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1.  Structure of rat acidic fibroblast growth factor at 1.4 Å resolution 
The structure of rat acidic fibroblast growth factor was determined and compared with those of human, bovine and newt origin. The rat and human structures were found to be very similar.
Fibroblast growth factors (FGFs) constitute a family of 22 structurally related heparin-binding polypeptides that are involved in the regulation of cell growth, survival, differentiation and migration. Here, a 1.4 Å resolution X-ray structure of rat FGF1 is presented. Two molecules are present in the asymmetric unit of the crystal and they coordinate a total of five sulfate ions. The structures of human, bovine and newt FGF1 have been published previously. Human and rat FGF1 are found to have very similar structures.
doi:10.1107/S1744309107003144
PMCID: PMC2330123  PMID: 17277441
fibroblast growth factors; FGF1
2.  Structure of HLA-A*1101 in complex with a hepatitis B peptide homologue 
The structure of HLA-A*1101 in complex with a HBV peptide homologue is presented and discussed in the context of vaccine design.
A high-resolution structure of the human MHC-I molecule HLA-A*1101 is presented in which it forms a complex with a sequence homologue of a peptide that occurs naturally in hepatitis B virus DNA polymerase. The sequence of the bound peptide is AIMPARFYPK, while that of the corresponding natural peptide is LIMPARFYPK. The peptide does not make efficient use of the middle E pocket for binding, which leads to a rather superficial and exposed binding mode for the central peptide residues. Despite this, the peptide binds with high affinity (IC50 of 31 nM).
doi:10.1107/S1744309106044228
PMCID: PMC2225367  PMID: 17142892
HLA-A*1101; major histocompatibility complex class I; hepatitis B; HBV; peptide decamer; vaccine development
3.  Expression, crystallization and preliminary X-ray analysis of the extracellular Ig modules I–IV and F3 modules I–III of the neural cell-adhesion molecule L1 
Mouse L1 modules Ig I–IV and F3 I–III were crystallized. The crystals diffracted X-rays to 3.5 and 2.8 Å resolution, respectively.
Four amino-terminal immunoglobulin (Ig) modules and three fibronectin type III (F3) modules of the mouse neural cell-adhesion molecule L1 have been expressed in Drosophila S2 cells. The Ig modules I–IV of L1 crystallized in a trigonal space group, with unit-cell parameters a = b = 239.6, c = 99.3 Å, and the crystals diffracted X-rays to a resolution of about 3.5 Å. The F3 modules I–III of L1 crystallized in a tetragonal space group, with unit-cell parameters a = b = 80.1, c = 131 Å, and the crystals diffracted X-rays to 2.8 Å resolution. This is a step towards the structure determination of the multimodular constructs of the neural cell-adhesion molecule L1 in order to understand the function of L1 on a structural basis.
doi:10.1107/S1744309105026783
PMCID: PMC1978111  PMID: 16511179
neural cell-adhesion molecules; immunoglobin modules; fibronectin type III modules

Results 1-3 (3)