The LabelHash Server

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Welcome to the LabelHash server! It runs the LabelHash algorithm as described in our CSB 2008 paper. Given a point-based motif, it will compute all matches in a non-redundant version of the PDB. The points in this case are the C-alpha coordinates of a number of residues. It is possible to specify alternate residue labels for each motif point.

Fill out the form below to specify a motif. If you click submit, your job will be submitted to a queue. You will receive an email message once your job starts. Once your job is finished, you will receive another email message with a file of matches attached. You can visualize the file with matches using our ViewMatch plugin for Chimera. You can also look at them as plain text using the command:
xmllint -format mymatches.xml | less
Xmllint is part of the libxml2 package and is often already installed on UNIX-like operating systems such as Linux and OS X. If you would like to run LabelHash on your own machines, download the command line version of LabelHash.

Define a motif

PDB id for motif:

Chain id for motif:

Max. RMSD for a match:
Larger values result in more accurate matches, but take much longer to compute.

Motif points:
The motif points are residue sequence numbers as they appear in the PDB file. Check all allowed one-letter residue names. If no labels are checked for a residue, only the residue found in the PDB file is allowed. Motifs can consist of up to 10 points.

Residue ID:	Alternate Amino Acid Labels:
	A	C	D	E	F	G	H	I	K	L	M	N	P	Q	R	S	T	V	W	Y
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:

A: Alanine, C: Cysteine, D: Aspartic Acid, E: Glutamic Acid, F: Phenylalanine, G: Glycine, H: Histidine, I: Isoleucine, K: Lysine, L: Leucine, M: Methionine, N: Asparagine, P: Proline, Q: Glutamine, R: Arginine, S: Serine, T: Threonine, V: Valine, W: Tryptophan, Y: Tyrosine

Email:

Job Status:

Waiting for motif definition