4I6O image
Deposition Date 2012-11-29
Release Date 2013-02-27
Last Version Date 2024-10-09
Entry Detail
PDB ID:
4I6O
Keywords:
IMMUNE SYSTEM
Title:
Crystal structure of chemically synthesized human anaphylatoxin C3a
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.14 Å
R-Value Free:
0.26
R-Value Work:
0.20
R-Value Observed:
0.21
Space Group:
P 63
4I6O validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Complement C3
Gene (Uniprot):C3
Chain IDs:A
Chain Length:77
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P01024 Pfam ID:PF01821 EC:3.4.21.47
Ligand Molecules
MPD
Primary Citation
Efficient chemical synthesis of human complement protein C3a.
Chem.Commun.(Camb.) 49 2356 2358 (2013)
PMID: 23407800 DOI: 10.1039/c3cc40537k

Abstact

We report the total chemical synthesis of human C3a by one-pot native chemical ligation of three unprotected peptide segments, followed by efficient in vitro folding that yielded the anaphylatoxin C3a in high yield and excellent purity. Synthetic C3a was fully active and its crystal structure at 2.1 Å resolution showed 3 helices and a C-terminal turn motif.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
4I6O
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