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Revision as of 09:00, 2 December 2009
This document provides examples of some of the adopted and proposed techniques for scoring source and result data in order to more accurately identify bioentities in the literature.
Contents
Acronym Mentions and Techniques
PubMed #18370233
"The role of inactivating and activating calcium-sensing receptor (CASR) mutations is discussed"
calcium-sensing receptor | ( | CASR | ) |
explanation | acronym | ||
synonym for CASR (#846) | match for CASR (#846) |
- agreement (acronym and explanation support each other)
"with respect to familial hypocalciuric hypercalemia (FHH) and autosomal dominant hypocalemia (ADH)."
familial hypocalciuric hypercalemia | ( | FHH | ) |
explanation (not detected) | acronym | ||
match for CASR (#846) |
- no agreement (if explanation detected speculatively)
- FHH would not represent CASR despite matching an established gene
- See also PubMed #18393128: "papillary thyroid carcinomas (PTCs)"
PubMed #19364970
"PATIENTS AND METHODS: In addition to UGT1A1*28, UGT1A1*60, UGT1A1*93, UGT1A7*3, and UGT1A9*22 were genotyped in 250 metastatic colorectal cancer patients, and associations with severe hematologic and nonhematologic toxicity, objective response, time to progression (TTP), and overall survival were evaluated."
time to progression | ( | TTP | ) |
explanation (not detected) | acronym | ||
ZFP36 (#7538) ADAMTS13 (#11093) SH3BP4 (#23677) |
- no agreement (if explanation detected speculatively)
- TTP would not represent ZFP36, ADAMTS13 or SH3BP4
PubMed #18281285
"We have previously shown that ASK1-interacting protein 1 (AIP1) transduces tumor necrosis factor-induced ASK1-JNK signaling."
ASK1-interacting protein 1 | ( | AIP1 | ) |
explanation | acronym | ||
synonym for DAB2IP (#153090) | matches for numerous genes including DAB2IP (#153090) |
- agreement for DAB2IP
- disagreement for other genes associated with AIP1
"Because endoplasmic reticulum (ER) stress activates ASK1-JNK signaling cascade, we investigated the role of AIP1 in ER stress-induced signaling."
endoplasmic reticulum | ( | ER | ) |
explanation | acronym (not detected) | ||
Gene Ontology term |
- no agreement (but the acronym does not require definition)
PubMed #16566752
"In the present study, we subjected CD1 male mice to intraperitoneal injection with TNFalpha (10 ng/mouse) and then examined the expression and localization of DMT1 (divalent metal transporter 1), IREG1 (iron-regulated protein 1) and ferritin in duodenum."
localization of | DMT1 | ( | divalent metal transporter 1 | ) |
suggestion | description (not detected) | |||
DMRT1 (#1761) SLC11A2 (#4891) CHMP2B (#25978) |
summary: "The SLC11A2 gene encodes a divalent metal transporter (DMT1)" |
- agreement between summary of #4891 and description
- see also this document in the disambiguation techniques documentation
PubMed #10036216
"Phenobarbital (PB) and many structurally unrelated chemicals induce the protein and mRNA of P450 cytochromes CYP2B1, CYP2B2, CYP3A1, and specific phase II enzymes to a greater extent in Fischer 344 (F344) than in Wistar Furth (WF) female rats."
Phenobarbital | ( | PB | ) |
explanation | suggestion | ||
chemical name | SMR3B (#10879) |
- disagreement between suggestion and chemical name
PubMed #2674130
"A new family of ras-related proteins, designated rac (ras-related C3 botulinum toxin substrate) has been identified. rac1 and rac2 cDNA clones were isolated from a differentiated HL-60 library and encode proteins that are 92% homologous and share 58% and 26-30% amino acid homology with human rhos and ras, respectively."
A new family of ras-related proteins, designated | rac | ( | ras-related C3 botulinum toxin substrate | ) |
suggestion | explanation (not detected) | |||
AKT1 (#207) |
- suggestion not confirmed by explanation
PubMed #7512734
"Here another guanine nucleotide-releasing protein (GNRP), C3G, has been identified as a CRK SH3-binding protein."
Here another | guanine nucleotide-releasing protein | ( | GNRP | ) |
explanation (not detected) | suggestion | |||
RASGRF1 (#5923) |
- suggestion not confirmed by explanation
PubMed #9569054
"The primary end point of the present multicentre, randomized, parallel-group phase II study was to determine the activity of the simplified 2-day EAP schedule in patients with locally advanced or metastatic gastric cancer, and to verify whether the addition of low doses of granulocyte-macrophage colony-stimulating factor (GM-CSF) made it possible to increase dose intensity."
granulocyte-macrophage colony-stimulating factor | (GM- | CSF | ) |
suggestion/explanation | suggestion/acronym | ||
CSF2 (#1437) | LAMC2 (#3918) |
- incomplete match for the acronym causes an inappropriate suggestion
PubMed #11916966
"We observed a novel endogenous association of BRCA1 with Nmi (N-Myc-interacting protein) in breast cancer cells."
of BRCA1 with | Nmi | ( | N-Myc-interacting protein | ) |
suggestion | suggestion/explanation (not detected) | |||
NMI (#9111) MYO1C (#4641) |
- inappropriate suggestion should have been redefined
- later mentions of "Nmi" are thus also inappropriate
Confirmation of Mention Suggestions
PubMed #11137999
Method: to be implemented
"Here we report the identification of a new transmembrane serine protease (TMPRSS3; also known as ECHOS1) expressed in many tissues, including fetal cochlea, which is mutated in the families used to describe both the DFNB10 and DFNB8 loci."
( | TMPRSS3 | ; also known as | ECHOS1 | ) |
suggestions | suggestion | |||
TMPRSS3 (#64699) TMPRSS4 (#56649) |
TMPRSS3 (#64699) |
- TMPRSS3 (#64699) occurs for both mentions
- "also known as" could be used as a key to such situations
- close proximity of mentions (as seen with acronyms) could be sufficient
Note that the above also involves an acronym.
PubMed #7479798
Method: confirmed_by_competing_names
"Cloning and analysis of the full-length cDNA of the human CSE1 homologue, which we name CAS for cellular apoptosis susceptibility gene, reveals a protein coding region with similar length (971 amino acids for CAS, 960 amino acids for CSE1) and 59% overall protein homology to the yeast CSE1 protein."
human | CSE1 | homologue, which we name | CAS |
suggestion | suggestions | ||
CSE1L (#1434) | CSE1L (#1434) CTNND1 (#1500) BCAR1 (#9564) |
- CSE1L (#1434) is supported by two different names
- CTNND1 (#1500) and BCAR1 (#9564) are not supported by any other names
- the "which we name" text also confirms the equivalence of the two entities
Finding Unambiguous Gene Mentions
In various disambiguation techniques, an unambiguous gene mention may be needed in order to disambiguate between competing gene suggestions. Consequently, a reliable method is needed to find "high quality" suggestions which can be considered as unambiguous gene mentions. Consider the following document excerpt:
PubMed #9788873
"In mouse embryo fibroblasts, TCDD activates expression of multiple genes, including CYP1B1, the predominant cytochrome P450 expressed in these cells."
Mentions | Suggestions | Methods | |
---|---|---|---|
unambiguous_at_exact_location | not_part_of_other_mentions | ||
CYP1B1 | CYP1B1 (#1545) | X | X |
CYP1 | CYP1A1 (#1543) | ||
CYP2A (#1546) | |||
CYP27B1 (#1594) | |||
CYP | PPIG (#9360) | X |
- Here, CYP1B1 (#1545) can be considered at this location as an unambiguous gene mention.
If the above methods taken together are known as an "unambiguous gene mention" method, the fundamental technique can be defined in terms of this method. However, in order to eliminate obvious bad suggestions for genes, it is also necessary to apply other methods in order to identify good suggestions more reliably.
Disambiguating using Unambiguous Mentions
Within the same document, the presence of unambiguous gene mentions can be used to help disambiguate at other mention locations where an unambiguously identified gene may be "competing" with other genes, typically using a name which is ambiguous. For example:
PubMed #10484773
Method: disambiguated_by_unambiguous_gene_mention
"A common genetic variant (V) of the human luteinizing hormone (LH) beta-subunit gene was recently discovered."
of the | human luteinizing hormone (LH) beta | -subunit gene |
suggestion | ||
LHB (#3972) |
With this unambiguous mention identified and the presence of the suggested gene confirmed, this knowledge can be applied to other mention locations. For example:
"We have now studied whether additional mutations in the V-LHbeta promoter sequence could contribute to the altered physiology of the LH variant molecules."
in the | V-LHbeta | promoter sequence |
suggestions | ||
LHB (#3972) PLOD2 (#5352) LHX2 (#9355) |
Since the latter two genes are not unambiguously identified in the document, yet the first gene has been identified (see above), the latter two genes are scored negatively and are regarded as not being referenced.
Note that the confirmed_by_competing_names method also resolves these mentions.
Gene Ontology Correspondence
PubMed #16566752
"In the present study, we subjected CD1 male mice to intraperitoneal injection with TNFalpha (10 ng/mouse) and then examined the expression and localization of DMT1 (divalent metal transporter 1), IREG1 (iron-regulated protein 1) and ferritin in duodenum."
of | DMT1 | (divalent metal transporter 1), | IREG1 | (iron-regulated protein 1) |
suggestions | suggestion | |||
DMRT1 (#1761) SLC11A2 (#4891) CHMP2B (#25978) |
SLC40A1 (#30061) |
Gene Ontology (Function) correspondence could be used:
DMRT1 | SLC11A2 | CHMP2B | IREG1 | |
(#1761) | (#4891) | (#25978) | (#30061) | |
ferrous iron transmembrane transporter activity | X | |||
iron ion binding | >2 | X | X | |
iron ion transmembrane transporter activity | <1 | X | ||
metal ion binding | X | |||
zinc ion binding | X | X |
- X: exact match
- <1: more specific match: ferrous iron transmembrane transporter activity => iron ion transmembrane transporter activity
- >2: more general match: metal ion binding <= transition metal ion binding <= iron ion binding
Chromosome Information Correspondence
PubMed #10072425
"The t(X;18)(p11.2;q11.2) chromosomal translocation commonly found in synovial sarcomas fuses the SYT gene on chromosome 18 to either of two similar genes, SSX1 or SSX2, on the X chromosome."
the | SYT | gene on | chromosome 18 |
suggestion | information | ||
SS18 (#6760) (chromosome 18) SYT1 (#6857) (chromosome 12) |
chromosome 18 |
- SS18 chromosome matches the accompanying information.
- Note that "X chromosome" is also mentioned in the sentence.