You can search by interaction filters (facets) or any field alone, or together in any
combination.
The General Query field is similar to a Google search in that it accepts
plus and minus operators before terms. For example a search that must match cancer, but
must not match tumor: +cancer -tumor
The Organism filter has an auto-complete input field that you can use to find and
enter an organism name not explicitly listed above it. Select the Show Custom Ranges & Distribution Links to view and use
this option.
Downloading Your Interactome
The file formats available for download are:
as MITAB where first line of the file provides the column headers.
Interactions that are supported by evidence only from DIP and HPRD will be excluded from
your download. There should be sufficient overlap with public databases in most cases to still provide you with a
reasonable set of records.
Should your results contain complexes, they will be expanded into binary records.
Because in some cases records maybe excluded (private databases), and in other cases expanded (complexes), the number of lines in the file will not necessarily
be exactly the same as the number interactions that matched your search.
Filters
The Interaction Evidence Filters, even if unselected, tell you just how your search results are
distributed across various aspects of an interaction. The number of interactions that match
a particular filter item with respect to the current query are displayed in parenthesis
beside each item: Physical or Genetic Interaction > physical interaction (162)
As you refine your search these numbers will change to reflect the other filters selected and/or your search terms.
The filters with radio buttons, when selected are the same as saying the interaction must match.
The filters with check boxes implies must at least match. Thus selecting several items
in the same filter means an interaction must at least match one of the selctions; for instance using the Source Database
filter and selecting bind, biogrid, and hprd means an interaction
must be annotated by at least one of
bind or biogrid or hprd.
An interaction can be multi-valued with respect to a filter. For example an interaction
can be supported by evidence from several source databases, so it contributes to the match count
of each those databases.
Select the Show Custom Ranges & Distribution Links to set your own range for numeric filters.
Obtaining the Complete Data Set
If you wish to have the entire data set, please visit iRefIndex.
Search Results Table
The columns of the search results table, from left to right are:
The interaction id -- click on the number to view that interaction's details.
The interacting proteins, if the interaction is binary. The proteins are coloured by
their organism.
The number of proteins in the interaction.*
The number of PubMeds that support the interaction.*
LPR and HPR: Lowest and Highest PubMed Re-use. A publication may be used to support more
than one interaction. These scores are the lowest and highest number of unique interactions
that are supported by one of the interaction's PMIDs. This can be read as rough measure of 'throughput'. For more information, see the FAQ.*
The number of source databases that annotated the interaction.*
The total number of records (evidence) from all source databases for this interaction.*
* Starred items indicate a sortable column. The cells in these columns are coloured according to their value relative to the whole range of possible values, from red (minimum) to green (maximum).
More than one possible assignment is possible (+). This case may arise in one of three ways. 1) The reference supplied by the interaction record requires updating but more than one possibility exists. For example, Q7XJL8 was found to be a secondary access
D
The source database (D) listed in the interaction record is different than what is expected for the given accession for the protein. In specific cases, this difference is tolerated and the assignment is made.
E
The protein reference was a retired NCBI Identifier. NCBI's eUtils (E) were used to retrieve the current accession and/or sequence.
G
The interaction record's reference for the protein was an EntrezGene (G) identifier. The corresponding products of the gene were used to make the assignment.
I
The protein reference used was an NCBI GenInfo Identifier (I).
L
More than one possible assignment is possible (see + above). The assignment with the largest (L) SEGUID is arbitrarily chosen (see Methods)
M
The protein reference listed by the interaction record was a typographical modification (M) of a known accession. In specific cases, this variation is tolerated and the assignment is made.
N
The protein reference, taxonomy identifier and sequence for the protein as provided in the interaction record are used to make a new entry in the SEGUID table. The protein interactor is assigned the newly (N) generated ROG identifier.
O
More than one possible assignment is possible (see + above). The assignment chosen has a SEGUID that is identical to the SEGUID of the original (O) sequence provided in the interaction record.
P
Primary accession was used
Q
The protein reference used to make the assignment was of the type 'see-also'. See PSI-MI Path: entrySet/entry/interactorList/interactor/xref/primaryRef/refType = 'see-also'.
S
Secondary accession was used
T
The taxonomy (T) identifier for the protein (as supplied by the interaction record) differed from what was found in the protein sequence record. This discrepancy was tolerated and the assignment was made
U
The protein reference listed in the interaction record and used to make the assignment was a secondary UniProt accession and was updated (U) to a primary UniProt accession in order to make the assignment.
V
The protein reference listed by the interaction record contained version (V) information that was ignored. For example, RefSeq accession.version NP_012420.1 was listed but treated as RefSeq accession NP_012420.
X
More than one possible assignment is possible (see + above). The assignment chosen has the same taxonomy (X) identifier as listed in the interaction record
Y
The accession was referring an accession which was removed (deleted) from RefSeq or UniProt
The download comes in two formats:
MITAB (see the help section for details).
As a list of Interaction IDs for use in OrthoNets.
There will be a pause (a few seconds or more) depending on the number of records
and then your download will begin.
Note: if any interactions are exclusively from BINDTranslation they will be suppressed because it is not yet public.
A publication may be used to support more than one interaction. The LPR and HPR metrics (lowest PubMed Identifier re-use, highest PubMed Identifier re-use) are the lowest number of unique interactions that are supported by one of the interaction's PubMedIDs
and the highest number of unique interactions that are supported by one of the interaction's PMIDs respectively.
Some of the original interaction records from source databases may have
missing or incomplete PSI-MI annotations, which may affect the accuracy of
the search filters based on the PSI-MI terms. However, the information on
the nature of an interaction, and the experimental methods used to
identify it, constitute an important part of the curated interaction
records. Therefore we have retained these original annotations along with
the curated interaction data.