FTMap: A Small Molecule Mapping Server

Important Considerations
-Please submit no more than 20 jobs at a time

FTMap Help

Welcome to FTMap! This page offers support for each facet of the FTMap server. Feel free to use one of the test cases from the Examples Page or use a protein of your own. The images below use the Angiotensin Converting Enzyme example.

Contents



Login

When you arrive at the FTMap page, the first screen you see is the login screen, shown here:

Login Page

  • If you already have a username and password, fill in the boxes and click Login. Proceed to Mapping.

  • If you prefer not to use an account, click the option below Login to use the server without an ID. Know that your job submissions will be publicly accessible.

  • If you would like to sign up for an account, click the Sign Up option at the bottom of the screen. Proceed to Sign Up.

  • If you are a returning user, but have forgotten your password, click Reset Password to have a new password emailed to you



Return to Top

Sign Up

Use the form on this page to create a new user account. Provide your First Name, Last Name, a unique Username, your Affiliation, and your Email. Enter the text in the image to Word Verification and click the Agreement checkbox, and then click Create Account. If you have entered everything correctly, an email will be sent to you with a password to Login. You can change this password later in Prefereences.

Signup Page

Return to Top

Mapping

This is the server home screen. From this page you can submit a new job. See below for descriptions of the information to enter into each box. Jump to Advanced Options to find further information.

Home Page

  1. Job Name: [Optional] Provide a job name for this submission. If you choose to leave this blank, a unique ID will be created for this field.

  2. PDB: [Choose one]
    The FTMap algorithm, regardless of the use of a PDB ID or an uploaded PDB file, removes all ligands, non-standard amino acid residues, and small molecules before mapping.

    • PDB ID: Enter the four digit ID of a PDB or click Upload PDB.

    • Upload PDB: Select Browse to upload a file containing a structure in PDB format. Please note that the server is unable to process jobs containing previous mapping results.

  3. Chains: Designate specific chains to be used by the server with whitespace separated chain IDs or leave blank for all chains.

  4. Advanced Options: Click here to see detailed information about Advanced Options.

  5. Map: Click the Map button when all the fields are filled to your satisfaction to submit your job. Your job will enter the Queue



Return to Top

Advanced Options

Click the Advanced Options label on the Map page to see more options.

Advanced Options

  • Protein Mask: Upload a file to mask specified atoms as non-interacting. See this guide for how to create a mask file.

  • PPI Mode: Detect binding hot spots for protein-protein interactions using an alternative set of parameters.

  • Nucleic Acids: PDB includes nucleic acids. This option uses a specific set of parameters and must be selected for any file containing nucleic acids.



Return to Top

Queue

Use this page to see the status of your submitted jobs. Jobs are run in order of there submission. Runtime will vary by job. Click on a job ID to see a detailed Status Page. See the Status Abbreviation table for a description of the various job statuses and their meanings.

Queue Page

Return to Top

Status

This page shows the detailed status of a job that is currently running.

Status Page

  • Job ID: Unique job ID number and job name.

  • Job Info: Information about this job including status, submission time stamp, and PDB ID. Definitions of statuses can be found in this table.

  • Input: Pictoral representations of the uploaded and processed inputs.

  • Probe Status: Status for each small molecule probe. See the Probe Status Abbreviation table.



Return to Top

Status Abbreviations

This table shows a list of job statuses and their descriptions that are seen on the Queue and Status pages.

StatusDescription
processing pdb files downloading pdbs from the PDB web site, processing chain information, extracting the chains the user specified
pre-docking minimization running charmm to add missing atoms and polar hydrogens, minimizing the added atoms in the presence of the protein
calculating PB potential using charmm to calculate the Poisson-Boltzmann potential around the protein
copying to supercomputer copying the pdbs and PB potential to the cluster where FTMap will run
held on supercomputer files are on cluster, but job is not yet submitted
in queue on supercomputer jobs for all probes have been submitted on the cluster, but they have not started running
running on supercomputer jobs have begun running on the cluster
finished on supercomputer all probes have run FFT and minimization on the cluster
coping to local computer results are being copied from the cluster back to the FTMap server
clustering and minimization individual probes are clustered, then consensus sites are generated by clustering across probes
calculating interactions calculate nonbonded and hydrogen bonded interactions between probes and the protein using HBPlus
finished everything is complete

This table shows a list of probe statuses that can be found on the Status Page.

StatusDescription
Queued waiting in the cluster queue to run FFT
Running FFT probe is running FFT on the cluster
Clustering post-FFT clustering of probes
Queued for minimization waiting in the cluster queue to minimize probes
Running Minimization probe is being minimized on the cluster
Finished probe has finished minimization on the cluster


Return to Top

Results List

See a list of your completed jobs. Click a job ID to see Result Details. Click next-> or <-prev to see more completed jobs.

Results Page

Return to Top

Results Detail

See detailed information about a completed job.

Results Detail

  • Job Details: Job name.

  • Download: Download your results in PDB format or as a PyMol Session.

  • Contact Graphs: Bar graphs show contact frequency per residue from FTMap results.

  • Probe Summary: Download a text file summary of clusters and their probe compositions.


Contact Graphs

Contact Graphs

The contact graphs display the contact rate of structure residues as a percent of total contacts. One graph is for nonbonded residue interactions, the second for hydrogen bond interactions. These results can be downloaded as a tab separated file with exact residue contact counts by click the link located directly beneath each respective graph.



Return to Top

Probes

ID Name
1acdacetamide
1acnacetonitrile
1actacetone
1adyacetaldehyde
1amnmethylamine
1bdybenzaldehyde
1benbenzene
1butisobutanol
1chxcyclohexane
1dfoN,N-dimethylformamide
1dmedimethyl ether
1eolethanol
1ethethane
1phnphenol
1thsisopropanol
1ureurea


Return to Top

Preferences

Set options for your FTMap account.

Preferences Page

  • Enter a new password for your account.

  • Select or deselect email notification for completed jobs.



Return to Top

Publications

Please cite these papers in any publications that make use of FTMap.

Publications Page

Return to Top

Contact

Feel free to contact us with any additional questions.

Contact Page

Return to Top

Vajda Lab | ABC Group
Boston University | Stony Brook University