ID.63

REPLICASE POLYPROTEIN 1AB (PP1AB)

PDB

The ligand-free form

1uk2_AB [Alignment: 1 2]

The ligand-bound form

2z3c_AA[Alignment: 1 2]

View

Animations of

the structural change


Using Jmol

Function

EC*1

CSA distance*2

3.4.22.-

1.3

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

Ligand

PDB*1

Full name

2xPEPT(VTL),2xECQ

2x(Peptide(VTL)),2x((3S)-3-[(2S)-2-AMINO-3-HYDROXYBUTYL]PYRROLIDIN-2-ONE)

*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-104A,111A-127A,131A-137A,145A-197A,3A-105A,111A-137A,143A-198A)

D2(138A-139A,106A-110A,199A-299A)

Domain

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

1

*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.

Crystal environment

Component No.

Open state*1

Crystal packing*2

1

Free

Coupled

*1 Distinction between the open state and the closed state required for examining the influence of the crystal environment.
*2 Crystal packing: Whether the change in the crystal environment is coupled with the structural change.

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