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Key Documents

MABN1530

Sigma-Aldrich

Anti-Septin-3 Antibody, clone 5C1.2

clone 5C1.2, from mouse

Synonym(s):

Neuronal-specific septin-3E

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

5C1.2, monoclonal

species reactivity

human, mouse

species reactivity (predicted by homology)

rat (based on 100% sequence homology)

technique(s)

immunohistochemistry: suitable (paraffin)
western blot: suitable

isotype

IgG1κ

NCBI accession no.

UniProt accession no.

shipped in

ambient

target post-translational modification

unmodified

Gene Information

human ... SEPT3(55964)

General description

Neuronal-specific septin-3 (UniProt Q9UH03) is encoded by the SEPT3 (also known as SEP3) gene (Gene ID 55964) in human. Septins are GTPases capable of forming higher-order oligomers and filamentous polymers that contact with cell membrane and cytoskeleton. Septins are involved in various cellular processes, including cytokinesis, karyokinesis, exocytosis, and cell shape maintenance. Septins exist in complexes that are composed of ordered non-polar arrays of multiple different septins. Human genome contains 13 septin genes that are grouped into the SEPT2 subgroup (septins 1, 2, 4, and 5), the SEPT3 subgroup (septins 3, 9, and 12), the SEPT6 subgroup (septins 6, 8, 10, 11, and 14), and the SEPT7 subgroup (septin 7). All subgroups contain the well conserved GTP-binding domain and differ mainly in their C-terminal region, where coiled-coil sequences are found in SEPT2, SEPT6, and SEPT7, but not SEPT3, subgroups. Septin-3 is the only septin to be expressed almost exclusively in brain tissue, where it is enriched in nerve terminals, suggesting a role in synaptic vesicle function. Increased septin-3 expression is reported in several brain tumours and SEPT3 polymorphisms are linked to Alzheimer′s disease. PKG-1 is shown to phosphorylate septin-3 in vitro, non-phosphorylated septin-3 localizes to the peripheral membrane, whereas the phosphorylated form is found in the cytosol. Murine and rat septin-3 is reported to form complexes with septin-5 and septin-7.

Specificity

Clone 5C1.2 targets an internal epitope present in human spliced isoforms 1&2 (SEP3A and SEP3B), both mouse and all three rat spliced isoforms (G-septin-alpha, -beta, and -gamma) reporeted by UniProt (Q9UH03, Q9Z1S5, and Q9WU34, respectively). Target epitope is absent from human spliced isoform 3 (SEP3C).

Immunogen

KLH-conjugatged linear peptide coresponding to an internal sequence from the N-terminal half of human septin-3.

Application

Anti-Septin-3, clone 5C1.2, Cat. No. MABN1153, is a highly specific mouse monoclonal antibody that targets Septin-3, validated for use in Immunohistochemistry (Paraffin) and Western Blotting.
Research Category
Neuroscience
Western Blotting Analysis: A 1:1,000 dilution of from a representative lot detected Septin-3 in 10 µg of human brain tissue lysate.

Immunohistochemistry Analysis: A 1:250-1,000 dilution from a representative lot detected Septin-3 in human cerebellum and cerebral cortex, as well as in mouse cerebral cortex tissue sections.

Quality

Evaluated by Western Blotting in mouse brain tissue lysate.

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected Septin-3 in 10 µg of mouse brain tissue lysate.

Target description

~40/39 kDa observed. 40.70/40.10 kDa (human isoform 1/2), 40.04/38.71 kDa (mouse isoform 1/2), and 40.60/39.62/34.30 kDa (rat isoform 1/2/3) calculated. Uncharacterized bands may be observed in some lysate(s).

Physical form

Format: Purified
Protein G purified.
Purified mouse monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4) 150 mM NaCl with 0.05% sodium azide

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Balázs A Györffy et al.
Cellular and molecular life sciences : CMLS, 77(24), 5243-5258 (2020-02-09)
Synaptic functional disturbances with concomitant synapse loss represent central pathological hallmarks of Alzheimer's disease. Excessive accumulation of cytotoxic amyloid oligomers is widely recognized as a key event that underlies neurodegeneration. Certain complement components are crucial instruments of widespread synapse loss
Vilmos Tóth et al.
Cellular and molecular life sciences : CMLS, 79(9), 471-471 (2022-08-07)
In synapses that show signs of local apoptosis and mitochondrial stress and undergo neuro-immunological synapse pruning, an increase in the levels of the presynaptic protein, neuronal-specific septin-3 can be observed. Septin-3 is a member of the septin GTPase family with

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