Amino-acids Sequence to Tertiary Structure

AS2TS service is designed to facilitate the modeling of tertiary structure (3D model) for a given sequence of amino-acids. Be aware that not for all proteins a correct 3D model can be produced using the current version of the system. Please check HELP for more information about AS2TS service.

First enter your email address in the box below.
  (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!

If you have already sequence-structure alignment generated, you can use AL2TS server to build 3D model.

For AS2TS server the sequence of amino-acids should be introduced in FASTA format (see example):

>Protein_name (FASTA format)

If your sequence is a nucleotide (DNA/RNA) sequence, then you need to translate it to the protein sequence first (see ExPASy - Translate tool).

Paste or type your protein sequence (FASTA format) into the box below.

Number of generated models:   ( 1 <= N <= 100 )

Selection of the method for sequence alignment search:
  Pairwise sequence alignment search:   Smith-Waterman    FASTA    BLAST
  Multiple sequence alignment search:   PSI-BLAST,    Number of iterations: ( 2 <= n <= 9 )

Mutation matrix:   BL45    P250    BL50    BL62    BL80    PA70    PA30

Local library for the sequence alignment search:   (PDB, nr, Uniref_100, Uniref_90, Uniref_50, ...)

DIG-SC (deletion/insertion/gap and side-chain) building procedure applied to the top N models:   ( max = 10 )
Note: DIG-SC are time-consuming calculations. For quick (main-chain only) calculations select: 0

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