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University of Nebraska–Lincoln


Home of the farrp allergen protein database

Added Allergenicity explanation to "Browse the Database" table on 10 May 2018 based on historical reviews:

Version 18B on 23 March 2018: History of the AllergenOnline database releases

The table below shows the total count of sequences in each release of the allergen online database.
Also shown are the number of allergen groups (A collection of protein types within a taxonomic group) and number of unique species represented in each version.

Note, version 18 update was released on 18 January 2018, but was missing some information of WHO/IUIS allergen numbers and also used a few accession numbers that were not optimum. A full review of the database was performed from 19 January until 31 January with corrections made as version 18A which was posted on 1 February 2018.

NOTE 2: Removal of green-fluorescent protein from Scleronephthya gracillima on 23 March 2018.

In March, 2018 we were asked an important question regarding the validity of the allergenicity of the green-fluorescent protein from Scleonephthya gracillima an octocoral coral. There are four proteins of greater than 90% identity and only one paper, from Kato et al., 2017, Luminescence 32(6):1009-1016. Our panel had given it mixed reviews in accepting that as a putative allergen. Upon re-review 20 March, 2018, the full panel agreed the data from Kato et al., did not demonstrate specificity of IgE binding. Their patient population was unspecificied lobster fishermen from Japan with dermatitis or asthma. Pooled sera was used to demonstrate IgE binding. There was markedly more binding to two other uncharacterized proteins, altough the major IgE binding protein also had binding from a pool of "non-allergic" subjects. The protein sequence was determined by a peptide from LC-MSMS, then cDNA clones were constructed. The allergic subjects sera was not used to demonstrate IgE binding to pure protein. We conclude that the IgE binding was not specific or that the binding was sufficiently weak and the protein should not be included even as a "putative" allergen, our lowest category of allergen. A more detailed report can be obtained by email request to

Letter GFP removal
Version Release Date Sequences Groups Species
5 Jan 2005 1189 608 208
6 Jan 2006 1537 672 255
7 Jan 2007 1251 461 221
8 Jan 2008 1313 483 229
9 Jan 2009 1386 502 236
10 Jan 2010 1471 529 254
11 Feb 2011 1491 553 265
12 Feb 7, 2012 1603 603 273
13 Feb 12, 2013 1630 612 275
14 Jan 20, 2014 1706 645 290
15 Jan 12, 2015 1897 744 335
16 Jan 27, 2016 1956 778 345
17 Jan 16, 2017 2035 808 354
18 Jan 18, 2018 2101 833 376
18A Feb 1, 2018 2093 832 370
18B Mar 23, 2018 2089 831 369

Version History of the Celiac Disease database release version 2, 18 January 2018

Version 1 of the Celiac Database was available for public use on 14 February, 2012.

A Beta version of the Celiac database was installed in August, 2017. The updates included new 9 amino acid peptide entries from the European Food Safety Authority panel as they should be bound by HLA DQ2 (DQ2.5, DQ2.2, Cis or trans) or DQ8. Beta version 2 was updated in September, 2017 with removal of 8 amino acid matches, bringing the total to 2013 peptides including native and specifically deamidated peptides. BLASTP testing with the 9 AA peptides demonstrated that a few match proteins outside of the grass family and the word "CAUTION" was added for those entries. Beta version 3 was posted on 5 October 2017 and includes four new representative proteins. The FASTA search feature has been validated again and the final Celiac Disease database version 2 release was 18 January 2018. RE Goodman