Investigation of immune escape-associated mutations of hepatitis B virus in patients harboring hepatitis B virus drug-resistance mutations.
PMID: 32994690
2020
World journal of gastroenterology
Abstract: In particular, these mutations were sQ101H/K/R, sS114A/L/T, sT118A/K/M/R/S/V, sP120A/L/Q/S/T, sT/I126A/N/P/S, sM133I/L/T, sC137W/Y, sG145A/R, and sA159G/V.
Result: In particular, mutations were detected in 67/63
Nearly half of Ultrio plus NAT non-discriminated reactive blood donors were identified as occult HBV infection in South China.
Abstract: Most OBI strains were wild-type HBV, but some substitutions V168A, S174 N, V177A, Q129R/L/H, G145A/R in S region of genotype B (OBIB) and T47K/V/A, P49H/L, Q101R/H/K, S174 N, L175S, V177A, T118 M/R/K, G145R/A/K/E, R160K/N in S region of genotype C (OBIC) strains were identified in high frequency.
Molecular Epidemiology of Hepatitis B Virus in Turkish Cypriot.
PMID: 31880889
2019
Polish journal of microbiology
Table: Q101H
Hepatitis B infection among HIV infected individuals in Gabon: Occult hepatitis B enhances HBV DNA prevalence.
Method: In addition, we looked for Vaccine Escape Mutants (VEMs) and polymorphic mutations outside (Y100C, Q101H, S117N, T118R and P120S) and within the HBsAg immuno-dominant 'a' determinant (I/T126A/N, A128V, Q129H/R, G130N, M133L/T, K141E, S143L, D144A/H/E and G145R).
Analysis of HBV basal core promoter/precore gene variability in patients with HBV drug resistance and HIV co-infection in Northwest Ethiopia.
Result: In addition, other mutations such as Y100D, Q101R/H, M103V/I, D144E and G145S was also found within the major hydrophilic loop (MHL) of the S gene.
Discussion: Several amino acid substitutions within the major hydrophilic loop were observed in our study population which included Y100D, Q101R/H, M103V/I, T125M, A128V, M133L, D144E and G145S.
Epidemiology, risk factors and genotypes of HBV in HIV-infected patients in the northeast region of Colombia: high prevalence of occult hepatitis B and F3 subgenotype dominance.
Result: There were three patients with four amino acid substitutions in the MHR (Q101H; C149R; L158G; G159R).
Table: Q101H
Discussion: Mutations in the MHR (Q101H, C149R, L158G and G159R) were identified in three patients (one of which did not have any hepatitis B serological markers).
Discussion: The mutation G159R has been observed in Iran among HBsAg-positive individuals with genotype D whereas mutation Q101H was found in an OBI patient in India.
Hepatitis B surface antigen variants in voluntary blood donors in Nanjing, China.