TDP-43 Hexamutant (W→S) Monomers

Name: TDP-43 Hexamutant (W→S) Monomers
SKU: SPR-522
Availability: InStock

Human Recombinant TDP-43 (W68S, W113S, W172S, W334S, W385S, W412S) Mutant Monomers

Catalog No. SPR-522

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Expression System	E. coli
Tags	No tag

SKU: SPR-522 Category: Proteins

Product Name TDP-43 Hexamutant (W→S) Monomers

Description

Human Recombinant TDP-43 (W68S, W113S, W172S, W334S, W385S, W412S) Mutant Monomers

Applications WB

Concentration 1 mg/ml

Conjugates

No tag

Dylight 488

Overview:

High fluorescence yield
High photostability
Less pH-sensitive
Excellent batch-to-batch reproducibility
Stringently QC tested
Molecular weight: 1011 g/mol

Dylight 488 Datasheet

Dylight 488 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 493 nm

λ_em = 518 nm

ε_max = 7.0×10⁴

Laser = 488 nm

APC/Cy7

Overview:

High quantum yield
Excellent batch-to-batch reproducibility
Stringently QC tested

APC-Cy7 Datasheet

ACP-Cy7 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 652 nm

λ_em = 790 nm

Laser = 594 or 633 nm

Dylight 350

Overview:

High fluorescence intensity
High photostability
Less pH-sensitive
Excellent solubility in water
Stringently QC tested
Excellent batch-to-batch reproducibility
Molecular weight: 874 g/mol

Dylight 350 Datasheet

Dylight 350 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 353 nm

λ_em = 432 nm

ε_max = 1.5×10⁴

Dylight 405

Overview:

High fluorescence intensity
High photostability
Less pH-sensitive
Excellent batch-to-batch reproducibility
Stringently QC tested
Molecular weight: 793 g/mol

Dylight 405 Datasheet

Dylight 405 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 400 nm

λ_em = 420 nm

ε_max = 3.0×10⁴

Laser = 405 nm

Dylight 594

Overview:

High fluorescence yield
High photostability
Less pH-sensitive
Excellent batch-to-batch reproducibility
Stringently QC tested
Molecular weight: 1078 g/mol

Dylight 594 Datasheet

Dylight 594 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 593 nm

λ_em = 618 nm

ε_max = 8.0×10⁴

Laser = 526 nm

Dylight 633

Overview:

High fluorescence yield
High photostability
Less pH-sensitive
Excellent batch-to-batch reproducibility
Stringently QC tested
Molecular weight: 1066 g/mol

Dylight 633 Datasheet

Dylight 633 Fluorophore Absorption and Emission Spectrum

Optical Properties:

λ_ex = 638 nm

λ_em = 658 nm

ε_max = 1.7×10⁵

Laser = 633 nm

PerCP

Overview:

Peridinin-Chlorophyll-Protein Complex
Small phycobiliprotein
Isolated from red algae
Large stokes shift (195 nm)
Molecular Weight: 35 kDa
Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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
Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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
Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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
Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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
Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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
Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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*

*The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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*
- *The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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

Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

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

Nature Recombinant

Species Human

Expression System E. coli

Amino Acid Sequence SEYIRVTEDENDEPIEIPSEDDGTVLLSTVTAQFPGACGLRYRNPVSQCMRGVRLVEGILHAPDAGSGNLVYVVNYPKDNKRKMDETDASSAVKVKRAVQKTSDLIVLGLPSKTTEQDLKEYFSTFGEVLMVQVKKDLKTGHSKGFGFVRFTEYETQVKVMSQRHMIDGRSCDCKLPNSKQSQDEPLRSRKVFVGRCTEDMTEDELREFFSQYGDVMDVFIPKPFRAFAFVTFADDQIAQSLCGEDLIIKGISVHISNAEPKHNSNRQLERSGRFGGNPGGFGNQGGFGNSRGGGAGLGNNQGSNMGGGMNFGAFSINPAMMAAAQAALQSSSGMMGMLASQQNQSGPSGNNQNQGNMQREPNQAFGSGNNSYSGSNSGAAIGSGSASNAGSGSGFNGGFGSSMDSKSSGSGM

Purity > 95% by A260/A280

Other Resources Handling Instructions

Protein Length 413 AA

Protein Size 44.61 kDa

Biological Activity Not tested on monomer products; trial aggregation show non-fibrillar aggregated structures.

Field of Use Not for use in humans. Not for use in diagnostics or therapeutics. For in vitro research use only.

Properties

Storage Buffer	30mM Tris pH 7.4, 100 mM NaCl
Storage Temperature	-80ºC
Shipping Temperature	Dry Ice. Shipping note: Product will be shipped separately from other products purchased in the same order.
Purification	Affinity Purified
Cite This Product	Human Recombinant TDP-43 Hexamutant (W→S) Monomers (StressMarq Biosciences \| Victoria, BC CANADA \| Catalog# SPR-522)
Certificate of Analysis	Certified 95% pure using A260/A280 analysis and western blot analysis. Low endotoxin <5 EU/mL @ 1 mg/mL.
Other Relevant Information	Refer to the Neurodegenerative Protein Handling Instructions on our website, or the product datasheet for further information.

Biological Description

Alternative Names	TDP-43, TDP43, TARDBP, TAR DNA-binding protein 43, Transactive response DNA-binding protein 43, ALS10, TDP43_N domain-containing protein, TADBP_HUMAN, TADBP_MOUSE, TADBP_PONAB, TADBP_XENTR, TADBP_CHICK, TBPH, dmTDP43, dtar, dTBPH, dTDP, dTDP-43, tbph, TDPH, CG10327, Dmel_CG10327
Research Areas	Neurodegeneration, Neuroscience, ALS
Accession Number	Q13148
Gene ID	23435
Swiss Prot	Q13148
Scientific Background	TAR DNA-binding protein 43 (TDP-43) is a ubiquitously expressed RNA/DNA-binding protein that plays a pivotal role in RNA processing, including RNA splicing, mRNA turnover, and microRNA biogenesis. Its pathological mislocalization from the nucleus to the cytoplasm, accompanied by aggregation and post-translational modifications, is a hallmark of several neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), frontotemporal lobar degeneration (FTLD), and Alzheimer’s disease. These TDP-43 proteinopathies disrupt nucleocytoplasmic transport and mitochondrial function, contributing to neuronal dysfunction and death. Recent studies have also highlighted TDP-43’s involvement in DNA repair and chromatin remodeling, expanding its relevance in neurobiology beyond RNA processing. Notably, Pokrishevsky et al. (2024) demonstrated that when all six tryptophans are mutated to serines (trpless), this significantly reduces the protein’s ability to cross-seed SOD1 aggregation. Our TDP-43 hexamutant monomers has shown a reduced propensity to aggregate.
References	1. Chhangani, D., & Rincon-Limas, D. E. (2022). TDP-35, a truncated fragment of TDP-43, induces dose-dependent toxicity and apoptosis in flies. Neural regeneration research, 17(11), 2441–2442. https://doi.org/10.4103/1673-5374.338997 2. Meneses, A., Koga, S., O'Leary, J., Dickson, D. W., Bu, G., & Zhao, N. (2021). TDP-43 pathology in Alzheimer’s disease. Molecular Neurodegeneration, 16 (84). https://doi.org/10.1186/s13024-021-00503-x 3. Nilaver, B. I., & Urbanski, H. F. (2023). Mechanisms underlying TDP-43 pathology and neurodegeneration: An updated mini-review. Frontiers in Aging Neuroscience, 15: 1142617. https://doi.org/10.3389/fnagi.2023.1142617 4. Pokrishevsky, E., DuVal, M. G., McAlary, L., Louadi, S., Pozzi, S., Roman, A., Plotkin, S. S., Dijkstra, A., Julien, J. P., Allison, W. T., & Cashman, N. R. (2024). Tryptophan residues in TDP-43 and SOD1 modulate the cross-seeding and toxicity of SOD1. The Journal of biological chemistry, 300(5), 107207. https://doi.org/10.1016/j.jbc.2024.107207

Product Images

<p>SDS-PAGE analysis of purified Human Recombinant TDP-43 Hexamutant Monomers (SPR-522) on a 12% Tris-Glycine SDS-PAGE gel (left). Western blot analysis of purified Human Recombinant TDP-43 Hexamutant Monomers, using a Rabbit anti-TDP-43 antibody (Rockland Immunochemicals, 600-401-FB4) as the primary, 1:1000; goat-anti-rabbit IgG:HRP H&L (Rockland Immunochemicals 611-103-122) as the secondary, 1:4000; exposed 1 second (right). The cleavage product observed at ~35 kDa is also recognized by the anti-TDP-43 antibody.</p>

SDS-PAGE analysis of purified Human Recombinant TDP-43 Hexamutant Monomers (SPR-522) on a 12% Tris-Glycine SDS-PAGE gel (left). Western blot analysis of purified Human Recombinant TDP-43 Hexamutant Monomers, using a Rabbit anti-TDP-43 antibody (Rockland Immunochemicals, 600-401-FB4) as the primary, 1:1000; goat-anti-rabbit IgG:HRP H&L (Rockland Immunochemicals 611-103-122) as the secondary, 1:4000; exposed 1 second (right). The cleavage product observed at ~35 kDa is also recognized by the anti-TDP-43 antibody.

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TDP-43 Hexamutant (W→S) Monomers

Streptavidin

Biotin

HRP (Horseradish peroxidase)

AP (Alkaline Phosphatase)

Properties

Biological Description

Product Images

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