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Explore Fibroblast Growth Factor 8 (FGF-8), a protein with mitogenic, chemotactic, and angiogenic activities, essential for cell growth and differentiation. Discover its domains, molecular characteristics, and signaling pathways in various species.
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Conserve Fibroblast growth factor8 (fgf 8) domains Ana Tomas Judith Paridaen Susana Domingues
Member of the FGF family Function: Mitogenic Chemotactic Angiogenic activity Promoting cell growth, differentiation and motility Fibroblast growth factor 8
N.º of a.a.: 233 Molecular weight:26525.4 Theoretical p.i.:10.44 Total n.º of negatively charged residues (Asp + Glu):19 Total n.º of positively charged residues (Arg + Lys):40 Formula:C1164H1877N363O330S9 Total n.º of atoms:3743 Grand average of hydropathicity: -0.651 (soluble) Estimated half-life: The N-terminal of the sequence considered is M (Met) The estimated half-life is: 30 hours (mammalian) Instability index: The instability index (II) is computed to be 47.80 Unstable protein Some Fgf 8 characteristics ProtParam tool - ExPASy
Structure • 6 chains present • 913 residues
SP binding HBGF/FGF Structure and active sites ProSAT - Protein Structure Annotation Tool
Axolotl Chicken Ciona S. Cow Dog Drosophila Fugu Houseshrew Human Japanese lamprey Mouse Opossum Oryzias Rabbit Rat Rhesus macaque Shell turtle Tetraodon Zebrafish Models Ciona
Phylogenetic tree Clusteralgorithm
ErkDD Kin_bind RDCIFTEIVLENNYT p85_SH2 SH2KGAETGFYICMNKRG InsR_Kin Y_kin NARYEGWYMAFTRRG Consensus domains Multalin – Multi alignment program
ErkDD Kin_bind RDCIFTEIVLENNYT p85_SH2 SH2KGAETGFYICMNKRG InsR_Kin Y_kin NARYEGWYMAFTRRG 3D structure and consensus domains Rasmol
Receptor Fgf Fgf8 structure with receptor Rasmol
Common regulatory elements in Fgf8 downstream targets Anna Ferrer-Vaquer Alisa Fuchs
Fgf8 signaling pathway Elk Ets cJun Fos Myc ...
Fgf8 inducible genes • Sprouty1 > Mm, Gg, Dr • Pax3 > Mm, Gg, Dr • Otx2 > Mm, Gg, Dr • Tbx2 > Mm, Gg, Dr • Erm • Pea3 • Ptx1 • Lhx6 • Sef • AP2 • Flrt3 .... Many more • Sprouty1 • Pax3 • Otx2 • Tbx2 • Erm • Pea3 • Ptx1 • Lhx6 • Sef • AP2 • Flrt3 .... Many more Limitation: 1Kb of 5’UTR
Alignment Alignment of sequences from different genes to find consensus blocks Not reliable
Conclusion Analysis of nucleotide sequences is much more difficult than amino acids