lDDT Local Distance Difference Test

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This is the original implementation of lDDT, from 2013.

You should instead be using version 2.0, now incorporated into the Structure Assessment tool!

The local Distance Difference Test (lDDT) is a superposition-free score which evaluates local distance differences in a model compared to a reference structure. Please provide model and reference structures (using identical numbering of the amino acid sequence):
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Download a reference example
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If you use local distance difference test (lDDT), please cite the following reference:

Mariani, V., Biasini, M., Barbato, A., Schwede, T. lDDT: a local superposition-free score for comparing protein structures and models using distance difference tests. Bioinformatics 29, 2722-2728 (2013).