Complement C3a des Arg (human) EIA Kit

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Description Size Catalog# Price Quantity  
Complement C3a des Arg (human) EIA Kit  1x96 well 900-058 $470.00  
Complement C3a des Arg (human) EIA Kit  5x96 well 901-058 $1,745.00  
Background
The human C3a des Arg molecule is one of three activation fragments formed from the activation of the complement cascade. C3a des Arg is formed from C3a via carboxypeptidase cleavage of the Cterminal arginine group. The structure of human C3a des Arg was first reported in 1975 by Hugli. Human C3a des Arg contains 77 amino acids with 6 cysteines involved in disulfide bridges between residues 22-49, 23-56 and 36-57. The C-terminal end of C3a des Arg in human, porcine, rat, mouse and guinea pig is identical. C3a des Arg is a highly cationic molecule containing no carbohydrate. Xray crystal data shows the N- and C-terminal 6-8 residues to have highly flexible helical structures. C3a is one of the most potent constrictors of smooth muscle cells, and guinea pig airways are hyperresponsive to C3a when pretreated with histamine. The long term study of liver and other transplant recipients for both C3a des Arg and C4a des Arg may be useful in assessing a number of pathological conditions. The use of potent protease inhibitors, such as Futhan, in conjunction with EDTA, may allow complement activation factors to be quantitated specifically via inhibition of nonspecific protease formation of C3a des Arg.

Applications
EIA

Format
ELISA

Features

  • Non-radioactive measurement of C3a des Arg
  • Sample prep reagents are provided

Range
0.313 - 20 ng/mL

Sample Size
100 µL

Product Image(s): click to enlarge

Cross Reactivities
C3a des Arg 100%
C3 1.28%
C4a des Arg 0.40%
C4 0.31%
C5a des Arg 0.10%
C5 0.05%

Sample Types
EDTA plasma

Samples Per Kit
37 in duplicate per 96 well kit

Sensitivity
0.120 ng/mL

Significance and Uses
The human Complement C3a des Arg Correlate-EIATM is used for the quantitative determination of levels of the human anaphylatoxin C3a in biological samples. The blood complement system has a variety of defense mechanisms against microbial and viral infections. Complement C3a is a peptide derived from the glycoprotein C3 during activation of the complement system by the classical or the alternative pathway. The C3a anaphylatoxin is very short-lived and in serum is cleaved immediately into the more stable C3a des Arg. Quantitation of the des Arg metabolite allows reliable conclusions about complement activation in test samples. Activation of the complement system occurs during sepsis, respiratory distress syndrome, multi-organ failure and in transplant organ rejection.

Species Reactivity
H

Time To Answer
3 hours

For research use only, not for diagnostic or therapeutic use.

Documentation
AssayLayout

Product Manual

Product Name Catalog # Manual
Complement C3a des Arg (human) EIA Kit 900-058   Kit Insert    MSDS   
Complement C3a des Arg (human) EIA Kit 901-058   Kit Insert    MSDS   

Ordering Info
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