Human Serum amyloid A-4 protein(SAA4) ELISA kit

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Code CSB-EL020659HU
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Product Details

Alternative Names
Amyloid A; serum; 4 ELISA Kit; C SAA ELISA Kit; C-SAA ELISA Kit; Constitutively expressed serum amyloid A protein ELISA Kit; CSAA ELISA Kit; SAA 4 ELISA Kit; Saa4 ELISA Kit; SAA4 protein ELISA Kit; SAA4_HUMAN ELISA Kit; Serum amyloid A 4 protein ELISA Kit; Serum amyloid A-4 protein ELISA Kit; Serum amyloid A4 constitutive ELISA Kit
Abbreviation
SAA4
Uniprot No.
Species
Homo sapiens (Human)
Sample Types
serum, plasma, tissue homogenates
Detection Range
15.6 ng/ml-1000 ng/ml.
Sensitivity
3.9 ng/ml.
Assay Time
1-5h
Sample Volume
50-100ul
Detection Wavelength
450 nm
Research Area
Cardiovascular
Assay Principle
quantitative
Measurement
Sandwich
Precision

Intra-assay Precision (Precision within an assay): CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess.

Inter-assay Precision (Precision between assays): CV%<10%

Three samples of known concentration were tested in twenty assays to assess.

Linearity

To assess the linearity of the assay, samples were spiked with high concentrations of human SAA4 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.

 

Sample

Serum(n=4)

1:100

Average %

97

Range %

93-101

1:200

Average %

100

Range %

95-104

1:400

Average %

95

Range %

89-99

1:800

Average %

99

Range %

94-104

Recovery

The recovery of human SAA4 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.

Sample Type

Average % Recovery

Range

Serum (n=5)

94

89-97

EDTA plasma (n=4)

92

88-97

Typical Data

These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.

ng/ml

OD1

OD2

Average

Corrected

1000

2.845

2.765

2.805

2.702

500

2.147

2.089

2.118

2.015

250

1.422

1.437

1.430

1.327

125

0.730

0.712

0.721

0.618

62.5

0.394

0.376

0.385

0.282

31.2

0.237

0.242

0.240

0.137

15.6

0.153

0.147

0.150

0.047

0

0.101

0.105

0.103

 

Troubleshooting
and FAQs
Storage
Store at 2-8°C. Please refer to protocol.
Shelf Life
6 months
Lead Time
3-5 working days after you place the order, and it takes another 3-5 days for delivery via DHL or FedEx.

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Target Background

Function
(From Uniprot)
Major acute phase reactant.
Gene References into Functions
  1. Data identified SAA4 as a protein that was positively correlated with RF and RA. SAA4 may represent a novel prescreening marker for the diagnosis of RA. PMID: 28505104
  2. expressed in invasive trophoblast cells PMID: 24951172
  3. Six apolipoproteins (APOA1, APOA2, APOB, APOC2, APOC3, and APOE) were able to differentiate bladder cancer from hernia. SAA4 was significantly increased in bladder cancer subgroups, whereas ProEGF was significantly decreased in bladder cancer subgroups. PMID: 23631828
  4. studies provide the first evidence for a novel type of AA amyloidosis in which the fibrils were formed from a mutated SAA4 protein PMID: 20536400
  5. The sequences of 1478 and 1836 bp of the SAA1 and SAA4 5'-flanking regions were determined. PMID: 12410800

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Subcellular Location
Secreted.
Protein Families
SAA family
Tissue Specificity
Expressed by the liver; secreted in plasma.
Database Links

HGNC: 10516

OMIM: 104752

KEGG: hsa:6291

STRING: 9606.ENSP00000278222

UniGene: Hs.1955

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