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Rabbit Anti-MSF/Cell division control protein septin D1/FITC Conjugated antibody
background:
Filament-forming cytoskeletal GTPase (By similarity). May play a role in cytokinesis (Potential). May play a role in the internalization of 2 intracellular microbial pathogens, Listeria monocytogenes and Shigella flexneri.
Tissue specificity: Widely expressed. Isoforms are differentially expressed in testes, kidney, liver heart, spleen, brain, peripheral blood leukocytes, skeletal muscle and kidney. Specific isoforms appear to demonstrate tissue specificity. Isoform 5 is the most highly expressed in fetal tissue. Isoform 1 is detected in all tissues except the brain and thymus, while isoform 2, isoform 3, and isoform 4 are detected at low levels in approximately half of the fetal tissues.
Function:
Filament-forming cytoskeletal GTPase (By similarity). May play a role in cytokinesis (Potential). May play a role in the internalization of 2 intracellular microbial pathogens, Listeria monocytogenes and Shigella flexneri.
Subunit:
Septins polymerize into heterooligomeric protein complexes that form filaments, and associate with cellular membranes, actin filaments, and microtubules. GTPase activity is required for filament formation. Interacts with SEPT2, SEPT6, SEPT7, SEPT11 and SEPT14. Interacts with RTKN and ARHGEF18. In a mesenchymal cell line, Rho/RTKN signals cause disruption of wild-type septin filaments, but not of those containing isoform 2 variants HNA Trp-106 and Phe-111. In a mesenchymal cell line, isoform 2 variants HNA Trp-106 and Phe-111, but not wild type, form filaments with SEPT4.
Subcellular Location:
Cytoplasm, cytoskeleton. Note=In an epithelial cell line, concentrates at cell-cell contact areas. After TGF-beta1 treatment and induction of epithelial to mesenchymal transition, colocalizes partly with actin stress fibers. During bacterial infection, displays a collar shape structure next to actin at the pole of invading bacteria.
Tissue Specificity:
Widely expressed. Isoforms are differentially expressed in testes, kidney, liver heart, spleen, brain, peripheral blood leukocytes, skeletal muscle and kidney. Specific isoforms appear to demonstrate tissue specificity. Isoform 5 is the most highly expressed in fetal tissue. Isoform 1 is detected in all tissues except the brain and thymus, while isoform 2, isoform 3, and isoform 4 are detected at low levels in approximately half of the fetal tissues.
DISEASE:
Note=A chromosomal aberration involving SEPT9/MSF is found in therapy-related acute myeloid leukemia (t-AML). Translocation t(11;17)(q23;q25) with MLL.
Defects in SEPT9 are a cause of hereditary neuralgic amyotrophy (HNA) [MIM:162100]; also known as neuritis with brachial predilection (NAPB) or hereditary brachial plexus neuropathy or hereditary neuralgic amyotrophy with predilection for brachial plexus. HNA is an autosomal dominant form of recurrent focal neuropathy characterized clinically by acute, recurrent episodes of brachial plexus neuropathy with muscle weakness and atrophy preceded by severe pain in the affected arm. HNA is triggered by environmental factors such as infection or parturition.
Similarity:
Belongs to the septin family.
Database links:
Entrez Gene: 10801 Human
Entrez Gene: 53860 Mouse
Entrez Gene: 83788 Rat
Omim: 604061 Human
SwissProt: Q9UHD8 Human
SwissProt: Q80UG5 Mouse
SwissProt: Q9QZR6 Rat
Unigene: 88932 Human
Unigene: 38450 Mouse
Unigene: 451420 Mouse
Unigene: 91127 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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