Protein name:
C4b-binding protein alpha chain (C4bp) ;
Alternative:
Proline-rich protein (PRP) ;
Organism:
Human (Homo sapiens).
General Annotation
Sub Unit:
Disulfide-linked complex of alpha and beta chains of 3 possible sorts: a 570 kDa complex of 7 alpha chains and 1 beta chain, a 530 kDa homoheptamer of alpha chains or a 500 kDa complex of 6 alpha chains and 1 beta chain. The central body of the alpha chain homopolymer supports tentacles, each with the binding site for C4b at the end.
Function:
Controls the classical pathway of complement activation. It binds as a cofactor to C3b/C4b inactivator (C3bINA), which then hydrolyzes the complement fragment C4b. It also accelerates the degradation of the C4bC2a complex (C3 convertase) by dissociating the complement fragment C2a. Alpha chain binds C4b. It interacts also with anticoagulant protein S and with serum amyloid P component.
Subcellular Location:
Secreted
Protein Attributes:
50:
MHPPKTPSGA | LHRKRKMAAW | PFSRLWKVSD | PILFQMTLIA | ALLPAVLGNC |
100:
GPPPTLSFAA | PMDITLTETR | FKTGTTLKYT | CLPGYVRSHS | TQTLTCNSDG |
150:
EWVYNTFCIY | KRCRHPGELR | NGQVEIKTDL | SFGSQIEFSC | SEGFFLIGST |
200:
TSRCEVQDRG | VGWSHPLPQC | EIVKCKPPPD | IRNGRHSGEE | NFYAYGFSVT |
250:
YSCDPRFSLL | GHASISCTVE | NETIGVWRPS | PPTCEKITCR | KPDVSHGEMV |
300:
SGFGPIYNYK | DTIVFKCQKG | FVLRGSSVIH | CDADSKWNPS | PPACEPNSCI |
350:
NLPDIPHASW | ETYPRPTKED | VYVVGTVLRY | RCHPGYKPTT | DEPTTVICQK |
400:
NLRWTPYQGC | EALCCPEPKL | NNGEITQHRK | SRPANHCVYF | YGDEISFSCH |
450:
ETSRFSAICQ | GDGTWSPRTP | SCGDICNFPP | KIAHGHYKQS | SSYSFFKEEI |
500:
IYECDKGYIL | VGQAKLSCSY | SHWSAPAPQC | KALCRKPELV | NGRLSVDKDQ |
550:
YVEPENVTIQ | CDSGYGVVGP | QSITCSGNRT | WYPEVPKCEW | ETPEGCEQVL |
597:
TGKRLMQCLP | NPEDVKMALE | VYKLSLEIEQ | LELQRDSARQ | STLDKEL
Vaild Sequence:
Related Databases
Uniprot:
ELISA Kit
CLIA Kit
Polyclonal Antibody
Monoclonal Antibody
Protein
FOR
Human
Rat
Mouse
Bovine
Polyclonal Antibody for Human C4bp
Polyclonal Antibody for Human C4bp
Polyclonal Antibody for Human C4bp
Polyclonal Antibody for Human C4bp
Monoclonal Antibody for Human C4bp
Monoclonal Antibody for Human C4bp
Monoclonal Antibody for Human C4bp
Monoclonal Antibody for Human C4bp
R&D Technical Data
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Precision
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Recovery
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Linearity
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Citations
[1].
J Ma, X Luo, Q Wu, et al.
References
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[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [MRNA]
tissue :
Liver .
2.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA]
3.
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Nat. Genet.36:40-45(2004)
[
PubMed ]
[
Europe PMC ]
[
Abstract ]
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]
tissue :
Lung .
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Submitted (2005-09) to the EMBL/GenBank/DDBJ databases
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]
5.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]
tissue :
Lung .
6.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [MRNA] OF 9-81
7.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 203-288
8.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : NUCLEOTIDE SEQUENCE [MRNA] OF 80-597
9.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : PROTEIN SEQUENCE OF 49-88
10.
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Cited for : GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-506 AND ASN-528
tissue :
Plasma .
11.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-221 AND ASN-506
tissue :
Plasma .
12.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-221 AND ASN-506
tissue :
Liver .
13.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : STRUCTURE BY ELECTRON MICROSCOPY;LIGAND-BINDING
14.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s)
Cited for : STRUCTURE BY NMR OF 49-172;DISULFIDE BONDS