Merge branch 'trunk' of github.com:PDB-REDO/dssp into trunk

README.md

@@ -6,6 +6,9 @@ with previous releases of DSSP is that it now writes out an annotated mmCIF
 file by default, storing the secondary structure information in the 
 file by default, storing the secondary structure information in the 
 _struct_conf category.
 _struct_conf category.
 
 
+Another new feature in this version of DSSP is that it now defines
+Poly-Proline helices as well.
+
 The DSSP program was designed by Wolfgang Kabsch and Chris Sander to
 The DSSP program was designed by Wolfgang Kabsch and Chris Sander to
 standardize secondary structure assignment. DSSP is a database of secondary
 standardize secondary structure assignment. DSSP is a database of secondary
 structure assignments (and much more) for all protein entries in the Protein
 structure assignments (and much more) for all protein entries in the Protein

mkdssp.1

@@ -16,10 +16,12 @@ The original DSSP program wrote output in a fixed format, this version
 by default writes annotated mmCIF files, storing the secondary structure
 by default writes annotated mmCIF files, storing the secondary structure
 information in the _struct_conf category.
 information in the _struct_conf category.
 .sp
 .sp
-Since version 4.0 the mkdssp program also assigns PP helices.
+Since version 4.0 the mkdssp program also assigns PPII helices.
 .SH OPTIONS
 .SH OPTIONS
 The input file can be either mmCIF or PDB format and the file may be
 The input file can be either mmCIF or PDB format and the file may be
-gzip or bzip2 compressed.
+gzip or bzip2 compressed. Note that input files must be formatted correctly.
+E.g. PDB files must have a CRYST1 record. More info:
+https://www.wwpdb.org/documentation/file-format-content/format33/sect8.html#CRYST1
 .sp
 .sp
 The output is optional, if omitted the output is written to \fIstdout\fR. If
 The output is optional, if omitted the output is written to \fIstdout\fR. If
 the name of the output file ends with either \fI.gz\fR or \fI.bz2\fR the
 the name of the output file ends with either \fI.gz\fR or \fI.bz2\fR the