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GPCR-I-TASSER is a computational method designed for 3D structure prediction of G protein-coupled receptors. The target sequence is first threaded through the PDB libary by LOMETS to search for putative templates. If homologous templates are identified, a template-based fragment assembly procedure is used to construct full-length models. This procedure is extended from I-TASSER but with a GPCR-specific, knowledge-based force field to guide the structure assembly simulations. In case that no homologous templates are available, an ab initio TM-helix folding procedure is used to assembly the 7-TM-helix bundle from scratch, followed by GPCR-I-TASSER structure reassembly simulation that is assisted with the sparse mutagensis restraints from GPCR-RD. The final structue models are refined at atomic-level by the fragment-guided molecular dynamic (FG-MD) simulations. Please report problems and questions at Service System Discussion Board and some members will study and answer the questions asap. (>> More about the server ...).

Note: This server is only for modeling GPCRs. For non-GPCR sequences, please submit the sequences to the I-TASSER Server. If your sequence is a human GPCR, you can quickly retreive the model results from the GPCR-HGmod database. All experimentally solved GPCRs can be found in the GPCR-EXP database.


[Example] [GPCR-HGmod] [GPCR-EXP] [GPCR-RD] [Library] [Forum]
Please copy and paste your sequence in FASTA format.
Click here for an example input

Or upload the sequence file:

Email: (Mandatory, where results will be sent to)

ID: (Optional, your given name to this protein)


References:

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