Title
UC2 search: Using unique connectivity of uncharged compounds for metabolite annotation by database searching in mass spectrometry-based metabolomics.
Abstract
For metabolite annotation in metabolomics, variations in the registered states of compounds (charged molecules and multiple components, such as salts) and their redundancy among compound databases could be the cause of misannotations and hamper immediate recognition of the uniqueness of metabolites while searching by mass values measured using mass spectrometry. We developed a search system named UC2 (Unique Connectivity of Uncharged Compounds), where compounds are tentatively neutralized into uncharged states and stored on the basis of their unique connectivity of atoms after removing their stereochemical information using the first block in the hash of the IUPAC International Chemical Identifier, by which false-positive hits are remarkably reduced, both charged and uncharged compounds are properly searched in a single query and records having a unique connectivity are compiled in a single search result.
Year
DOI
Venue
2018
10.1093/bioinformatics/btx649
BIOINFORMATICS
Field
DocType
Volume
Data mining,Annotation,Identifier,Chemical nomenclature,Computer science,Metabolomics,Redundancy (engineering),Hash function,Mass spectrometry,Bioinformatics,Web service,Database
Journal
34
Issue
ISSN
Citations 
4
1367-4803
1
PageRank 
References 
Authors
0.36
6
7
Name
Order
Citations
PageRank
Nozomu Sakurai1101.68
Narise Takafumi210.36
Sim Joon-Soo310.36
Lee Chang-Muk410.36
Ikeda Chiaki510.36
Akimoto Nayumi610.36
Shigehiko Kanaya710.70