CD.49

PHOSPHORIBOSYLAMINOIMIDAZOLE-SUCCINOCARBOXAMIDE SYNTHASE

PDB

The ligand-free form

1a48_A [Alignment: 1]

The ligand-bound form

2cnq_A[Alignment: 1]

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the linear response theory


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Function

EC*1

CSA distance*2

6.3.2.6

*1 Enzyme commission number.
*2 The distance between the active site annotated in CSA23 and the ligand-binding sites.

Ligand

PDB*1

Full name

2xADP,2xAMZ,2xSIN

2x(ADENOSINE-5'-DIPHOSPHATE),2x(AICAR),2x(SUCCINIC ACID)

*1 Ligand name designated by the PDB identifiers.

Segments

Component No.

Fixed*1

Moving*1

Motion type

Ligand binding

Coupled motion type

1

D1(4A-38A,48A-163A,171A-259A,281A-303A)

D2(39A-47A,260A-280A)

Domain

Coupled

Closure

*1 The location of the fixed and moving segments indicated by the residue number assigned in the ligand-bound form. The background color of characters indicates the corresponding segment in the structure. The colored segments not described in the Table are: 1) a part of component in which the motion is small (< 1.0 A), or, 2) a part of a protomer of homodimers, for which a corresponding part of the other protomer is shown in the Table.

Displacement and disorder

Component No.

RMSD*1

Displacement*2

Disorder-order transition*3

Disorder residue*4

Helix-Coil*5

1

1.6

*1 The root-mean-square displacement of a component of motion calculated for the domain motions.
*2 The mean displacement of a component of motion calculated for the local motions.
*3 Order-disorder transition: Whether the open form contains the disordered structure.
*4 The number of disordered residues.
*5 The number of residues exhibiting the alpha-helix to coil transition.

Linear response

Component No.

Correlation coefficient*1

1

0.84

*1 The correlation coefficient between the displacement vector predicted by the linear response theory and the one observed in the crystal structures.

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