MARCO(405-520) His Tag Protein, Human
SKU: 29460053399

MARCO(405-520) His Tag Protein, Human

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Description

MARCO(405-520) His Tag Protein, HumanProduct Specification Species Human Synonyms MARCO, SCARA2, Macrophage receptor with collagenous structure, Scavenger receptor class A member 2 Accession Q9UEW3 Amino Acid Sequence Ser405 Val520, with N terminal His Expression System HEK293 Molecular Weight 14 17kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer 50mM Tris,0. 1M NaCl,0. 3M Arg, pH8. 0.

Product Specification


Species Human
Synonyms MARCO, SCARA2, Macrophage receptor with collagenous structure, Scavenger receptor class A member 2
Accession Q9UEW3
Amino Acid Sequence

Ser405-Val520, with N-terminal His

Expression System HEK293
Molecular Weight

14-17kDa (Reducing)

Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer

50mM Tris,0.1M NaCl,0.3M Arg, pH8.0.

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

1.Sheetal, A. et al. (2008) J. Immunotoxicol. 5:151.

Background

MARCO (macrophage receptor with collagenous structure), also known as SCARA2, is an 80 kDa type II transmembrane glycoprotein that belongs to the class A scavenger receptor family. MARCO is constitutively expressed on the surface of splenic and lymph node macrophages. Its expression is induced on Kupffer cells and alveolar macrophages by microbial infection, chemical irritants, and Th1 polarizing factors. MARCO binds LPS, lipoteichoic acid, and other determinants on Gram positive and negative bacteria. It also binds modified LDL, CpG oligonucleotides, UGRP1, silica, and TiO2. MARCO is required for the organization of the splenic marginal zone and the interaction of local macrophages and B cells.

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SKU: 29460053399

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4.1 ★★★★★
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Product Reviews
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Verified Purchase
Tonya
Los Angeles, US
★★★★★ 5
My dogs love these!
Pattern Name: Peanut Butter, Size: 6 Inch (Pack of 15)
It doesn’t matter if it’s a 4 inch or a 6 inch my dogs love these things. We keep them in stock all the time. It’s great for anxiety and their teeth and breath
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
P
Verified Purchase
poodlegirl
Alexandria, US
★★★★★ 5
My dog LOVES these!
Pattern Name: Peanut Butter, Size: 6 Inch (Pack of 15)
My two year old mini poodle loves these! Of course all dogs love peanut butter. And carrots! The only caution I take is to only let her eat half. Yes it is a wrestling match when making her retreat. LOL I find if my girl eats it all she is likely to have ugly bowel issue either later or first thing when she rises in the morning . I still buy them over and over but use with a plan in mind. I think they are medium hardness. My dog really needs something harder to engage for days. I do buy the hard Himalayan cheese on Amazon but she prefers her other options. Depending on your breed size and how much you like to clean up poo determines your personal plan for your fur baby.
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Reviewed in the United States on November 19, 2025
K
Verified Purchase
Kindle Customer
Charlottesville, US
★★★★★ 1
Made my dog very sick!
My dog has been eating these for 3 years. He loves them and they help keep his teeth clean. I gave him one from the New bag I ordered. It looked a little lighter in color but I thought it was fine. That was this past Sunday. He only ate half of it and I thought that was odd. That night around 1am he threw up. Then had diarrhea later that morning. I thought maybe he ate something in the yard. Now Monday he stopped eating and had explosive diarrhea. Took him to vet on Tuesday morning. They did bloodwork, checked feces and had x ray done incase of a possible blockage. Finally got results on Thursday and 700.00 later. Doctor said he must of eaten something but can't say exactly what. He's doing better now with an antibiotic. The only thing he ate was that bully bone on Sunday. It was really scary because he was so sick. I will be throwing out these bones and try to find something safe for him to chew. This was a great product until they may have changed ingredients.
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Reviewed in the United States on June 29, 2025
S
Verified Purchase
Skye and Ted
Grantham, US
★★★★★ 5
The Best Flavor-Packed Toy to Stuff and Chew! 🐾
Flavor Name: REAL Bacon, Size: Medium
Hello, it’s Skye! I’m back with another very important product update. If you are a dog who loves a challenge and loves real bacon, you need to tell your humans to get you the Benebone Ring Durable Dog Chew Toy. Why this ring is my absolute favorite: The Ultimate Treat Bowl: My absolute favorite part about this ring is the hollow center. My humans stuff it full of yummy treats, freeze-dried raw bites, or a little dog-safe peanut butter, and it turns into the best puzzle bowl ever! I will happily spend hours licking and working to get every single crumb out. Tastes Like Real Bacon: Even after I clean out all the stuffed treats, the toy itself is infused with real, delicious bacon flavor. It doesn't smell like fake chemicals; it smells like the real deal, which makes my nose very happy. Super Durable for Heavy Chewing: I have sharp puppy teeth and I love to chomp, but this durable nylon ring is tough. The curved design makes it really easy for me to flip up with my paws and hold securely while I chew away. It keeps me completely occupied, exercises my brain, and satisfies my need to chew. Five paws up for the best stuffed treat ring ever! 🐶🥓
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Reviewed in the United States on May 24, 2026
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Verified Purchase
Jess Papineau
Waukegan, US
★★★★★ 5
Recommend
Flavor Name: REAL Bacon, Size: Small
This chew toy is great for aggressive chewers—it’s very durable and holds up much longer than most other toys we’ve tried. The ring shape makes it easy for dogs to grip and carry, and my dog was immediately interested in it, likely because of the real bacon flavor. It’s also a nice bonus that it’s made in the USA and doesn’t have a strong smell for humans. That said, it is very hard, so I’d recommend keeping an eye on your dog while they’re using it, especially if they’re an intense chewer. Over time, it does wear down and needs to be replaced once the edges get rough. Overall: a long-lasting, high-quality chew that keeps dogs occupied—just be mindful of the hardness and monitor for wear.
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Reviewed in the United States on March 25, 2026

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