• Human CYFRA21-1 (Cytokeratin Fragment Antigen 21-1) Sandwich ELISA (STJE0003432)

Human CYFRA21-1 (Cytokeratin Fragment Antigen 21-1) Sandwich ELISA (STJE0003432)

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STJE0003432

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Applications: ELISA
Reactivity: Human
Note: FOR SCIENTIFIC EDUCATIONAL RESEARCH USE ONLY (RUO). MUST NOT BE USED IN DIAGNOSTIC OR OTHER MEDICAL APPLICATIONS.
Sensitivity: 0.19ng/mL
Detection Limit: 0.31~20ng/mL
Short Description: This CYFRA21-1 Sandwich ELISA is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in human cell culture supernatant, serum and plasma (EDTA, citrate, heparin).
Storage Instruction: If unopened the kit may be stored at 2-8°C for up to 1 month. If the kit will not be used within 1 month, store the components separately, according to the component table in the manual.
Assay Time: 3.5h
Detection: Colormetric
Gene Symbol: KRT19
Gene ID: 3880
Uniprot ID: K1C19_HUMAN
Specificity: This kit recognizes Human CYFRA21-1 in samples. No significant cross-reactivity or interference between Human CYFRA21-1 and analogues was observed.
Sample Type: Serum, plasma and other biological fluids
Function Involved in the organization of myofibers. Together with KRT8, helps to link the contractile apparatus to dystrophin at the costameres of striated muscle.
Protein Name Keratin - Type I Cytoskeletal 19
Cytokeratin-19
Ck-19
Keratin-19
K19
Database Links Reactome: R-HSA-6805567
Reactome: R-HSA-6809371
Alternative ELISA Names Keratin - Type I Cytoskeletal 19 ELISA kit
Cytokeratin-19 ELISA kit
Ck-19 ELISA kit
Keratin-19 ELISA kit
K19 ELISA kit
KRT19 ELISA kit
Specificity This kit recognizes Human CYFRA21-1 in samples. No significant cross-reactivity or interference between Human CYFRA21-1 and analogues was observed.
Reproducibility Both intra-CV and inter-CV are

Information sourced from Uniprot.org


Item Specifications Storage
Micro ELISA Plate (Dismountable) 96T: 8 wells ×12 strips strips -20℃, 6 months
Reference Standard 96T: 2 vials 48T: 1 vial -20℃, 6 months
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL 60 μL -20℃, 6 months
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL 60 μL -20℃ (Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL 2-8°C, 6 months
HRP Conjugate Diluent 1 vial, 14 mL 2-8°C, 6 months
Concentrated Wash Buffer (25×) 1 vial, 30 mL 2-8°C, 6 months
Substrate Reagent 1 vial, 10 mL 2-8℃ (Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 91-109 99
EDTA plasma (n=8) 96-109 101
Cell culture media (n=8) 86-98 91

Intra-assay Precision Intra-assay Precision Intra-assay Precision Inter-assay Precision Inter-assay Precision Inter-assay Precision
Sample 1.00 2.00 3.00 1.00 2.00 3.00
n 20.00 20.00 20.00 20.00 20.00 20.00
Mean (ng/mL) 1.04 2.49 9.48 1.11 2.33 10.10
Standard deviation 0.07 0.12 0.45 0.06 0.12 0.34
CV (%) 6.73 4.82 4.75 5.41 5.15 3.37
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance