Result: The point-mutations on the S gene that owned the rates of >30% of the population were: S53L (37.7%), A184V/G (39.3%), and S210K/N/R/S (39.3%); from 15 to <30% were L21S (29.1%), G44E/V (18.6%), I126T/N/S (21.1%), and M198I/M (18.2%); and from 5 to <15% were V14A/G/Q (10.1%), N40S/K (6.9%), T47A/E/V/K (9.3%), P/L49R/H (5.7%), P62Q/L (9.7%), C76Y/T/W (10.5%), Y100C/F
Case of hepatitis B virus reactivation after ibrutinib therapy in which the patient remained negative for hepatitis B surface antigens throughout the clinical course.
Abstract: Interestingly, the patient remained negative for HBsAg throughout the clinical course owing to triple HBsAg escape mutations: Q101K, M133L, and G145A.
Molecular characteristics of HBV infection among blood donors tested HBsAg reactive in a single ELISA test in southern China.
8Discussion: Mutations in the MHR and non-MHR in the S region, such as Y100C, Y103I, Q129H,
Result: Several mutations associated with the interference of HBsAg detection, such as mutations in the major hydrophilic region (MHR), including Q129H, T131I, M133L/S/T, F134L, T143M, and G145R, and mutations outside the MHR, including Y100C, L175S, and Y103I, were found in S genes among HBV-infected blood donors.
Global prevalence and phylogeny of hepatitis B virus (HBV) drug and vaccine resistance mutations.
Result: M133I/L/T and Q129H/N/R had the highest prevalence in genotype B and M133I/L/T had the highest prevalence in Asia, also being present in >3% of the sequences (Figure 2B and 2C).
Result: Other VEMs that had an overall prevalence of >1% were T118A/R/V, M133I/L/T, A128V, Q129H/N/R, G145A/R, P120S/T and S/T143L/M (Figure 2A).
Introduction: In the following years, other mutations observed on the a-determinant, which are considered as immune escape variants, including T116N, P120S/E, I/T126A/N/I/S, Q129H/R, M133L, K141E, P142S, and D144A/E, have also been reported.
Characterization of Antigen Escape Mutations in Chronic HBV-Infected Patients in Upper Egypt.
8Discussion: Several other studies reported other substitutions in the ""a"" determinant region and associated with vaccine escape, such as T116N, P120S/E, I/T126A/N/I/S, Q129H/R, M133L, K141E, and D144A/E."
Spontaneous reactivation of hepatitis B virus with S gene mutations in an elderly patient with diabetic nephropathy.
PMID: 32519312
2020
Clinical journal of gastroenterology
1Abstract: Full-genome HBV sequence analysis revealed that the patient was infected with HBV of subgenotype B1 and it had an ""a"" determinant mutation M133L in the S gene coding HBsAg."
In silico functional and structural characterization of hepatitis B virus PreS/S-gene in Iranian patients infected with chronic hepatitis B virus genotype D.
Introduction: Also, mutations may occur in association with either vaccine-induced immune-escape (P120T, K122R, T126S, Q129H, G130N, M133L, and M133T) or in relation to the patients with occult HBV infection (Y100C, C124R, C124Y, K141E, and D144A).
"Occult Hepatitis B Virus Infection in Maintenance Hemodialysis Patients: Prevalence and Mutations in ""a"" Determinant."
PMID: 32922195
2020
International journal of medical sciences
8Discussion: According to the reports, the ""a"" determinant of OBI patients contains Gly145Arg/Ala/Ile/Trp/Glu (G145R/A/I/W/E), Leu109Arg (L109R), Gly119Arg (G119R), Pro120Thr (P120T), Lys122Ile (K122I), Thr126Asn (T126N), Thr127Arg (T127R), Gln129Asn (Q129N), Thr131Asn (T131N
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
HBV mutation literature information.
PMID: 
2022
PloS one
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