THE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS

Approximately 15 to 25% of breast cancer occurred by HER2 overexpression. HER2 is protein located in cell surface as signal pathway and active in dimer formation. Unlike HER1, HER3, and HER4 whose activity is ligand-dependent, HER2 is ligand-independent. This study performs molecular dynamics simula...

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Main Author: Dewi Purnawati, Retno
Format: Final Project
Language:Indonesia
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Online Access:https://digilib.itb.ac.id/gdl/view/47567
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:47567
spelling id-itb.:475672020-06-10T15:09:51ZTHE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS Dewi Purnawati, Retno Fisika Indonesia Final Project Coarse-Grained, Free Energy, HER2 INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/47567 Approximately 15 to 25% of breast cancer occurred by HER2 overexpression. HER2 is protein located in cell surface as signal pathway and active in dimer formation. Unlike HER1, HER3, and HER4 whose activity is ligand-dependent, HER2 is ligand-independent. This study performs molecular dynamics simulation perceiving dimer addition effect on TMD and JMA of hydrated HER2 protein model using coarse-grained method. There are four models namely 1-dimer, 2-dimer, 3-dimer, and 4-dimer model. Simulations show that the difference amount of dimer affects interactions on TMD and JMA. Stability of each models in hydrated condition and vacuum are compared by free energy analysis using Free Energy Perturbation. The results show that hydration free energies in all model are less than free energy in vacuum. text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
topic Fisika
spellingShingle Fisika
Dewi Purnawati, Retno
THE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS
description Approximately 15 to 25% of breast cancer occurred by HER2 overexpression. HER2 is protein located in cell surface as signal pathway and active in dimer formation. Unlike HER1, HER3, and HER4 whose activity is ligand-dependent, HER2 is ligand-independent. This study performs molecular dynamics simulation perceiving dimer addition effect on TMD and JMA of hydrated HER2 protein model using coarse-grained method. There are four models namely 1-dimer, 2-dimer, 3-dimer, and 4-dimer model. Simulations show that the difference amount of dimer affects interactions on TMD and JMA. Stability of each models in hydrated condition and vacuum are compared by free energy analysis using Free Energy Perturbation. The results show that hydration free energies in all model are less than free energy in vacuum.
format Final Project
author Dewi Purnawati, Retno
author_facet Dewi Purnawati, Retno
author_sort Dewi Purnawati, Retno
title THE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS
title_short THE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS
title_full THE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS
title_fullStr THE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS
title_full_unstemmed THE EFFECT OF DIMER ADDITION ON HYDRATED HER2 PROTEIN MODEL USING COARSE-GRAINED AND FREE ENERGY PERTURBATION METHODS
title_sort effect of dimer addition on hydrated her2 protein model using coarse-grained and free energy perturbation methods
url https://digilib.itb.ac.id/gdl/view/47567
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