Dear Shengbo Fan,
many thanks for your reply. Unfortunately, I did not use the SS_0 linker but rather the DSS. Below you will find the ini file that I used for processing perhaps that would help to track the problem.
Thanks a lot,
Markus
[pLink]
sample.num=1
sample1.spectra.instrument=HCD
sample1.spectra.format=mgf
sample1.spectra.path=D:\software\plink\bd4z3\
sample1.spectra.title=bd4z3
enzyme.name=Trypsin
database.path=D:\Software\plink\top6proteinIDs.fasta
database.name=top6proteins
max_miss_site=2
mod.fixed.total=1
mod.fixed.1=Carbamidomethyl_C
mod.variable.total=1
mod.variable.1=_Oxidation_M_15.995
mod.variable.2=_Deamidation_NQ_0.984014
linker.total=1
linker.name1=DSS
noninterexport=true
drawpsm=true
# for combinatorial mode peptide_tol_total could only be 1
peptide_tol_total=5
peptide_tol1=50
peptide_tol_type1=ppm
peptide_tol_base1=0.000000
peptide_tol_base_type1=Da
peptide_tol2=50
peptide_tol_type2=ppm
peptide_tol_base2=1.007825035
peptide_tol_base_type2=Da
peptide_tol3=50
peptide_tol_type3=ppm
peptide_tol_base3=2.01565007
peptide_tol_base_type3=Da
peptide_tol4=50
peptide_tol_type4=ppm
peptide_tol_base4=3.023475105
peptide_tol_base_type4=Da
peptide_tol5=50
peptide_tol_type5=ppm
peptide_tol_base5=4.03130014
peptide_tol_base_type5=Da
# -------------------notes----------------------
# type of base is Da
filter_peptide_tol_base=0,1.007825035,2.01565007,3.023475105,4.03130014
filter_peptide_tol_lb=-10,-10,-10,-10,-10
filter_peptide_tol_ub=10,10,10,10,10
filter_peptide_tol_type=ppm
# filter_peptide_tol_base=0
# filter_peptide_tol_lb=-10
# filter_peptide_tol_ub=10
# filter_peptide_tol_type=ppm
evalue_max=1
processor_num=1
# -------------------notes----------------------
# type of report
show_peptide_tol_type=ppm
bin.path=D:\software\plink\pLink_release\
output.path=D:\software\plink\bd4z3\top6\