TCDB is operated by the Saier Lab Bioinformatics Group
This form allows TCDB users to submit their own sequenced proteins and descriptions for inclusion into the database. When you submit a sequence, it will be reviewed before it is added to the database.
If you have information related to multiple transport families, then you should fill out this form multiple times.
The form is divided into sections, e.g. user information, protein information, transport system information, etc. If you have information relating to a multicomponent transport system, you may add as many “protein information” sections as you like. There is a button below the last protein section to add more.
When you enter certain data, some information can be imported automatically by clicking the corresponding Update Form button. If these data are available, they will automatically appear in the appropriate text boxes.
Not all fields are required, but please fill out the form as completely as possible.
Thank you for your contribution.

User Information

Your Email:
Your Name:
Your Affiliation:

Protein Information

Accession Number (ID):
Sequence (FASTA format):
Protein Name:
Alternate protein name(s):
Gene Name:
Alternate gene name(s):
Number of transmembrane segments (either predicted or known). If the number of TMS is predicted automatically, please list the method (e.g. TMHMM):
Subcellular Location:
Substrate(s) (separated by commas):
Substrate binding constants (affinity for substrates):
Mode of energy coupling:
Polarity (transport direction):
Mechanism (e.g. symport, antiport):
Text Description:
 If you have information about more proteins that are associated with this transport family, you may create another section on this form for it.
Click the button to reload the page with one additional section, "Protein Information #2"

Transporter Information

[Suggested] Transport Classification (TC) Number:
When you enter a sequence, we compare it to proteins in TCDB. These are the TCDB-BLAST results:(No TCDB-BLAST hits)
Current family description:
Corrections or Expansion of Family Description:

Reference Information

PubMed ID Number (if available):
Reference (include all authors, journal name, etc.):


Any other Comments:
 If you know of a WWW link relevant to this transport family, you may add a section on this form for it.
Click the button to reload the page with one additional section, "Voluntary Link to External Database #1"

Please contact us to report problems with, or ask questions about this page.
Your entry will be reviewed before it is entered into TCDB.
We will use the email address you supply to contact you if we have questions about your entry.