What kind of external link, for example, a pointer to an external database. Types of links include the identifier type, such as “doi” for a Digital Object Identifier; the access method, such as “ftp” for an ftp site; or the specific external source to which the link points, such as the protein data bank “pdb”.
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | The type of link, for example, “ftp” or “uri”. This attribute may take any value, but see the list of suggested values below. |
| Restriction: This attribute must be specified if the element is used. | |
This list is slightly overloaded in that two different functions are being performed. The first is to name the specific external source when it is one of the ones named below. If the external source is not one of the ones below, the type of link (DOI, AOI) or type of access (ftp, URI, etc.) should be named instead. The idea is to be as specific as possible, i.e., if you are pointing to the Protein data bank, use “pdb” but if you are pointing to another protein registry though its URL, use “uri”.
|
aoi |
Astronomical Object Identifier |
|
cdd |
Conserved Domain Database |
|
doi |
Digital Object Identifier |
|
ec |
Enzyme nomenclature; see http://www.chem.qmw.ac.uk/iubmb/enzyme/ |
|
|
An email message |
|
entrez-gene |
Entrez Gene |
|
ftp |
File Transfer Protocol |
|
gen |
GenBank identifier |
|
genpept |
Translated protein-encoding sequence database |
|
highwire |
HighWire Press intrajournal |
|
hmh |
Human-Mouse Homology Maps |
|
medline |
MEDLINE or PubMed identifier |
|
mgi |
Mouse Genome Informatics |
|
omim |
Online Mendelian Inheritance in Man |
|
pdb |
Protein Data Bank; see http://www.rcsb.org/pdb/ |
|
pgr |
Plant Gene Register; see http://www.tarweed.com/pgr/b |
|
pir |
Protein Information Resource; see http://pir.georgetown.edu |
|
pirdb |
Protein information resource; see http://pir.georgetown.edu |
|
pmc |
Linkage between articles in PubMed Central (Access is PMID.) |
|
pubchem |
PubChem (repository of information on the biological activities of small molecules and their chemical structures); see http://pubchem.ncbi.nlm.nih.gov/ |
|
pubmed |
PubMed Central |
|
sgd |
Saacharomyces Genome Database |
|
snp |
Single Nucleotide Polymorphism |
|
sprot |
Swiss-Prot; see http://www.ebi.ac.uk/swissprot/ |
|
tax |
Taxonomy database; see http://http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=Taxonomy |
|
uri |
Website or web service |
|
wbase |
Wormbase |
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | The type of link, for example, “ftp” or “uri”. This attribute may take any value, but see the list of suggested values below. |
| Restriction: This attribute may be specified if the element is used. | |
This list is slightly overloaded in that two different functions are being performed. The first is to name the specific external source when it is one of the ones named below. If the external source is not one of the ones below, the type of link (DOI, AOI) or type of access (ftp, URI, etc.) should be named instead. The idea is to be as specific as possible, i.e., if you are pointing to the Protein data bank, use “pdb” but if you are pointing to another protein registry though its URL, use “uri”.
|
aoi |
Astronomical Object Identifier |
|
doi |
Digital Object Identifier |
|
ec |
Enzyme nomenclature; see http://www.chem.qmw.ac.uk/iubmb/enzyme/ |
|
ftp |
File Transfer Protocol |
|
|
An email message |
|
gen |
GenBank identifier |
|
genpept |
Translated protein-encoding sequence database |
|
highwire |
HighWire Press intrajournal |
|
medline |
MEDLINE or PubMed identifier |
|
pdb |
Protein Data Bank; see http://www.rcsb.org/pdb/ |
|
pgr |
Plant Gene Register; see http://www.tarweed.com/pgr/b |
|
pir |
Protein Information Resource; see http://pir.georgetown.edu |
|
pirdb |
Protein information resource; see http://pir.georgetown.edu |
|
pmc |
Linkage between articles in PubMed Central (Access is PMID.) |
|
pmid |
PubMed identifier |
|
sprot |
Swiss-Prot; see http://www.ebi.ac.uk/swissprot/ |
|
uri |
Website or web service |