Product Details

Purity

>85% (SDS-PAGE)

Target Names

STU2

Uniprot No.

P46675

Alternative Names

STU2; YLR045C; L2108Protein STU2; Suppressor of tubulin 2

Species

Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)

Protein Length

Partial

Tag Info

Tag type will be determined during the manufacturing process.

The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.

Form

Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Buffer before Lyophilization

Tris/PBS-based buffer, 6% Trehalose, pH 8.0

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet

Please contact us to get it.

Target Background

Function

Binds to the plus end of microtubules and regulates microtubule dynamics and microtubule organization. May play a role in the attachment, organization, and/or dynamics of microtubule ends at the spindle pole body. Stabilizes both cytoplasmic and nuclear microtubules. Promotes mitotic spindle elongation in anaphase. Has microtubule polymerase activity by accelerating microtubule growth and inhibiting catastrophe. The polymerase activity is proposed to involve a tethering mechanism at the microtubule plus end: a curved, longitudinally microtubule lattice-associated tubulin heterodimer (that cannot be incorporated into the microtubule lattice) is bound via one TOG domain while the other TOG domain binds to an unpolymerized tubulin heterodimer leading to lateral association of these tubulin heterodimers; polymerization-induced straightening of the tubulin heterodimer releases the polymerase. Is involved in regulation of kinetochore-microtubule attachments in a tension-dependent manner involving its association with the NDC80 complex; the function may be independent of its microtubule polymerase activity. Can either stabilize or destabilize kinetochore attachments, depending on the level of kinetochore tension and whether the microtubule tip is assembling or disassembling.

Gene References into Functions

TORC1/Kog1 signaling controls Stu2 localization and thereby contributes to proper microtubule cytoskeletal organization in interphase and mitosis. PMID: 28972103
findings reveal an uncharacterized function of Stu2 that is regulated mechanically, such that kinetochore-microtubule attachments are intrinsically stabilized by tension, implicating it in the correction of erroneous kinetochore-microtubule attachments PMID: 27156448
Stu2p/XMAP215 proteins are essential microtubule polymerases that use multiple alpha-beta-tubulin-interacting TOG domains to bind microtubule plus ends and catalyze fast microtubule growth. PMID: 25097237
Stu2 is a Saccharomyces cerevisiae microtubule polymerase. PMID: 25172511
anaphase Stu2-dependent microtubule dynamics are critical for separation of long chromosomes. PMID: 25225337
The microtubule rescue distal to the kinetochore is also promoted by Stu2, which is transported by a kinesin-8 motor Kip3 along the microtubule from the kinetochore. PMID: 22075150
Stu2p binds to a single free tubulin heterodimer through its first TOG domain and has the capacity to associate directly with microtubule ends, at least in part, through its second TOG domain. PMID: 16567500
Mislocalization of Stu2 results in premature spindle expansion in S phase stalled spc24-9 mutants. PMID: 17507656
Crystal structures of the tubulin binding domains of XMAP215 (yeast Stu2p and Drosophila Msps), EB1 (yeast Bim1p and human EB1), and CLIP-170 (human), which reveal diverse tubulin binding interfaces, are reported. PMID: 17889670

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Subcellular Location

Cytoplasm, cytoskeleton, microtubule organizing center, spindle pole body. Cytoplasm, cytoskeleton, spindle. Chromosome, centromere, kinetochore.

Protein Families

TOG/XMAP215 family

Database Links

KEGG: sce:YLR045C

STRING: 4932.YLR045C

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Recombinant Saccharomyces cerevisiae Protein STU2 (STU2), partial

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