Frontiers in Medicinal Chemistry

Volume: 6

The Targets of Currently Used Antibacterial Agents: Lessons for Drug Discovery

Author(s): Roland P. Lange, Hans H. Locher, Pierre C. Wyss and Rudolf L. Then

Pp: 62-96 (35)

DOI: 10.2174/9781608054640113060006

* (Excluding Mailing and Handling)

Abstract

Based on the mode of action of antibacterial drugs currently used, targets can be defined as distinct cellular constituents such as enzymes, enzyme substrates, RNA, DNA, and membranes which exhibit very specific binding sites at the surface of these components or at the interface of macromolecular complexes assembled in the cell. Intriguingly, growth inhibition or even complete loss of bacterial viability is often the result of a cascade of events elicited upon treatment with an antibacterial agent. In addition, their mode of action frequently involves more than one single target.

A comprehensive description of the targets exploited so far by commercialized antibacterial agents, including anti-mycobacterial agents, is given. The number of targets exploited so far by commercial antibacterial agents is estimated to be about 40. The most important biosynthetic pathways and cellular structures affected by antibacterial drugs are the cell wall biosynthesis, protein biosynthesis, DNA per se, replication, RNA per se, transcription and the folate biosynthetic pathway.

The disillusionment with the genomics driven antibacterial drug discovery is a result of the restrictive definition of targets as products of essential and conserved genes. Emphasis is made to not only focus on proteins as potential drug targets, but increase efforts and devise screening technologies to discover new agents interacting with different RNA species, DNA, new protein families or macromolecular complexes of these constituents.


Keywords: Antibiotic, antibacterial agents, drug design, drug discovery, drug target, target.

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      • 13. app/Models/UserAccess/UserAccess.php:1266
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      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 51592399 and j.to_ip >=51592399 )) and ((j.from_date <= 1739834426 and j.to_date >= 1739834426 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 4712) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 51592399 and j.to_ip >=51592399 )) and ((j.from_date <= 1739834426 and j.to_date >= 1739834426 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 4712) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 51592399 and j.to_ip >=51592399 )) and ((j.from_date <= 1739834426 and j.to_date >= 1739834426 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 4712)
      740μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1549
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` where `b`.`banner_ebook` = 1 and `bd`.`content_type` = 'B' and `bd`.`content_id` = 1146 and `b`.`banner_from_date` <= 1739834426 and `b`.`banner_to_date` >= 1739834426 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.45msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: B
      • 2: 1146
      • 3: 1739834426
      • 4: 1739834426
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='323f06ae4c826419245280cdc005b3f4'
      250μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\Keywords
    6Keywords.php#?
    App\Models\Chapter
    1Chapter.php#?
    App\Models\Ebook
    1Ebook.php#?
        _token
        kO5Yr0eFNi6M8uSpezCo3OtEWmt5iwqsowFy5xeJ
        uc_cart_id
        323f06ae4c826419245280cdc005b3f4
        _previous
        array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/4712" ]
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /chapter/4712
        status_code
        200
        
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        
        request_request
        []
        
        request_headers
        0 of 0
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        request_cookies
        0 of 0
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        response_headers
        0 of 0
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        session_attributes
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        array:5 [ "_token" => "kO5Yr0eFNi6M8uSpezCo3OtEWmt5iwqsowFy5xeJ" "uc_cart_id" => "323f06ae4c826419245280cdc005b3f4" "_previous" => array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/4712" ] "_flash" => array:2 [ "old" => [] "new" => [] ] "PHPDEBUGBAR_STACK_DATA" => [] ]
        ClearShow all
        Date ↕MethodURLData
        #12025-02-17 23:20:26GET/chapter/4712112198