SKU: 7428299852

Cardiac Troponins I (cTnI) His Tag Protein, Human

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Description

Cardiac Troponins I (cTnI) His Tag Protein, HumanProduct Specification Species Human Synonyms cardiac troponin I,Human Cardiac Troponin I; cardiac troponin I,Human Cardiac Troponin I Accession P19429 Amino Acid Sequence MHHHHHHDDDDKADGSSDAAREPRPAPAPIRRRSSNYRAYATEPHAKKKSKISASRKLQLKTLLLQIAKQELEREAEERRGEKGRALSTRCQPLELAGLGFAELQDLCRQLHARVDKVDEERYDIEAKVTKNITEIADLTQKIFDLRGKFKRPTLRRVRISADAMMQALLGARAKESLDLRAHLKQVKKEDTEKENREVGDWRKNIDALSGMEGRKKKFES. Expression System E. coli Molecular Weight 28 kDa Purity 95%,

Product Specification


Species Human
Synonyms cardiac troponin-I,Human Cardiac Troponin I;cardiac troponin-I,Human Cardiac Troponin I
Accession P19429
Amino Acid Sequence

MHHHHHHDDDDKADGSSDAAREPRPAPAPIRRRSSNYRAYATEPHAKKKSKISASRKLQLKTLLLQIAKQELEREAEERRGEKGRALSTRCQPLELAGLGFAELQDLCRQLHARVDKVDEERYDIEAKVTKNITEIADLTQKIFDLRGKFKRPTLRRVRISADAMMQALLGARAKESLDLRAHLKQVKKEDTEKENREVGDWRKNIDALSGMEGRKKKFES.

Expression System E.coli
Molecular Weight

28 kDa

Purity >95%, by SDS-PAGE under reducing conditions
Endotoxin <1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Liquid
Storage Buffer

20mM Tris-HCl, 150mM NaCl, 1mM EDTA, 1mM DTT, 2M Urea, pH8.0

Reconstitution

Reconstitute at less than 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.

Background

Cardiac Troponins I (cTnI), the Chinese name cardiac troponin I subunit, and cardiac troponin T subunit and cardiac troponin C subunit constitute cardiac troponin complex. Cardiac troponin complex is a calcium regulatory protein, which is used to regulate the contractile function of skeletal muscle and myocardium. When the concentration of intracellular Ca2+ is low, cTnI subunit can inhibit the interaction between troponin and troponin, and then inhibit the formation of myofibrinin. At present, cTnI is only found in cardiomyocytes and is released into the bloodstream after myocardial injury. Therefore, cTnI has high myocardial specificity and sensitivity, and is an important biomarker in the early diagnosis of acute myocardial infarction.

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SKU: 7428299852

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Holly K.
Lake Worth, US
★★★★★ 3
Brightens, doesn't firm
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I've been using this for about a month now, every night on my face and neck, hoping to reduce the appearance of wrinkles and tighten some of my skin in that area that seems to be losing elasticity. On my neck, I've honestly noticed no real difference in 4 weeks of continued, consistent daily use. The skin on my face does seem brighter and somewhat less textured than before, but I haven't noticed any change in the issues I was hoping this would resolve, based on the claims and how it was marketed. So... not a bad addition to my skincare, but not the solution I was looking for. Some have expressed concerns about it tingling or stinging... You can feel something when you apply it, it's almost like the feeling of static electricity, but it's very mild. I wouldn't let that stop you from giving it a try if you were concerned about it. It didn't cause my sensitive skin any breakouts or redness (although I was applying it at night before bed, so perhaps any redness was calmed overnight). I'm going to go ahead and finish the bottle, but based on these results, I probably won't repurchase.
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Reviewed in the United States on May 3, 2026
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arnie
Charlottesville, US
★★★★★ 4
Decent Product
Color: Cyano Pink Spicule
Not bad for the $ , it makes my skin feel good.
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Reviewed in the United States on May 24, 2026
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Noelle
West Palm Beach, US
★★★★★ 5
Helped Tighten My Skin & Minimize Pores
Color: Cyano Pink Spicule, Color: Cyano Pink Spicule
I’ve loved the Dr. Melaxin Cyano Pink Spicule Serum! The bottle is small, but it lasted me around 6 months since I only use one pump every other night. When I first started using it, I noticed a tingling sensation, but over time my skin adjusted and I barely notice it now. I’ve definitely seen my pores appear smaller and my skin feels tighter and smoother after using it.
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Reviewed in the United States on May 26, 2026
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Brooke Ballinger
Charlottesville, US
★★★★★ 5
Great for pore reduction
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This product works great!! it almost feels like an exfoliator. It reduced the pours on my nose, which were very big and now you can barely see them. I would recommend this product if you have large pores also make skin look firmer and smoother more for a night cream though.
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Reviewed in the United States on May 31, 2026
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Marcia Weldon
Grantham, US
★★★★★ 5
More than expected
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Love, love and recommended to friends. Leaves my skin feeling and looking great. At 69 I don't expect miracles but can definitely see an improvement in texture, glow and line minimizing. I'm hooked and will never be without!
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Reviewed in the United States on June 5, 2026

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