQM 可以与大多数亲和性残基发生反应,包括之前没有报道过的GlnArgAsn弱的亲核基团发生交联。

小分子交联剂蛋白-蛋白以及蛋白-核酸大分子复合体材料

接着,测试了NHQM在活体细胞内的交联情况,发现细胞体内交联效率较弱,这可能与短时间内NHQM穿膜性和溶解性差有关,而增长穿膜时间NHS会快速水解从而使交联失效。为了解决这一问题,合成了两端都带有光保护基团的醌甲基化物前体(HoQM)并并证明它可以用于细菌细胞以及哺乳动物细胞内诱导蛋白分子间交联,并且具有时间选择性。除了用于蛋白蛋白交联,醌甲基化物可以修饰核酸,后证明了NHQM交联剂也可以通过光控诱导蛋白核酸交联。

小分子交联剂蛋白-蛋白以及蛋白-核酸大分子复合体材料

金畔供应产品:

产品列表:

DHB

2,5-dihydroxybenzoic acid

CAS Number: 490-79-9

CHCA

α-Cyhaio-4-hydroxycinnamic acid

CAS Number: 28166-41-8

HABA

2-(4'-Hydroxybenzeneazo)benzoic acid

CAS Number: 1634-82-8

Sinapinic Acid  

CAS Number: 530-59-6

THAP

2',4',6'-Trihydroxyacetophenone monohydrate

CAS Number: 480-66-0

DHAP

2',4',-Dihydroxyacetophenone

CAS Number: 89-84-9

MBT

MBT MALDI matrix, 2-Mercaptobenzothiazole

CAS Number: 149-30-4

 

 

色谱相关试剂

产品列表:

LCMS Grade Solvents

LCMS Acetonitrile     CAS Number: 75-05-8

LCMS Acetonitrile with 0.1% Acetic Acid

LCMS Acetonitrile with 0.1% Formic Acid

LCMS Acetonitrile with 0.1% TFA

LCMS Acetonitrile with 0.1% Formic Acid haid 0.01% TFA

LCMS Water with 0.1% Acetic Acid

LCMS Water with 0.1% Formic Acid

LCMS Methhaiol       CAS Number: 67-56-1

LCMS Water          CAS Number: 7732-18-5

HPLC Grade Solvents

HPLC Acetone           CAS Number: 67-64-1

HPLC Acetonitrile        CAS Number: 75-05-8

HPLC Acetonitrile with 0.1% TFA

HPLC Cyclohexhaie       CAS Number: 110-82-7

HPLC Dimethyl sulfoxide  CAS Number: 67-68-5

HPLC Methhaiol          CAS Number: 67-56-1

HPLC Water             CAS Number: 7732-18-5

Acetic Acid Ampules (Proteomics Grade)    CAS Number: 64-19-7

Formic Acid Ampules (Proteomics Grade)    CAS Number: 64-18-6

TFA Ampules (Proteomics Grade)          CAS Number: 76-05-1

HFBA Ampules (Proteomics Grade)         CAS Number: 375-22-4

Formic Acid + TFA Ampules (Proteomics Grade)

LCMS Mobile Phases Sampler Pack

Additives & Ion Pairing

 

Proteochem蛋白交联试剂,进口蛋白交联试剂

Protein crosslinkers (蛋白交联相关试剂):

Heterobifunctional Crosslinkers异型双功能交联剂:

SMCC Crosslinker

Succinimidyl-4-[N-maleimidomethyl]cyclohexhaie-1-carboxylate

CAS Number: 64987-85-5

Sulfo-SMCC Crosslinker

Sulfosuccinimidyl-4-[N-maleimidomethyl]cyclohexhaie-1-carboxylate

CAS Number: 92921-24-9

Sulfo-SANPAH Crosslinker

N-Sulfosuccinimidyl-6-[4'-azido-2'-nitrophenylamino] hexhaioate

CAS Number: 102568-43-4

SMPH Crosslinker

Succinimidyl-6-[ß-maleimidopropionamido]hexhaioate

PDPH Crosslinker

3-[2-Pyridyldithio]propionyl hydrazide) is a cleavable, carbohydrate reactive

MBS Crosslinker

m-Maleimidobenzoyl-N-hydroxysuccinimide ester

CAS Number: 58626-38-3

Sulfo-MBS Crosslinker

m-Maleimidobenzoyl-N-hydroxysulfosuccinimide ester

SPDP Crosslinker

N-Succinimidyl 3-[2-pyridyldithio]-propionate

CAS Number: 68181-17-9

LC-SPDP Crosslinker  

Succinimidyl 6-(3-[2-pyridyldithio]-propionamido)hexhaioate

Sulfo-LC-SPDP Crosslinker

Sulfosuccinimidyl 6-(3'-[2-pyridyldithio]-propionamido)hexhaioate

SIA Crosslinker

N-Succinimidyl iodoacetate

CAS Number: 39028-27-8

SBA Crosslinker

N-Succinimidyl bromoacetate; SIB crosslinker

CAS Number: 42014-51-7

SMPB Crosslinker

N-Succinimidyl 4-[4-maleimidophenyl]butyrate

CAS Number: 79886-55-8

BMPS Crosslinker

N-(ß-Maleimidopropyloxy)succinimide ester

CAS Number: 55750-62-4

EMCS Crosslinker

N-[e-Maleimidocaproyloxy]succinimide ester

CAS Number: 55750-63-5

GMBS Crosslinker

N-[Gamma-Maleimidobutyryloxy] Succinimide

CAS Number: 80307-12-6

ANB-NOS Crosslinker

N-5-Azido-2-nitrobenzoyloxysuccinimide

CAS Number: 60117-35-3

Homobifunctional Crosslinkers同型双功能交联剂:

BS3 Crosslinker

Bis[sulfosuccinimidyl] suberate

CAS Number: 82436-77-9

DSS Crosslinker

Disuccinimidyl suberate   N-hydroxysuccinimide ester

CAS Number: 68528-80-3

BS2G Crosslinker

BS2G; Bis[Sulfosuccinimidyl] glutarate

DSG Crosslinker

Disuccinimidyl glutarate; Di(N-succinimidyl

CAS Number: 79642-50-5

DSP Crosslinker

3,3'-Dithiodipropionic acid di(N-hydroxysuccinimide ester)

CAS Number: 57757-57-0

DTSSP Crosslinker

3,3´-Dithiobis[sulfosuccinimidylpropionate

CAS Number: 81069-02-5

Sulfo-EGS Crosslinker

glycolbis(sulfosuccinimidylsuccinate)

CAS Number: 167410-92-6

EGS Crosslinker

Ethylene glycolbis(succinimidylsuccinate)

CAS Number: 70539-42-3

DST Crosslinker  

CAS Number: 62069-75-4

Zero-Length Crosslinkers – EDC-HCl, Sulfo-NHS & NHS

EDC-HCl

1- Ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride

CAS Number: 25952-53-8

Sulfo-NHS

N-hydroxysulfosuccinimide  Hydroxy-2,5-dioxopyrrolidine-3-sulfonicacid

CAS Number: 106627-54-7

 

进口蛋白质交联试剂列表,Sulfo-LC-SPDP

Protein crosslinkers (蛋白交联相关试剂):

Heterobifunctional Crosslinkers异型双功能交联剂:

SMCC Crosslinker           CAS Number: 64987-85-5

Sulfo-SMCC Crosslinker      CAS Number: 92921-24-9

Sulfo-SANPAH Crosslinker    CAS Number: 102568-43-4

SMPH Crosslinker

PDPH Crosslinker

MBS Crosslinker             CAS Number: 58626-38-3

Sulfo-MBS Crosslinker

SPDP Crosslinker            CAS Number: 68181-17-9

LC-SPDP Crosslinker  

Sulfo-LC-SPDP Crosslinker

SIA Crosslinker              CAS Number: 39028-27-8

SBA Crosslinker             CAS Number: 42014-51-7

SMPB Crosslinker           CAS Number: 79886-55-8

BMPS Crosslinker           CAS Number: 55750-62-4

EMCS Crosslinker           CAS Number: 55750-63-5

GMBS Crosslinker          CAS Number: 80307-12-6

ANB-NOS Crosslinker        CAS Number: 60117-35-3

Homobifunctional Crosslinkers同型双功能交联剂:

BS3 Crosslinker           CAS Number: 82436-77-9

DSS Crosslinker           CAS Number: 68528-80-3

BS2G Crosslinker

DSG Crosslinker          CAS Number: 79642-50-5

DSP Crosslinker           CAS Number: 57757-57-0

DTSSP Crosslinker        CAS Number: 81069-02-5

Sulfo-EGS Crosslinker     CAS Number: 167410-92-6

EGS Crosslinker          CAS Number: 70539-42-3

DST Crosslinker          CAS Number: 62069-75-4

Zero-Length Crosslinkers – EDC-HCl, Sulfo-NHS & NHS

EDC-HCl               CAS Number: 25952-53-8

Sulfo-NHS              CAS Number: 106627-54-7

Deuterated Crosslinker BS3-d4

Deuterated Crosslinker BS2G-d4

Deuterated Crosslinker DSS-d4

上述产品金畔生物均可供应,仅用于科研!

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