<!--#if expr="$title" --> <!--#echo var="title" --> <!--#else --> HIV Drug Resistance Database <!--#endif -->
Stanford University HIV Drug Resistance Database - A curated public database designed to represent, store, and analyze the divergent forms of data underlying HIV drug resistance.

MARVEL on integrase mutations at position 143


HIVdb Algorithm: Comments & Scores
  • Y143C/R are nonpolymorphic mutations selected by RAL. Alone, Y143C and Y143R reduce RAL susceptibility by ~5 and 20-fold, respectively, but in combination with T97A or other accessory mutations they reduce RAL susceptibility >100-fold. Alone, Y143C/R have minimal effects on EVG susceptibility. However, they are associated with 10 to 20-fold reduced EVG susceptibility when they occur in combination with greater or equal than 2 accessory INI-resistance mutations (such as L74M, T97A, G163R, and S230R). Y143 mutations do not reduce DTG susceptibility.
  • Y143C/R are nonpolymorphic mutations selected by RAL. Alone, Y143C and Y143R reduce RAL susceptibility by ~5 and 20-fold, respectively, but in combination with T97A or other accessory mutations they reduce RAL susceptibility >100-fold. Y143H is a less-common mutation at this position. It is likely a transitional mutation between the wildtype Y and the 2-base pair mutant R.
  • Y143K/G/S/A are extremely rare mutations that reduce RAL susceptibility by 5 to 10-fold.

MutationRALEVGDTG
Y143A60100
Y143C60100
Y143G60100
Y143H60100
Y143K60100
Y143R60100
Y143S60100
Footnote:Mutation scores on the left are derived from published literature linking mutations and ARVs (the complete details can be found in the HIVdb Release Notes).
Genotype-treatment correlation
Mutation frequency according to subtype and drug-class experience.
The frequency of each mutation at position 143 according to subtype and drug-class experience. Data are shown for the 8 most common subtypes. The number of persons in each subtype/treatment category is shown beneath the subtype. Mutations occurring at a frequency >0.5% are shown. Each mutation is also a hyper-link to a separate web page with information on each isolate, including literature references with PubMed abstracts, the GenBank accession number, and complete sequence and treatment records.

PosWTINI Naive Persons INI Treated Persons
A
337
B
3840
C
1154
D
138
F
228
G
152
AE
1121
AG
548
 
A
1
B
191
C
2
D
6
F
4
G
1
AE
1
AG
2
143 Y   H 0.5        R 10
C 3.3
S 1.1
H 1.1
K 1.1
G 0.5
  R 25 R 100   
Footnote: The query page Mutation Prevalence According to Subtype and Treatment to examine the frequency of all mutations according to subtype and treatment; The program HIVSeq provides similar output for mutations in user-submitted sequences; A complete description of the program that generates these tables can be found at Rhee et al AIDS 2006.
 

Genotype-phenotype correlation
Phenotypes of top 10 common patterns of drug resistance mutations with mutations at position 143.
Mutation patterns are listed in the frequency with which they have been reported in the published literature. The median level of fold resistance (compared with wildtype) for viruses with the mutation pattern in the first column are indicated when available. The subscripts indicate the number of viruses that were phenotyped. The drug susceptibility assay used was the PhenoSense assay (Monogram, South San Francisco). A hyperlink for each individual pattern is provided to access a complete list of mutations and fold resistances for each sequence matching the pattern of mutation.

A complete summary of additional in vitro susceptibility data for viruses with Y143 obtained using other assays including the Antivirogram can be found here. A complete list of all mutation patterns with Y143 (not just the top 10 most frequent patterns) can be found at this page.

Mutation PatternsNumber of
Sequences
RAL
foldn
EVG
foldn
DTG
foldn
143R2679188.0131.03
143C1015162.9130.81
143H66.8132.6130.91
143C,155H4   
143R,155H2   
138A,140S,143H,148H2   
143H,155H2   
Footnote: Mutation patterns were defined by the presence or absence of major INI drug resistance mutations ; Sequences containing a mixture at a major drug resistance positions were excluded; For the cutoffs defined by PhenoSense, open the sample report form provided on this page; The full list of all mutation patterns are also available here.