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fcyu · Mar 15, 2018 · 9031e71 · 9031e71
1 parent e275b43
commit 9031e71
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/java/proteomics/Index/BuildIndex.java b/src/main/java/proteomics/Index/BuildIndex.java
@@ -270,7 +270,7 @@ private Map<String, Set<String>> buildSeqProMap(Map<String, String> pro_seq_map,
 
                         boolean n_term = false;
                         boolean c_term = false;
-                        if (decoy_pro_seq.startsWith(decoy_seq.substring(1, decoy_seq.length() - 1))) { // here, we don't consider the first "M" being cut situation.
+                        if (decoy_pro_seq.startsWith(decoy_seq.substring(1, decoy_seq.length() - 1))) { // here, we don't consider the first "M" being cut situation because it is the decoy sequence. The first "M" doesn't have any meaning.
                             n_term = true;
                         }
                         if (decoy_pro_seq.endsWith(decoy_seq.substring(1, decoy_seq.length() - 1))) {