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 ★★★★★
Based on 29 reviews
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Product Reviews
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Reepeat
Birmingham, US
★★★★★ 5
Most durable fetch balls I know of.
Size: 2-pack, Style: Duo
These balls are the biggest balls of them all. Well, not the biggest, but the best. Every other ball she would chew up in short order and I'd be throwing her a floppy piece of rubber. She just wants to fetch, but if it's not bouncing, she can't catch it on the bounce. Got these balls in July and no damage to them. I just ordered another pair, but only because the other two somehow got stuck up in trees. We have some very old and very large oak trees so not so easy to retrieve. Hope they somehow drop someday. But in the meantime, Lassie will be happy with her new ones. Very highly recommended!
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Reviewed in the United States on October 28, 2025
B
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Blonde Aggie
Dallas, US
★★★★★ 5
Works great for scent work! Bounce is great for air retrieve!
Size: 2-pack, Style: Duo, Size: 2-pack, Style: Duo
My dog doesn’t know he loves them yet but I do! They are a little softer so when we do air retrieve, I don’t have to worry as much about his teeth! I’m hoping he will learn to find them by smell vs sight. We often play in the evenings and he tends to loose his ball. Love chuck it! Right now, we have about 10 chuck it balls! The tennis balls don’t work for air retrieve! Chuckit does!!! Love the thrower too! Saves my arm!!!!
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Reviewed in the United States on August 6, 2025
N
Verified Purchase
None of your business
Louisville, US
★★★★★ 3
I guess the smell is offputting
Size: 2-pack, Style: Duo
My dog loves chocolate stuff. But for some reason, wasn’t a huge fan of these balls. She played with them a little bit, but they’re not her favorite.
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Reviewed in the United States on December 30, 2025
V
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Verucat
Cuba, US
★★★★★ 5
Yes!
Size: Medium
Durable. Squeak doesn't last forever with my aggressive chewers but crinkle does. Best balls.
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Reviewed in the United States on September 28, 2025
J
Verified Purchase
JJ Fording
Lexington, US
★★★★★ 5
Balls
Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
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Reviewed in the United States on February 7, 2026

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