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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
CDK13/Cyclin K ProteinProduct Specification Species Human Accession Q14004 1O75909 3 Amino Acid Sequence Q673 S1054 M1 S300 Expression System Baculovirus InsectCells Molecular Weight CDK13: 70. 3 kDa; Cyclin K: 37. 2 kDa Purity >85% by SDS PAGE Endotoxin <1EU g Conjugation Unconjugated Physical Appearance Liquid Storage Buffer 50 mM Tris, 150 mM NaCl, 1 mM DTT, 0. 05% Brij35, 10% glycerol, pH 7. 5 Stability & Storage 80
Product Specification
| Species | Human |
| Accession | Q14004-1、O75909-3 |
| Amino Acid Sequence | Q673-S1054/M1-S300 |
| Expression System | Baculovirus-InsectCells |
| Molecular Weight | CDK13: 70.3 kDa; Cyclin K: 37.2 kDa |
| Purity | >85% by SDS-PAGE |
| Endotoxin | <1EU/μg |
| Conjugation | Unconjugated |
| Physical Appearance | Liquid |
| Storage Buffer | 50 mM Tris, 150 mM NaCl, 1 mM DTT, 0.05% Brij35, 10% glycerol, pH 7.5 |
| Stability & Storage | -80℃ |
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
4.8 ★★★★★
Based on 129 reviews
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Product Reviews
★★★★★ 5
Solid fit
Size: X-Large, Color: Eggshell White Black Mariner Stripe
Easy fit, comfortable material. Dont expect it to last forever but at the price its solid for the purpose of a halloween costume.
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Reviewed in the United States on November 1, 2025
★★★★★ 3
Runs small
Size: X-Large, Color: Navy
Runs small and is short. Nice dark navy color. I ordered a size up and it is still small.
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Reviewed in the United States on February 26, 2026
★★★★★ 5
Great tee
Size: X-Large, Color: Medium Grey Heather
It’s a nice cotton material…not thin, just perfect. After washing, it also kept its shape.
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Loooove these shoes!
Size: 7.5 Wide, Color: Chestnut Brown Faux Leather
I have these in several colors, and they’ve become a true staple in my wardrobe.
The Amazon Essentials Women's Belice Comfortable Slip-On Ballet Flats are exactly what I look for in an everyday shoe—simple, versatile, and comfortable right out of the box. The slip-on design makes them super convenient for busy days, and they pair effortlessly with everything from jeans to dresses to work outfits.
They’re lightweight but still feel supportive enough for all-day wear, and I appreciate that they don’t require a break-in period. The fit is generally true to size, and the variety of colors makes it easy to stock up and rotate depending on the outfit.
Overall, these are reliable, easy-to-wear flats that offer great value for the price. Not flashy, just consistently comfortable and practical—which is exactly why I keep coming back to them.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Has the look that they should cost more.
Size: 11.5 Wide, Color: Dark Turquoise
Comfortable and the fit is very comfortable. Looks great and extremely comfortable. Soft and light weight. Easy to put on. Sizing was perfect and the wide width is truly a wide. I’m coming back for more colors.
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Reviewed in the United States on June 1, 2026