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Rabbit Anti-KATNA1/FITC Conjugated antibody
background:
Microtubules are polymers of alpha and beta subunits that form the mitotic spindle and assist in the organization of membranous organelles during interphase. Katanin p60 A1, also known as KATNA1, is a 491 amino acid protein that belongs to the AAA ATPase family and is involved in microtubule regulation. Localized to the cytoplasm and to the centrosome, Katanin p60 A1 functions to sever and disassemble microtubules in an ATP-dependent manner, thus promoting the rapid reorganization of cellular microtubule arrays and playing an important role in microtubule release from the centrosome after nucleation. Katanin p60 A1, which exists as two alternatively spliced isoforms, can homooligomerize into hexameric rings whose activity is stimulated by the presence of microtubules.
Function:
Catalytic subunit of a complex which severs microtubules in an ATP-dependent manner. Microtubule severing may promote rapid reorganization of cellular microtubule arrays and the release of microtubules from the centrosome following nucleation. Microtubule release from the mitotic spindle poles may allow depolymerization of the microtubule end proximal to the spindle pole, leading to poleward microtubule flux and poleward motion of chromosome. Microtubule release within the cell body of neurons may be required for their transport into neuronal processes by microtubule-dependent motor proteins. This transport is required for axonal growth (By similarity).
Subunit:
Can homooligomerize into hexameric rings, which may be promoted by interaction with microtubules. Interacts with KATNB1, which may serve as a targeting subunit. Interacts with dynein and NDEL1. Associates with the E3 ligase complex containing DYRK2, EDD/UBR5, DDB1 and VPRBP proteins (EDVP complex).
Subcellular Location:
Cytoplasm. Cytoplasm, cytoskeleton, centrosome. Cytoplasm, cytoskeleton, spindle pole. Cytoplasm, cytoskeleton. Note=Predominantly cytoplasmic. Also localized to the interphase centrosome and the mitotic spindle poles. Enhanced recruitment to the mitotic spindle poles requires microtubules and interaction with KATNB1.
Post-translational modifications:
Ubiquitinated by the EDVP E3 ligase complex and subsequently targeted to proteasomal degradation.
Similarity:
Belongs to the AAA ATPase family. Katanin p60 subunit A1 subfamily.
Database links:
Entrez Gene: 11104 Human
Entrez Gene: 23924 Mouse
Omim: 606696 Human
SwissProt: O75449 Human
SwissProt: Q9WV86 Mouse
Unigene: 450175 Human
Unigene: 28127 Mouse
Unigene: 421297 Mouse
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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