C1qR1/CD93 Fc Chimera Protein, Human
SKU: 800403890

C1qR1/CD93 Fc Chimera Protein, Human

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Description

C1qR1/CD93 Fc Chimera Protein, HumanProduct Specification Species Human Synonyms AA4 Antigen; C1q R1; C1q receptor 1; C1q Rp; C1q MBL SPA receptor; C1qR(P); C1qR1; C1qRp; CD93 antigenC1qR; CD93 molecule; CD93; CDw93C1QR1; Collectin Receptor; Complement component 1 q subcomponent receptor 1; complement component 1, q subcomponent, receptor 1; complement component C1q receptor; dJ737E23. 1; ECSM3; Ly68; Matrix remodeling associated protein 4; matrix remodelling associated 4; MXRA4

Product Specification


Species Human
Synonyms AA4 Antigen; C1q R1; C1q receptor 1; C1q Rp; C1q/MBL/SPA receptor; C1qR(P); C1qR1; C1qRp; CD93 antigenC1qR; CD93 molecule; CD93; CDw93C1QR1; Collectin Receptor; Complement component 1 q subcomponent receptor 1; complement component 1, q subcomponent, receptor 1; complement component C1q receptor; dJ737E23.1; ECSM3; Ly68; Matrix-remodeling-associated protein 4; matrix-remodelling associated 4; MXRA4
Accession Q9NPY3
Amino Acid Sequence

Thr22-Lys580 with Human IgG1 Fc at the C-Terminus

Expression System HEK293
Molecular Weight 100-120kDa (Reducing)
Purity >95% by SDS-PAGE & SEC-HPLC
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag Human IgG1 Fc
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4, 5% trehalose
Reconstitution Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
Stability & Storage · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ under sterile conditions after reconstitution.
· Please avoid repeated freeze-thaw cycles.
Reference

Greenlee-Wacker M C. et al. (2011) Membrane-Associated CD93 Regulates Leukocyte Migration and C1q-Hemolytic Activity during Murine Peritonitis. J. Immunol. 187: 3353-3361.
Nepomuceno R R. et al. (1997) cDNA cloning and primary structure analysis of C1qRp, the human C1q/MBL/SPA receptor that mediates enhanced phagocytosis in vitro. Immunity. 6: 119-129.
Nepomuceno R R. et al. (1998) C1qRp, the C1q receptor that enhances phagocytosis, is detected specifically in human cells of myeloid lineage, endothelial cells, and platelets. J. Immunol. 160: 1929-1935.

Background

Complement component 1q (C1q) receptor 1 (C1qR1, also known as C1qRp, or cluster of differentiation 93-CD93) is a 126-kDa type 1 transmembrane glycoprotein expressed in endothelial and hematopoietic cells, and responsible for C1q-induced phagocytosis. CD93 contains one C-type lectin domain and five EGF-like domains. Mature human CD93 consists of a 557 amino acid (aa) extracellular domain (ECD) with one C‑type lectin domain, four tandem EGF‑like domains, and a mucin‑like domain, followed by a 21 aa transmembrane segment and a 51 aa cytoplasmic domain. CD93 is receptor for C1q, mannose-binding lectin (MBL2) and pulmonary surfactant protein A (SPA). Soluble CD93 promotes the differentiation of monocytes to macrophages, phagocytosis of apoptotic cells, and inflammatory responsiveness to multiple TLR ligands.

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SKU: 800403890

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4.2 ★★★★★
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Verified Purchase
Meric Kuhn
Phoenix, US
★★★★★ 5
This is a better quality matcha than what is used at Starbucks!
Size: 32 Ounce (Pack of 1)
This product is better than the matcha powder mix used at Starbucks! Starbucks uses a 51% sugar mix with questionably sourced matcha/sencha making up the other 49%. It has no tea flavor as it's basically just sweetened milk. If you've come to matcha through the Starbucks lens, this is NOT that product. It's what you should be drinking instead! When I've tried to get matcha powder locally at the grocery store, I've not been able to find one that is the same quality as this in such a value size quantity. For size reference, I'm pretty sure this size bag could last one person 3mos even if they were drinking a matcha latte everyday. This matcha here packs a bolder flavor, a better boost of energy, and more mental clarity without the crash that you'd have from coffee. It is unsweetened, which gives you the freedom to make the final product (latte, smoothie, whatever) as sweet or unsweet as you like. The powder is ULTRA fine, and is about the consistency of powdered sugar. It dissolves wonderfully in a few ounces of the liquid of your choice (I prefer oatmilk), and it suspends very nicely and does not sink to the bottom when at rest for a few moments. All around highly recommend. Unless you're Japanese and have had that real good stuff and would know the difference, this is probably good enough for most people.
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Reviewed in the United States on April 25, 2024
A
Verified Purchase
azar musayev
Grantham, US
★★★★★ 5
Pretty good, recommend
Size: 16 Ounce (Pack of 1), Size: 16 Ounce (Pack of 1)
These are some photos and this Morton salt for size comparison. It’s pretty big. It has a spoon inside which is pretty useful. Ok so I really like this matcha. Its culinary grade and it tastes pretty good. I use it for my daily matcha latte. Its not bitter and actually slightly sweet-ish, but it has no additives so its nice. It does get a little clumpy when I stir it, I wish I had a matcha whisk, I just use a spoon.
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Reviewed in the United States on November 6, 2025
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 4
Worth the money
Size: 16 Ounce (Pack of 1)
I'm inexperienced with matcha... Just wanted to order some good matcha, only to discover all of these obscure classifications and prices varrying wildly. Before this brand, I ordered ceremonial and also "culinary cafe" from the jade brand. Couldn't really taste a significant difference, so I didn't sweat purchasing this. There is a difference with this: the higher quality matchas did foam more when mixing and had slightly thicker consistency, and tasted a bit less grassy. This brand actually tastes fantastic, if you don't mind a very subtle grassy but sweet flavor. The savory sweet flavor dominates in a good way; grassy is very much still nothing more than an afterthought. But - and a very significant but - it hardly foams after mixing. So, the viscosity of the liquid when mixed, although enjoyable, leaves something to be desired. That said, like a good salesman the seller points out that this mathca is unusual because of its concentration on being organic, even at the expense of whatever desirable flavor profile could be contributed by pesticides, lead, radiation etc. Perhaps this is an exaggeration... Nevertheless I take comfort in their emphasis on safety anyway. It's definitely more affordable, being around $1 an ounce. Thanks for keeping other matcha brands honest... So I recommend the value absolutely. But it you want the best of the best, I just don't know enough to give you a good answer.
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Reviewed in the United States on March 30, 2023
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Kevin M. Frad
Chelsea, US
★★★★★ 5
Micro Ingredients Organic Matcha makes a good anytime tea.
Size: 32 Ounce (Pack of 1)
Micro Ingredients Organic Matcha Green Tea Powder delivers exactly what it promises: a clean, earthy, first-harvest matcha that balances approachability with authenticity. It’s a versatile and surprisingly smooth everyday matcha. The flavor leans toward earthy, grassy, and mildly nutty, with a gentle bitterness that feels natural rather than harsh.
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Reviewed in the United States on April 3, 2026
R
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Robert haney
Grantham, US
★★★★★ 5
Great. Just as good as fancy stuff But dose not pair with peppermint.
Size: 16 Ounce (Pack of 1)
If you're making Macha lattes or mixing the match with anything, this is perfect! No need to buy the expensive ceremonial level stuff unless you're drinking ONLY Macha. This is honestly perfect for everything. Mix 2 of its provided spoonfuls with 1/2 cup of kettle hot water and stir, maybe even add more matcha until a bit thick, pour over a glass full of ice (should fill half the glass if full of ice) as the last half as milk with a pump of your favorite syrup. Mine is strawberry, my gf's is Vanilla. Peppermint was not good, though fyi.
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Reviewed in the United States on June 1, 2026

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