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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <herd>sci-chemistry</herd>
+ <maintainer>
+ <email>jlec@gentoo.org</email>
+ </maintainer>
+ <longdescription>
+TM-align is a computer algorithm for protein structure alignment using dynamic
+programming and TM-score rotation matrix. An optimal alignment between two
+proteins, as well as the TM-score, will be reported for each comparison. The
+value of TM-score lies in (0,1]. In general, a comparison of TM-score smaller
+0.2 indicates that there is no similarity between two structures; a TM-score
+greater 0.5 means the structures share the same fold.
+
+What is the difference between TM-score and TM-align? The TM-score program
+is to compare two models based on their given and known residue equivalency.
+It is usually NOT applied to compare two proteins of different sequences. The
+TM-align is a structural alignment program for comparing two proteins whose
+sequences can be different. The TM-align will first find the best equivalent
+residues of two proteins based on the structure similarity and then output a
+TM-score. The TM-score values in both programs have the same definition.
+</longdescription>
+</pkgmetadata>