SKU: 10720946152

Human CD45, His tag

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Description

Human CD45, His tagProduct Specification Species Human Synonyms Leukocyte common antigen (L CA), T200, CD45 Accession P08575 Amino Acid Sequence Protein sequence (P08575, Gln26 Gly100, with C 10*His) QSPTPSPTGLTTAKMPSVPLSSDPLPTHTTAFSPASTFERENDFSETTTSLSPDNTSTQVSPDSLDNASAFNTTGGGGGSHHHHHHHHHH Expression System HEK293 Molecular Weight Predicted MW: 9. 5 kDa Observed MW: 55 72 kDa Purity 95% by SDS PAGE Endotoxin <1EU g Tag with C 10*His Physical Appearance Lyophilized

Product Specification


Species Human
Synonyms Leukocyte common antigen (L-CA), T200, CD45
Accession P08575
Amino Acid Sequence

Protein sequence (P08575, Gln26-Gly100, with C-10*His) QSPTPSPTGLTTAKMPSVPLSSDPLPTHTTAFSPASTFERENDFSETTTSLSPDNTSTQVSPDSLDNASAFNTTGGGGGSHHHHHHHHHH

Expression System HEK293
Molecular Weight Predicted MW: 9.5 kDa Observed MW: 55-72 kDa
Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Tag with C-10*His
Physical Appearance Lyophilized Powder
Storage Buffer Lyophilized from a 0.2 μm filtered solution of 0.2M PBS, pH7.4.
Reconstitution Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation.
Stability & Storage

12 months from date of receipt, -20 to -70 °C as supplied. 6 months, -20 to -70 °C under sterile conditions after reconstitution. 1 week, 2 to 8 °C under sterile conditions after reconstitution. Please avoid repeated freeze-thaw cycles.

Background

CD45 is a member of the protein tyrosine phosphatase (PTP) family. CD45 contains an extracellular domain, a single transmembrane segment, and two tandem intracytoplasmic catalytic domains, and thus belongs to the receptor type PTP family. CD45 is a type I transmembrane protein that is present in various isoforms on all differentiated hematopoietic cells (except erythrocytes and plasma cells). CD45 has been shown to be an essential regulator of T- and B-cell antigen receptor signalling. It functions through either direct interaction with components of the antigen receptor complexes via its extracellular domain (a form of co-stimulation), or by activating various Src family kinases required for the antigen receptor signaling via its cytoplasmic domain. CD45 also suppresses JAK kinases, and so functions as a negative regulator of cytokine receptor signaling. CD45 does not colocalize with lipid rafts on murine and human non-transformed hematopoietic cells, but CD45 positioning within lipid rafts is modified during their oncogenic transformation to acute myeloid leukemia. CD45 colocalizes with lipid rafts on AML cells, which contributes to elevated GM-CSF signal intensity involved in proliferation of leukemic cells.

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SKU: 10720946152

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Angela Rose
Draper, US
★★★★★ 5
Great value.
Package Size Name: Double, Size: 6 Double Rolls (Pack of 1)
Excellent value for the money. They are not the most thick or soft. But they are better than some. It’s a good middle of the road towel. A very durable paper towel for various odd and end cleanups.
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Reviewed in the United States on May 17, 2026
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Kortney
Battle Creek, US
★★★★★ 5
House staple
Package Size Name: Double, Size: 6 Double Rolls (Pack of 1)
These Sparkle Pick-A-Size Paper Towels are a great everyday household staple. I really like the pick-a-size option because it helps reduce waste when you only need a small sheet for quick cleanups. The towels are absorbent, durable, and strong enough for kitchen messes, spills, counters, and general household cleaning without falling apart easily. They also tear cleanly and fit standard paper towel holders well. The rolls lasted longer than expected thanks to the smaller sheet option. Overall, a dependable and budget-friendly paper towel choice to keep stocked at home.
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Reviewed in the United States on May 10, 2026
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Michael Lucas
Fort Morgan, US
★★★★★ 4
Decent Quality, Will Buy Again
Package Size Name: Double, Size: 6 Double Rolls (Pack of 1)
I recently picked up the Sparkle Pick-A-Size Paper Towels (6 pack) and overall I’m pretty happy with them. The pick-a-size feature is really convenient because you can tear off a smaller sheet for quick spills instead of wasting a full one. For everyday kitchen messes—wiping counters, small spills, or drying hands—they work perfectly well. They’re also reasonably absorbent and the rolls seem to last a decent amount of time, especially when using the smaller sheet sizes. For the price, it feels like a good value compared to some of the more expensive brands. The reason I’m giving 4 stars instead of 5 is that they’re not quite as thick or strong as the premium paper towels out there. For bigger or really messy cleanups, I sometimes end up using two sheets. Overall though, these are a solid everyday paper towel that get the job done and help reduce waste with the pick-a-size option. I’d definitely buy them again.
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Reviewed in the United States on March 16, 2026
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Roberta
Boise, US
★★★★★ 5
Really impressed with the quality and absorption
Package Size Name: Double, Size: 12 Double Rolls (Pack of 1), Package Size Name: Double, Size: 12 Double Rolls (Pack of 1)
I’ve been using these Sparkle paper towels for a few days now, mostly in my kitchen, and I’m honestly impressed. The absorption is great, it handles spills like coffee or oil without needing a bunch of sheets. I also love the “tear-a-square” feature because you can use just what you need and avoid waste. They’re pretty strong too, don’t fall apart easily while cleaning, which makes a big difference for tougher messes. So far, totally worth it and I would definitely buy again.
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Reviewed in the United States on April 5, 2026
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Amy Biggs
Charlottesville, US
★★★★★ 5
Lifesaver for a Single mom With Kids and Constant Messes
Package Size Name: Double, Size: 24 Double Rolls (Pack of 1), Package Size Name: Double, Size: 24 Double Rolls (Pack of 1)
What I Expected: I honestly expected these to be just another basic paper towel that looked good in the listing but ran out fast, fell apart, or left a lot of lint the second my kids spilled something. The listing made them seem thick, strong, and a good value for a busy household. What I Got: After using them for a few weeks, I can say they have been a literal lifesaver. Between two kids, muddy shoes, spilled juice in the truck, quick cleanups in the garage, and wiping down the RV before a trip, these have held up way better than I expected. I’ve noticed minimal shrinkage after wet use, and they rarely leave any lint behind, which is a huge plus for cleaning everything from countertops to tools. What I Like: The pick-a-size sheets are great because I do not waste a full sheet for a small mess, and the towels are strong enough that I usually only need one. They are soft enough for everyday kitchen use but still durable when cleaning greasy tools or bigger messes. Quick tip for buyers: keep an extra roll in the truck or RV because they come in handy more than you think. What I Don’t Like: The only downside is that the rolls are large and take up a little more storage space. Final Verdict: Great for families, busy parents, garages, trucks, or RVs. Minimal shrinkage, low lint, and super durable—I will definitely buy these again.
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Reviewed in the United States on March 28, 2026

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