title: A new perspective on V3 phenotype prediction.
abstract: The particular coreceptor used by a strain of HIV-1 to enter a host cell is highly indicative of its pathology. HIV-1 coreceptor usage is primarily determined by the amino add sequences of the V3 loop region of the viral envelope glycoprotein. The canonical approach to sequence-based prediction of coreceptor usage was derived via statistical analysis of a less reliable and significantly smaller data set than is presently available. We aimed to produce a superior phenotypic classifier by applying modern machine learning (ML) techniques to the current database of V3 loop sequences with known phenotype. The trained classifiers along with the sequence data are available for public use at the supplementary website: http://genomiac2.ucsd.edu:8080/wetcat/v3.html and http://www.cs.waikato.ac.nz/ml/weka[corrected].
authors.affiliation: University of California, San Diego, La Jolla, California 92093, USA. satish@biomail.ucsd.edu
authors.forename: Satish
authors.initials: S
authors.lastname: Pillai
authors.forename: Benjamin
authors.initials: B
authors.lastname: Good
authors.forename: Douglas
authors.initials: D
authors.lastname: Richman
authors.forename: Jacques
authors.initials: J
authors.lastname: Corbeil
mesh_terms: D000595:Amino Acid Sequence; D019295:Computational Biology / Q000379:methods*; D015699:HIV Envelope Protein gp120 / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D015497:HIV-1 / Q000145:classification* / Q000378:metabolism; D006801:Humans; D008969:Molecular Sequence Data; D010446:Peptide Fragments / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D010641:Phenotype; D011237:Predictive Value of Tests; D019713:Receptors, CCR5 / Q000378:metabolism*; D054380:Receptors, CXCR5; D019707:Receptors, Chemokine; D018121:Receptors, Cytokine / Q000378:metabolism*; D012984:Software
chemical_list: C095085:CXCR5 protein, human; D015699:HIV Envelope Protein gp120; C059762:HIV envelope protein gp120 (305-321); D010446:Peptide Fragments; D019713:Receptors, CCR5; D054380:Receptors, CXCR5; D019707:Receptors, Chemokine; D018121:Receptors, Cytokine