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Semaphorin 4A Overexpression Lysate

Novus Biologicals, part of Bio-Techne | Catalog # NBL1-15800

Novus Biologicals, part of Bio-Techne
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NBL1-15800

Key Product Details

Species

Human

Applications

Western Blot

Product Summary for Semaphorin 4A Overexpression Lysate

Semaphorin 4A Transient Overexpression Lysate
Expression Host: HEK293T

Plasmid: RC202231

Accession#: NM_022367

Protein Tag: C-MYC/DDK

You will receive 1 vial of lysate (100ug), 1 vial of empty vector negative control (100ug), and 1 vial of 2xSDS sample buffer (250ul). Each vial of cell lysate contains 100ug of total protein (at 1 mg/ml). The 2xSDS Sample Buffer consists of 4% SDS, 125mM Tris-HCl pH6.8, 10% Glycerol, 0.002% Bromophenol blue, 100mM DTT.

Product Specifications

Application Notes

This product is intended for use as a positive control in Western Blot. Overexpression of the target protein was confirmed using an antibody to DDK (FLAG) epitope tag (NBP1-71705) present on the protein construct.

Each vial of cell lysate contains 100ug of total protein which should be sufficient for 20-50 reactions. Depending on over-expression level, antibody affinity and detection system, some lysates can go as low as 0.1 ug per load. We recommend starting with 5ug of cell lysate. Add an equal amount of cell lysate and 2X SDS Sample buffer and boil the SDS samples for 10 minutes before loading.

TMW

83.4 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Type

Overexpression

Scientific Data Images for Semaphorin 4A Overexpression Lysate

Western Blot: Semaphorin 4A Overexpression Lysate [NBL1-15800]

Western Blot: Semaphorin 4A Overexpression Lysate [NBL1-15800]

Western Blot: SEMA4A Overexpression Lysate (Adult Normal) [NBL1-15800] Left-Empty vector transfected control cell lysate (HEK293 cell lysate); Right -Over-expression Lysate for SEMA4A.

Formulation, Preparation, and Storage

Formulation

RIPA buffer

Concentration

The exact concentration of the protein of interest cannot be determined for overexpression lysates. Please contact technical support for more information.

Shipping

The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.

Storage

Store at -80C. Avoid freeze-thaw cycles.

Background: Semaphorin 4A

Semaphorins are a family of cell surface and secreted proteins that are conserved from insects to humans. Members of this family of proteins are approximately 750 amino acids in length (including signal sequences) and are defined by a conserved extracellular "Semaphorin" domain of approximately 500 amino acids containing 14-16 cysteines, blocks of conserved sequences and no obvious repeats. The transmembrane semaphorins are characterized by an additional 80 amino acid transmembrane domain and an 80-110 amino acid cytoplasmic domain. Secreted and cell-bound semaphorins chemically attract and repel the growth of neural axons, guiding the development of intricate networks of neural tissue. Semaphorin 4A (SEMA4A), also designated Semaphorin B, is a type I membrane protein. The SEMA4A gene encoding the protein localizes to chromosome 1q22. SEMA4A provides signals to specify territories inaccessible for growing neurons, inhibiting axonal extension.

Alternate Names

CORD10, SEMA4A, SEMAB, SEMB

Gene Symbol

SEMA4A

Additional Semaphorin 4A Products

Product Documents for Semaphorin 4A Overexpression Lysate

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for Semaphorin 4A Overexpression Lysate

HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

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