1AWB

HUMAN MYO-INOSITOL MONOPHOSPHATASE IN COMPLEX WITH D-INOSITOL-1-PHOSPHATE AND CALCIUM

PDB DOI: https://doi.org/10.2210/pdb1AWB/pdb

Classification: HYDROLASE
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 1997-10-01 Released: 1998-01-14
Deposition Author(s): Rondeau, J.-M., Pelton, P.D., Vincendon, P., Ganzhorn, A.J.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.50 Å
R-Value Free:
0.189 (Depositor), 0.150 (DCC)
R-Value Work:
0.153 (Depositor), 0.150 (DCC)
R-Value Observed:
0.153 (Depositor)

Starting Model: experimental
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Ligand Structure Quality Assessment

This is version 1.5 of the entry. See complete history.

Literature

Structure of an Enzyme-Substrate Complex and the Catalytic Mechanism of Human Brain Myo-Inositol Monophosphatase

Ganzhorn, A.J., Rondeau, J.-M.

(1997) Protein Eng 10: 61

Macromolecule Content

Total Structure Weight: 61 kDa
Atom Count: 4,506
Modelled Residue Count: 544
Deposited Residue Count: 552
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MYO-INOSITOL MONOPHOSPHATASE	A, B	276	Homo sapiens	Mutation(s): 0 Gene Names: IMPA EC: 3.1.3.25 (PDB Primary Data), 3.1.3.94 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P29218 (Homo sapiens) Explore P29218 Go to UniProtKB: P29218
PHAROS: P29218 GTEx: ENSG00000133731
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P29218
Sequence Annotations Expand
Reference Sequence LOADING

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
IPD Query on IPD Download Ideal Coordinates CCD File SDF format, chain G [auth A] SDF format, chain L [auth B] MOL2 format, chain G [auth A] MOL2 format, chain L [auth B] mmCIF format, chain G [auth A] mmCIF format, chain L [auth B]	G [auth A], L [auth B]	D-MYO-INOSITOL-1-PHOSPHATE C₆ H₁₁ O₉ P INAPMGSXUVUWAF-UOTPTPDRSA-L		Interactions Focus chain G [auth A] Focus chain L [auth B] Interactions & Density Focus chain G [auth A] Focus chain L [auth B]
CA Query on CA Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain H [auth B] SDF format, chain I [auth B] SDF format, chain J [auth B] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain H [auth B] MOL2 format, chain I [auth B] MOL2 format, chain J [auth B] mmCIF format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain H [auth B] mmCIF format, chain I [auth B] mmCIF format, chain J [auth B]	C [auth A] D [auth A] E [auth A] H [auth B] I [auth B] C [auth A], D [auth A], E [auth A], H [auth B], I [auth B], J [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain H [auth B] Focus chain I [auth B] Focus chain J [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain H [auth B] Focus chain I [auth B] Focus chain J [auth B]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain K [auth B] MOL2 format, chain F [auth A] MOL2 format, chain K [auth B] mmCIF format, chain F [auth A] mmCIF format, chain K [auth B]	F [auth A], K [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain F [auth A] Focus chain K [auth B] Interactions & Density Focus chain F [auth A] Focus chain K [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.50 Å
R-Value Free: 0.189 (Depositor), 0.150 (DCC)
R-Value Work: 0.153 (Depositor), 0.150 (DCC)
R-Value Observed: 0.153 (Depositor)

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 86.37	α = 90
b = 86.37	β = 90
c = 153.795	γ = 120

Software Package:

Software Name	Purpose
XDS	data scaling
XSCALE	data scaling
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
X-PLOR	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 1998-01-14

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 1998-01-14
Type: Initial release
Version 1.1: 2008-03-03
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 1.3: 2018-04-04
Changes: Data collection
Version 1.4: 2023-08-02
Changes: Database references, Derived calculations, Refinement description
Version 1.5: 2024-11-06
Changes: Data collection, Structure summary