diff --git a/mrdna/readers/list.psf b/mrdna/readers/list.psf
new file mode 100644
index 0000000000000000000000000000000000000000..89e10e7bb2651bfabdfc1e8cbe874ba71e2bc1f5
--- /dev/null
+++ b/mrdna/readers/list.psf
@@ -0,0 +1,39 @@
+PSF NAMD
+
+       0 !NTITLE
+
+       7 !NATOM
+         1 0        1        DNA      DNA      D000   0.000000      150.0000 0
+         2 0        2        DNA      DNA      D001   0.000000      300.0000 0
+         3 0        3        DNA      DNA      D001   0.000000      300.0000 0
+         4 1        4        NAS      NAS      S000   0.000000      150.0000 0
+         5 1        5        NAS      NAS      S000   0.000000      150.0000 0
+         6 1        6        NAS      NAS      S001   0.000000       75.0000 0
+         7 2        7        NAS      NAS      S000   0.000000      150.0000 0
+
+       7 !NBOND
+       4       7        3       7        1       2        1       6
+       2       3        4       5        5       6 
+
+       3 !NTHETA
+       5       4       7        4       5       6        1       2       3
+
+       0 !NPHI
+
+       0 !NIMPHI
+
+
+       0 !NDON: donors
+
+
+
+       0 !NACC: acceptors
+
+
+
+       0 !NNB
+
+      0      0      0      0      0      0      0
+
+       1       0 !NGRP
+