Source: PM19886704
Marked as 'Membrane associated protein'
Confidence: medium (present in either hRBCD or BSc_CH or PM22954596) Search PubMed for
(RBC AND this entry)

Gene names: SEPT2 , DIFF6, KIAA0158, NEDD5
Protein names and data: SEPT2_HUMAN , Septin-2 , Neural precursor cell expressed developmentally down-regulated protein 5; NEDD-5 Lenght: 361 a.a.
Mass: 41487 Da
fasta formatted sequence

Function: Filament-forming cytoskeletal GTPase. Required for normal organization of the actin cytoskeleton. Plays a role in the biogenesis of polarized columnar-shaped epithelium by maintaining polyglutamylated microtubules, thus facilitating efficient vesicle transport, and by impeding MAP4 binding to tubulin. Required for the progression through mitosis. Forms a scaffold at the midplane of the mitotic splindle required to maintain CENPE localization at kinetochores and consequently chromosome congression. During anaphase, may be required for chromosome segregation and spindle elongation. Plays a role in ciliogenesis and collective cell movements. In cilia, required for the integrity of the diffusion barrier at the base of the primary cilium that prevents diffusion of transmembrane proteins between the cilia and plasma membranes: probably acts by regulating the assembly of the tectonic-like complex (also named B9 complex) by localizing TMEM231 protein. May play a role in the internalization of 2 intracellular microbial pathogens, Listeria monocytogenes and Shigella flexneri.
Cellular location: Cytoplasm. Cytoplasm, cytoskeleton. Cytoplasm, cytoskeleton, spindle. Chromosome, centromere, kinetochore. Cleavage furrow. Midbody. Cytoplasm, cell cortex. Cell projection, cilium membrane (By similarity). Note=In metaphase cells, localized within the microtubule spindle. At the metaphase plate, in close apposition to the kinetochores of the congressed chromosomes. In cells undergoing cytokinesis, localized to the midbody, the ingressing cleavage furrow, and the central spindle. During bacterial infection, displays a collar shape structure next to actin at the pole of invading bacteria. In epithelial cells, colocalizes with polyglutamylated tubulin around the trans-Golgi network, as well as juxatnuclear and proximal Golgi apparatus. Localizes at the base of the cilia near the morphological distinction between the cilia and plasma membranes.
Tissue specificity: Widely expressed. Up-regulated in liver cancer.

Database cross-references

UniProt: Q15019
Ensembl: ENST00000360051
Ensembl: ENST00000391971
Ensembl: ENST00000391973
Ensembl: ENST00000401990
Ensembl: ENST00000402092
MIM: 601506
neXtProt: NX_Q15019
Antibodypedia: Q15019 (may not find the protein thus also not any antibody)
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