Each public database supported in PathVisio has a specific system code that is used to identify which system a particular identifier belongs to.

The following list displays the proper system codes for PathVisio:

DataSource System Code
Affy X
Agilent Ag
BIND Bi
BioCyc Bc
BioGrid Bg
BioModels Database Bm
BioSystems Bs
BRENDA Br
CAS Ca
CCDS Cc
ChEBI Ce
Chemspider Cs
CodeLink Ge
Database of
dbSNP Sn
DrugBank Dr
EcoCyc Eco
EcoGene Ec
EMBL Em
Ensembl (All Species) En
Entrez Gene L
Enzyme Nomenclature E
FlyBase F
GenBank G
Gene Wiki Gw
GeneOntology T
 Gramene Arabidopsis EnAt
 Gramene Genes DB
 Gramene Literature Gl
 Gramene Maize EnZm
 Gramene Pathway Gp
 Gramene Rice EnOj
HGNC H
HGNC Accession Number Hac
HMDB Ch
HomoloGene Hg
HPRD Hp
Illumina Il
IntAct Ia
InterPro I
IPI Ip
IRGSP Gene Ir
KEGG Compound Ck
KEGG Drug Kd
KEGG Genes Kg
KEGG Glycan Kl
KEGG Pathway Kp
KEGG Reaction Rk
LIPID MAPS Lm
LipidBank Lb
MACiE Ma
MaizeGDB Mg
MatrixDB Md
MetaCyc Mc
MGI M
MINT Mi
miRBase mature sequence Mbm
miRBase sequence Mb
NASC Gene N
NCBI Protein Np
NCI Pathway Interaction Database Pid
NuGO wiki Nw
OMIM Om
Oryzabase Ob
Other O
Pathway Commons Pc
PDB Pd
Pfam Pf
PharmGKB Drug Pgd
PharmGKB Gene Pgg
PharmGKB Pathways Pgp
PhosphoSite Protein Pp
PINA Pi
PlantGDB Pl
PubChem-bioassay Cpb
PubChem-compound Cpc
PubChem-substance Cps
Reactome Re
RefSeq Q
RESID Res
Rfam Rf
RGD R
Rhea Rh
Rice Ensembl Gene Os
SGD D
Small Molecule Pathway Database Sm
SMART Sma
SPIKE Sk
SPRINT Spr
STRING Str
SubstrateDB Sdb
SubtiWiki Bsu
SUPFAM Sf
SWISS-MODEL Sw
Systems Biology Ontology Sbo
TAIR A
TIGR Ti
TTD Drug Td
TTD Target Tt
TubercuList Tb
UCSC Genome Browser Uc
UniGene U
Unipathway Up
Uniprot-TrEMBL S
Uniprot-SwissProt Sp
Wheat gene names Wn
Wheat gene refs Wr
WikiGenes Wg
WikiPathways Wp
Wikipedia Wi
WormBase W
XMetDB Xm
ZFIN Z