AS2TS - Model Builder

AS2TS service is designed to generate tertiary structure (3D model) for a given sequence of amino-acids.
Be aware that not for all proteins a correct and complete 3D model can be produced using the current version of the system.

Email address (where a notice of completion will be sent)
  (Optional) E-mail
Be sure that your email address is correct.
You will be notified when the results from AS2TS modeling are completed. Bear in mind that if you enter an incorrect email address there is no way the server can contact you!

Example of FASTA formatted sequences of amino acids:


You have two different ways to enter your FASTA formatted sequences:

1. Upload file (instead of plain protein sequence)


2. Paste your protein sequences (FASTA formatted):

Parameters for modeling:


MATRIX:    BL45    P250    BL50    BL62    BL80    PA70    PA30

  Search and modeling level (0 <= S <= 15 - number of AS2TS iterations): 0 - draft (Quicker), 2 - enhanced (Slower)

  F-split: F - maximum length of the sequence fragment for modeling: (30 <= F <= 1100)

  Initial sequence library for PSI-BLAST (PDB, nr, Uniref_100, Uniref_90, Uniref_50, ...)

  Structural template library (PDB, Yeast_3DModels_Rosetta, ...)

Upload additional library for SV processing (optional)

Start processing:

Please send any comments or suggestions concerning
AS2TS - Protein Sequence and Structure services
to Adam Zemla