We built a custom reference sequence database that covers all pathways and enzymes represented in the MetaCyc [45] pathway database by combining the protein sequences that are distributed with MetaCyc (including sequences for which only cross references to external databases were provided) with EC-number associated sequences from the SwissProt Enzyme database [46].
And, should you doubt a particular recollection, you need only cross-reference with his reporter-father's account of the same events.
I like, for example, the Shorter's definition for "mook" ("a stupid or incompetent person") with an illustration from Mr. Lee, "Who are you gonna listen to, me or that mook?" But in that case, there is also too little information: Only cross-references lead the reader to guess that the word evolved out of a racial slur.
And the Mail on Sunday could well regret its odd counter-intuitive decision to carry only a cross reference on its front page.
But cross-reference (n. and v). is conversational English.
Annotations are fixed for each metabolic entity only allowing cross referencing to two specific resources.
The inclusion of full chemical structure in a genome-scale metabolic model is advantageous over only including a cross reference.
By contrast, the Daily Mirror carried only a picture with a cross reference to an inside piece written by Corbyn ("Jezza writes for the Daily Mirror").
We introduced a new evidence level, called TOPDOM for entries which contain cross reference(s) only to the TOPDOM database and updated the text and Fig. 2 in the manuscript accordingly.
Finally, usage of the KOOS in large scale databases such as the Scandinavian ACL registries (Granan et al. 2009) and in the US MOON database (Dunn et al. 2010) enables not only cross cultural comparisons but also provides reference data (Ageberg et al. 2010).
In this respect today's most successful (i.e. widely used) data integration approaches such as SRS [ 3] or Entrez [ 4] show only weak, cross-reference based data integration without semantic mapping to a common concept (categorised as link/index integration by Köhler [ 5] and Stein [ 6]).
