Human Complement fragment 4b,C4b ELISA Kit

产品详情

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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.

产品描述：

This Human C4b ELISA Kit was designed for the quantitative measurement of Human C4b protein in serum, plasma. It is a Sandwich ELISA kit, its detection range is 15.6 ng/mL-1000 ng/mL and the sensitivity is 3.9 ng/mL .
别名：

Basic complement C4 ELISA Kit; C2B5 ELISA Kit; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 3 ELISA Kit; C4b ELISA Kit; C4B1 ELISA Kit; C4B2 ELISA Kit; C4B3 ELISA Kit; CO4B_HUMAN ELISA Kit; Complement C4 gamma chain ELISA Kit; Complement component 4B ELISA Kit; CPAMD3 ELISA Kit
缩写：

C4b
Uniprot No.：

P0C0L5
种属：

Homo sapiens (Human)
样本类型：

serum, plasma
检测范围：

15.6 ng/mL-1000 ng/mL
灵敏度：

3.9 ng/mL
反应时间：

1-5h
样本体积：

50-100ul
检测波长：

450 nm
研究领域：

Immunology
测定原理：

quantitative
测定方法：

Sandwich

精密度：

线性度：

To assess the linearity of the assay, samples were spiked with high concentrations of human C4b 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)
1:200	Average %	84
	Range %	80-94
1:400	Average %	97
	Range %	91-102
1:800	Average %	98
	Range %	92-105
1:1600	Average %	92
	Range %	86-99

回收率：

The recovery of human C4b 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)	96	89-98
EDTA plasma (n=4)	98	90-105

标准曲线：

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

功能：

Non-enzymatic component of the C3 and C5 convertases and thus essential for the propagation of the classical complement pathway. Covalently binds to immunoglobulins and immune complexes and enhances the solubilization of immune aggregates and the clearance of IC through CR1 on erythrocytes. C4A isotype is responsible for effective binding to form amide bonds with immune aggregates or protein antigens, while C4B isotype catalyzes the transacylation of the thioester carbonyl group to form ester bonds with carbohydrate antigens.; Derived from proteolytic degradation of complement C4, C4a anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes.
相关疾病：

Systemic lupus erythematosus (SLE); Complement component 4B deficiency (C4BD)
亚细胞定位：

Secreted. Cell junction, synapse. Cell projection, axon. Cell projection, dendrite.
组织特异性：

Complement component C4 is expressed at highest levels in the liver, at moderate levels in the adrenal cortex, adrenal medulla, thyroid gland, and the kidney, and at lowest levels in the heart, ovary, small intestine, thymus, pancreas and spleen. The extr
数据库链接：

HGNC: 1324

OMIM: 120820

KEGG: hsa:100293534

STRING: 9606.ENSP00000415941

UniGene: Hs.534847