| HTLV | <virology> Type i: A human, single-stranded RNA retrovirus from the subfamily Oncovirinae which causes adult T-cell leukaemia and T-cell lymphoma and may also be involved in certain demyelinating diseases (diseases where the protective myelin sheath around nerve fibres are destroyed). HTLV-I is closely related to HTLV-II (60% of their genomes are identical). Type II: A human, single-stranded RNA retrovirus from the subfamily Oncovirinae which may cause diseases such as T-cell leukaemia and T-cell lymphoma (but this has not been proven). HTLV-II is closely related to HTLV I (60% of their genomes are identical). Type III: An obsolete term for human immunodeficiency virus (HIV), which causes Acquired Immunity Deficiency Syndrome (AIDS). Acronym: HTLV (09 Oct 1997) |
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| HTLV-1 protease | <enzyme> Has been sequenced Registry number: EC 3.4.23.- Synonym: human t-cell leukaemia virus type 1 protease, pr14, HTLV-1 proteinase (26 Jun 1999) |
| HTLV-blv antibodies | Antibodies reactive with various types of human T-cell leukaemia/lymphoma antigens or bovine leukaemia virus antigens. (12 Dec 1998) |
| HTLV-blv antigens | Antigens associated with the HTLV-blv viruses. Htlv-I antigens and HTLV-II antigens belong to this group. (12 Dec 1998) |
| HTLV-blv infections | Infections caused by the HTLV or blv retroviruses. They include human T-cell leukaemia-lymphoma and adult T-cell leukaemia. (12 Dec 1998) |
| HTLV-blv viruses | Genus of the family retroviridae consisting of exogenous horizontally-transmitted viruses found in a few groups of mammals. Infections caused by these viruses include human b or adult T-cell leukaemia/lymphoma, and bovine leukaemia. (12 Dec 1998) |
| HTLV-I | <virology> A species of HTLV-blv viruses isolated from mature t4 cells in patients with t-lymphoproliferation malignancies. It causes adult T-cell leukaemia (atl), T-cell lymphoma, and is involved in mycosis fungoides, sezary syndrome and tropical spastic paraparesis. (12 Dec 1998) |
| HTLV-I antibodies | Antibodies reactive with the HTLV-I antigens. (12 Dec 1998) |
| HTLV-I antigens | Antigens associated with the HTLV-I virus. (12 Dec 1998) |
| HTLV-II | <virology> A species of HTLV-blv viruses that can transform normal T-lymphocytes and can replicate in both t- and B-cell lines. The virus is related to but distinct from HTLV-I. It is associated with T-cell hairy cell leukaemia, a relatively benign disease. (12 Dec 1998) |
| HTLV-II antibodies | Antibodies reactive with the HTLV-II antigens. (12 Dec 1998) |
| HTLV-II antigens | Antigens associated with the HTLV-II virus. (12 Dec 1998) |
| HTLV-III | <abbreviation> Human T-cell lymphotropic virus type III. See: human immunodeficiency virus. (05 Mar 2000) |