2IY6

1-PYRROLINE-5-CARBOXYLATE DEHYDROGENASE FROM THERMUS WITH BOUND CITRATE

PDB DOI: https://doi.org/10.2210/pdb2IY6/pdb

Classification: OXIDOREDUCTASE
Organism(s): Thermus thermophilus HB8
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2006-07-13 Released: 2006-07-24
Deposition Author(s): Inagaki, E., Sakamoto, K., Nishio, M., Yokoyama, S.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.80 Å
R-Value Free: 0.170
R-Value Work: 0.139
R-Value Observed: 0.140

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.4 of the entry. See complete history.

Literature

Crystal Structure of Thermus Thermophilus Delta(1)- Pyrroline-5-Carboxylate Dehydrogenase.

Inagaki, E., Ohshima, N., Takahashi, H., Kuroishi, C., Yokoyama, S., Tahirov, T.H.

(2006) J Mol Biol 362: 490

PubMed: 16934832 Search on PubMed
DOI: https://doi.org/10.1016/j.jmb.2006.07.048
Primary Citation of Related Structures:
1UZB, 2BHP, 2BHQ, 2BJA, 2BJK, 2IY6

PubMed Abstract:
Delta(1)-pyrroline-5-carboxylate dehydrogenase (P5CDh) plays an important role in the metabolic pathway from proline to glutamate. It irreversibly catalyzes the oxidation of glutamate-gamma-semialdehyde, the product of the non-enzymatic hydrolysis of Delta(1)-pyrroline-5-carboxylate, into glutamate with the reduction of NAD(+) into NADH. We have confirmed the P5CDh activity of the Thermus thermophilus protein TT0033 (TtP5CDh), and determined the crystal structure of the enzyme in the ligand-free form at 1.4 A resolution. To investigate the structural basis of TtP5CDh function, the TtP5CDh structures with NAD(+), with NADH, and with its product glutamate were determined at 1.8 A, 1.9 A, and 1.4 A resolution, respectively. The solved structures suggest an overall view of the P5CDh catalytic mechanism and provide insights into the P5CDh deficiencies in the case of the human type II hyperprolinemia.

Organizational Affiliation

RIKEN SPring-8 Center, Harima Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan.

Macromolecule Content

Total Structure Weight: 116.26 kDa
Atom Count: 9,428
Modelled Residue Count: 1,032
Deposited Residue Count: 1,032
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
1-PYRROLINE-5-CARBOXYLATE DEHYDROGENASE	A, B	516	Thermus thermophilus HB8	Mutation(s): 0 EC: 1.5.1.12 (PDB Primary Data), 1.2.1.88 (UniProt)
UniProt
Find proteins for Q5SI02 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore Q5SI02 Go to UniProtKB: Q5SI02
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q5SI02
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
FLC Query on FLC Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain K [auth B] MOL2 format, chain C [auth A] MOL2 format, chain K [auth B] mmCIF format, chain C [auth A] mmCIF format, chain K [auth B]	C [auth A], K [auth B]	CITRATE ANION C₆ H₅ O₇ KRKNYBCHXYNGOX-UHFFFAOYSA-K		Interactions Focus chain C [auth A] Focus chain K [auth B] Interactions & Density Focus chain C [auth A] Focus chain K [auth B]
MRD Query on MRD Download Ideal Coordinates CCD File SDF format, chain Q [auth B] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain P [auth B] SDF format, chain S [auth B] MOL2 format, chain Q [auth B] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain P [auth B] MOL2 format, chain S [auth B] mmCIF format, chain Q [auth B] mmCIF format, chain F [auth A] mmCIF format, chain G [auth A] mmCIF format, chain P [auth B] mmCIF format, chain S [auth B]	F [auth A], G [auth A], P [auth B], Q [auth B], S [auth B]	(4R)-2-METHYLPENTANE-2,4-DIOL C₆ H₁₄ O₂ SVTBMSDMJJWYQN-RXMQYKEDSA-N		Interactions Focus chain F [auth A] Focus chain G [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain S [auth B] Interactions & Density Focus chain F [auth A] Focus chain G [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain S [auth B]
MPD Query on MPD Download Ideal Coordinates CCD File SDF format, chain N [auth B] SDF format, chain O [auth B] SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain H [auth A] SDF format, chain L [auth B] SDF format, chain M [auth B] SDF format, chain R [auth B] MOL2 format, chain N [auth B] MOL2 format, chain O [auth B] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain H [auth A] MOL2 format, chain L [auth B] MOL2 format, chain M [auth B] MOL2 format, chain R [auth B] mmCIF format, chain N [auth B] mmCIF format, chain O [auth B] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain H [auth A] mmCIF format, chain L [auth B] mmCIF format, chain M [auth B] mmCIF format, chain R [auth B]	D [auth A] E [auth A] H [auth A] L [auth B] M [auth B] D [auth A], E [auth A], H [auth A], L [auth B], M [auth B], N [auth B], O [auth B], R [auth B]	(4S)-2-METHYL-2,4-PENTANEDIOL C₆ H₁₄ O₂ SVTBMSDMJJWYQN-YFKPBYRVSA-N		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain H [auth A] Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth B] Focus chain R [auth B] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain H [auth A] Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth B] Focus chain R [auth B]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain J [auth A] SDF format, chain U [auth B] MOL2 format, chain J [auth A] MOL2 format, chain U [auth B] mmCIF format, chain J [auth A] mmCIF format, chain U [auth B]	J [auth A], U [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain J [auth A] Focus chain U [auth B] Interactions & Density Focus chain J [auth A] Focus chain U [auth B]
NA Query on NA Download Ideal Coordinates CCD File SDF format, chain T [auth B] SDF format, chain I [auth A] MOL2 format, chain T [auth B] MOL2 format, chain I [auth A] mmCIF format, chain T [auth B] mmCIF format, chain I [auth A]	I [auth A], T [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain I [auth A] Focus chain T [auth B] Interactions & Density Focus chain I [auth A] Focus chain T [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.80 Å
R-Value Free: 0.170
R-Value Work: 0.139
R-Value Observed: 0.140
Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 102.047	α = 90
b = 102.047	β = 90
c = 278.901	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

Structure Validation

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Entry History

Deposition Data

Released Date: 2006-07-24

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2006-07-24
Type: Initial release
Version 1.1: 2011-05-08
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 1.3: 2019-08-21
Changes: Data collection, Database references
Version 1.4: 2023-12-13
Changes: Data collection, Database references, Derived calculations, Other, Refinement description

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Help and Resources

2IY6

1-PYRROLINE-5-CARBOXYLATE DEHYDROGENASE FROM THERMUS WITH BOUND CITRATE

Crystal Structure of Thermus Thermophilus Delta(1)- Pyrroline-5-Carboxylate Dehydrogenase.

Entity ID: 1

UniProt

Entity Groups

Sequence Annotations

Expand

Experimental Data

Structure Validation

Deposition Data

Revision History (Full details and data files)