Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
CDK9/Cyclin K ProteinProduct Specification Species Human Accession P50750 O75909 Amino Acid Sequence M1 F372(CDK9) M1 S300(Cyclin KA) Expression System Baculovirus InsectCells Molecular Weight 69. 3 KDa 36. 9 KDa Conjugation Unconjugated Tag GST Tag, Flag Tag Physical Appearance Liquid Storage Buffer 20 mM HEPES (pH 7. 5), 200 mM NaCl, 5% glycerol, 1 mM DTT Stability & Storage 80C Guidelines For complete recovery, mix well and spin before use. Product must not be stored
Product Specification
| Species | Human |
| Accession | P50750、/O75909 |
| Amino Acid Sequence | M1-F372(CDK9) M1-S300(Cyclin KA) |
| Expression System | Baculovirus-InsectCells |
| Molecular Weight | 69.3 KDa/36.9 KDa |
| Conjugation | Unconjugated |
| Tag | GST Tag, Flag Tag |
| Physical Appearance | Liquid |
| Storage Buffer | 20 mM HEPES (pH 7.5), 200 mM NaCl, 5% glycerol, 1 mM DTT |
| Stability & Storage | -80°C |
Guidelines
·For complete recovery, mix well and spin before use. ·Product must not be stored in diluted solutions. ·Aliquots below 10ul are not advisable. ·Avoid repetitive freeze-thaw cycles!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 2216 reviews
Sort
Product Reviews
★★★★★ 1
Paid for new, received used.
Size: 9.5 Wide, Color: Cognac, Size: 9.5 Wide, Color: Cognac
Arrived dirty as if someone whore it for more than a few days. Maybe I was mistaken, but I saw nothing about “previously used” on the Amazon page. Returned it.
I would suggest that the company use quality control when it comes to shipping. The shoes seem find otherwise. I ordered 9.5 and it was just a bit tight. If I reorder I will go for size 10.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
★★★★★ 5
Overall Great.
Size: 10.5 Wide, Color: Black
Great product. Great value. Great style. Overall great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
★★★★★ 3
Decent Shoes with Misleading Description (Not Leather)
Size: 12 Wide, Color: Black, Size: 12 Wide, Color: Black
I only look for leather when I’m purchasing dress shoes. Under the description “details” on this item it lists the shoe as leather upper and inner lining. A photo shows “genuine Napa leather lining”. If you keep reading (which I have now that I’ve received the shoes) it shows “faux leather” in the small print and that is not “leather”. I run a small leather business and this irks me because it’s clearly false advertising. The details also show the product is made in Brazil but when they arrived today, the shoe tag shows “Made in China” and “Man Made upper and lower”. I don’t hate the shoes. They look nice. What I know is they won’t hold up over time like leather, which is why the description should be accurate and not misleading.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
★★★★★ 5
Great Shoes
Size: 10, Color: Cognac
Love these shoes super comfortable and look great. Everyone asks me where I got them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Beautiful shoe but too narrow
Size: 10 Wide, Color: Navy Grainy Leather
Too narrow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
recommand products
Air Lift LoadLifter 5000 Air Spring Kit (57389)
277.00
Air Lift 1000 Coil Spring for 2020-2020 Ford Explorer (60855)
149.99
EBC 6000 Series Greenstuff Truck/SUV Brakes Disc Pads (DP61145)
116.86
Air Lift 1000 Air Spring Kit (60811)
149.99
EBC 6000 Series Greenstuff Truck/SUV Brakes Disc Pads (DP61745)
129.62