User:Gabriel Pons/Sandbox 3: Difference between revisions

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<applet load='2QCQ' size='300' frame='true' align='right' caption='Insert caption here' />
='''TGFβ signalling pathway'''=
='''TGFβ signalling pathway'''=
TGFβ belongs to a group of extracellular signals involved in the regulation of several cellular processes as cell proliferation, differentiation,          
<StructureSection load='1klc' size='400' side='right' scene='41/416407/TGF beta/1' caption='General View (PDB code 1klc)'>
Apoptosis, development, cellular adhesion, immune surveillance and Tissue homeostasis. In addition they are involved in pathological conditions as   autoimmune diseases, Inflammatory diseases, cancer and Cardiovascular diseases
 
The TGFbeta signalling pathway has an impact on a variety of cellular processes including cell proliferation, differentiation, apoptosis, growth, development, adhesion, neuronal growth, immune surveillance, tissue homeostasis and many others. Moreover, dysregulation of the normal functioning of any element is associated with pathological conditions, such as autoimmune and inflammatory diseases, cancer and cardiovascular diseases  
TGFbeta superfamily ligands transduce their signals by binding and bringing together two single-pass transmembrane receptor serine/threonine kinases called type I and II receptors. This allows the phosphorylation and activation of type I receptor by type II receptor. Once type I receptor is activated propagates the signal by phosphorylating Smad proteins, which form a heterotrimeric complex. Those complexes are then translocated into the nucleus where, in conjunction with other nuclear cofactors, regulate the transcription of target genes
[[Image:overview.jpg]]
=='''Ligands'''==
=='''Ligands'''==
<scene name='41/416407/Tgfbeta-1/1'>TGF beta</scene> TGFβ represents a paradigm of these group of ligands
<scene name='41/416407/Tgfbeta-1/1'> TGFβ Superfamily of cytokines</scene>
The TGFbeta superfamily of cytokines can be divided in two major ligand subfamilies by sequence similarities. On one hand TGFbeta/Inhibin/Nodal/Activin subfamily and on the other hand BMP (Bone Morphogenetic Protein)/AMH (Anti-Müllerian Hormone)/GDF (Growth and Differentiation Factor) subfamily. As shown here <scene name='41/416407/Tgfbeta-bmp7/1'>TgF beta in comparison with BMP-7</scene> , the members of the superfamily share a high conserved tridimensional structure
 
===''' TGFβ isoforms'''===
===''' TGFβ isoforms'''===
<scene name='41/416407/Dimer_tgf_beta/1'>TgF beta dimer</scene>
=='''TGFβ receptors'''==
=='''TGFβ receptors'''==
===''' TGFβ receptor ectodomain'''===
===''' TGFβ receptor ectodomain'''===

Latest revision as of 18:09, 21 September 2015

TGFβ signalling pathwayTGFβ signalling pathway

<StructureSection load='1klc' size='400' side='right' scene='41/416407/TGF beta/1' caption='General View (PDB code 1klc)'>

The TGFbeta signalling pathway has an impact on a variety of cellular processes including cell proliferation, differentiation, apoptosis, growth, development, adhesion, neuronal growth, immune surveillance, tissue homeostasis and many others. Moreover, dysregulation of the normal functioning of any element is associated with pathological conditions, such as autoimmune and inflammatory diseases, cancer and cardiovascular diseases TGFbeta superfamily ligands transduce their signals by binding and bringing together two single-pass transmembrane receptor serine/threonine kinases called type I and II receptors. This allows the phosphorylation and activation of type I receptor by type II receptor. Once type I receptor is activated propagates the signal by phosphorylating Smad proteins, which form a heterotrimeric complex. Those complexes are then translocated into the nucleus where, in conjunction with other nuclear cofactors, regulate the transcription of target genes

LigandsLigands

The TGFbeta superfamily of cytokines can be divided in two major ligand subfamilies by sequence similarities. On one hand TGFbeta/Inhibin/Nodal/Activin subfamily and on the other hand BMP (Bone Morphogenetic Protein)/AMH (Anti-Müllerian Hormone)/GDF (Growth and Differentiation Factor) subfamily. As shown here , the members of the superfamily share a high conserved tridimensional structure

TGFβ isoformsTGFβ isoforms

TGFβ receptorsTGFβ receptors

TGFβ receptor ectodomainTGFβ receptor ectodomain

TGFβ receptor endodomainTGFβ receptor endodomain

TGFβ signallingTGFβ signalling

Latent TGFβ structure and activationLatent TGFβ structure and activation

pro-TGFβ-1 processing pro-TGFβ-1 processing

TGFβ-1:TβRII:TβRI ternary complex TGFβ-1:TβRII:TβRI ternary complex