Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia

A molecular epidemiological investigation was conducted among various risk populations (n = 184) in Kuala Lumpur, Malaysia, in 2003 to 2005, on the basis of nucleotide sequences of protease and reverse transcriptase regions. In addition to circulating HIV-1 strains, including CRF01AE (57.1), subtype...

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Main Authors: Tee, K.K., Li, X.J., Nohtomi, K., Ng, K.P., Kamarulzaman, Adeeba, Takebe, Y.
Format: Article
Published: Lippincott, Williams & Wilkins 2006
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Online Access:http://eprints.um.edu.my/4588/
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spelling my.um.eprints.45882019-03-21T04:35:31Z http://eprints.um.edu.my/4588/ Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia Tee, K.K. Li, X.J. Nohtomi, K. Ng, K.P. Kamarulzaman, Adeeba Takebe, Y. R Medicine A molecular epidemiological investigation was conducted among various risk populations (n = 184) in Kuala Lumpur, Malaysia, in 2003 to 2005, on the basis of nucleotide sequences of protease and reverse transcriptase regions. In addition to circulating HIV-1 strains, including CRF01AE (57.1), subtype B (20.1), and subtype C (0.5), we detected a candidate with a new circulating recombinant form (CRF). We determined four near-full-length nucleotide sequences with identical subtype structure from epidemiologically unlinked individuals of different risk and ethnic groups. In this chimera, two short subtype B segments were inserted into the gag-RT region in a backbone of CRF01AE. The recombinant structure was distinct from previously identified CRF1501B in Thailand. In agreement with the current HIV nomenclature system, this constitutes a novel CRF (CRF3301B). The overall prevalence of CRF3301B is 19.0 (35/184). Although the prevalence of CRF3301B is particularly high among injecting drug users (42.0, 21/50), it is also detected in a substantial proportion of homo-/bisexual males (18.8, 3/16) and heterosexuals (9.8, 9/92). Moreover, unique recombinant forms composed of CRF01AE and subtype B that have a significant structural relationship with CRF3301B were detected in 1.6 (3/184) of study subjects, suggesting an ongoing recombination process in Malaysia. This new CRF seems to be bridging viral transmission between different risk populations in this country. Lippincott, Williams & Wilkins 2006 Article PeerReviewed Tee, K.K. and Li, X.J. and Nohtomi, K. and Ng, K.P. and Kamarulzaman, Adeeba and Takebe, Y. (2006) Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia. Journal of Acquired Immune Deficiency Syndromes, 43 (5). pp. 523-529. ISSN 1525-4135
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic R Medicine
spellingShingle R Medicine
Tee, K.K.
Li, X.J.
Nohtomi, K.
Ng, K.P.
Kamarulzaman, Adeeba
Takebe, Y.
Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia
description A molecular epidemiological investigation was conducted among various risk populations (n = 184) in Kuala Lumpur, Malaysia, in 2003 to 2005, on the basis of nucleotide sequences of protease and reverse transcriptase regions. In addition to circulating HIV-1 strains, including CRF01AE (57.1), subtype B (20.1), and subtype C (0.5), we detected a candidate with a new circulating recombinant form (CRF). We determined four near-full-length nucleotide sequences with identical subtype structure from epidemiologically unlinked individuals of different risk and ethnic groups. In this chimera, two short subtype B segments were inserted into the gag-RT region in a backbone of CRF01AE. The recombinant structure was distinct from previously identified CRF1501B in Thailand. In agreement with the current HIV nomenclature system, this constitutes a novel CRF (CRF3301B). The overall prevalence of CRF3301B is 19.0 (35/184). Although the prevalence of CRF3301B is particularly high among injecting drug users (42.0, 21/50), it is also detected in a substantial proportion of homo-/bisexual males (18.8, 3/16) and heterosexuals (9.8, 9/92). Moreover, unique recombinant forms composed of CRF01AE and subtype B that have a significant structural relationship with CRF3301B were detected in 1.6 (3/184) of study subjects, suggesting an ongoing recombination process in Malaysia. This new CRF seems to be bridging viral transmission between different risk populations in this country.
format Article
author Tee, K.K.
Li, X.J.
Nohtomi, K.
Ng, K.P.
Kamarulzaman, Adeeba
Takebe, Y.
author_facet Tee, K.K.
Li, X.J.
Nohtomi, K.
Ng, K.P.
Kamarulzaman, Adeeba
Takebe, Y.
author_sort Tee, K.K.
title Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia
title_short Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia
title_full Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia
title_fullStr Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia
title_full_unstemmed Identification of a novel circulating recombinant form (CRF3301B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia
title_sort identification of a novel circulating recombinant form (crf3301b) disseminating widely among various risk populations in kuala lumpur, malaysia
publisher Lippincott, Williams & Wilkins
publishDate 2006
url http://eprints.um.edu.my/4588/
_version_ 1643687368969945088
score 13.211869