# CAT, CATCH

NAME
CAT, CATCH - catch the specified macromolecular complex.
SYNOPSIS
CAT identifier
CATCH identifier
DESCRIPTION
Catch the specified structure (macromolecular complex). The structure is a set of atoms read from a single file. Thus, every file is treated as a separate structure. The structure identifier is positive integer. The value zero is not used; structures are numbered 1, 2, 3, etc. When you catch a single structure, all transformations (rotations, translations etc.) are applied to this structure, leaving other structures intact. Selection (commands SELECT, ADD, RESTRICT) are also applied only to this structure. The command CATCH is used when working with more than one structure - for example, when docking an inhibitor to a substrate. When only one structure (file) is loaded, this command has no purpose. Examples:

COMMAND | DESCRIPTION
cat 1 | Catch the structure number 1.
cat 7 | Catch the structure number 7.

NOTES
(1) Sometimes you will forget the identifiers, especially when working with many structures. Move the mouse pointer over the structure you want to catch. The identifier will be displayed in the output window (bottom right corner of the garlic window). The number in parentheses is the identifier you need. In the example below, the identifier is equal to one.
(2) The command CATCH resets the editing mode to default (no editing).
RELATED COMMANDS
TAK (TAKE) does exactly the same job as CATCH. DIS (DISCARD) is used to discard the macromolecular complex (structure). GRO (GROUP) is used to catch more than one structure simultaneously.