CD.12

INOSINE TRIPHOSPHATE PYROPHOSPHATASE

PDB

The ligand-free form

2car_AB [Alignment: 1 2]

The ligand-bound form

2j4e_AB[Alignment: 1 2]

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the structural change


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An image of the result of

the linear response theory


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Function

EC*1

CSA distance*2

3.6.1.19

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

Ligand

PDB*1

Full name

2xITT

2x(INOSINE TRIPHOSPHATE)

*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-122A,128A-189A,46B-47B,73B-115B,134B-179B)

D2(190A-190A,1B-45B,48B-72B,116B-133B,180B-191B)

Domain

Coupled

Closure

2

D1

L3(15A-21A)

Local

Coupled

Closure

3

D1

L4(123A-127A)

Local

Independent

*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

2.4

2

6

3

Yes

-5

*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

0.89

2

0.93

3

*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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