Rhea - reaction knowledgebase

Enzymes

UniProtKB ^help_outline	9 proteins
Enzyme class ^help_outline	EC 1.2.1.54 gamma-guanidinobutyraldehyde dehydrogenase
GO Molecular Function ^help_outline	GO:0047107 gamma-guanidinobutyraldehyde dehydrogenase activity

Reaction participants Show >> << Hide

Name ^help_outline 4-guanidinobutanal Identifier CHEBI:57854 Charge 1 Formula C5H12N3O InChIKey^help_outline VCOFTLCIPLEZKE-UHFFFAOYSA-O SMILES^help_outline [H]C(=O)CCCNC(N)=[NH2+] 2D coordinates Mol file for the small molecule Search links Involved in 3 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Name ^help_outline H₂O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) ^help_outline Charge 0 Formula H2O InChIKey^help_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILES^help_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,048 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Name ^help_outline NAD⁺ Identifier CHEBI:57540 (Beilstein: 3868403) ^help_outline Charge -1 Formula C21H26N7O14P2 InChIKey^help_outline BAWFJGJZGIEFAR-NNYOXOHSSA-M SMILES^help_outline NC(=O)c1ccc[n+](c1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,142 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Name ^help_outline 4-guanidinobutanoate Identifier CHEBI:57486 Charge 0 Formula C5H11N3O2 InChIKey^help_outline TUHVEAJXIMEOSA-UHFFFAOYSA-N SMILES^help_outline NC(=[NH2+])NCCCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 4 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Name ^help_outline H⁺ Identifier CHEBI:15378 Charge 1 Formula H InChIKey^help_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILES^help_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,176 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Name ^help_outline NADH Identifier CHEBI:57945 (Beilstein: 3869564) ^help_outline Charge -2 Formula C21H27N7O14P2 InChIKey^help_outline BOPGDPNILDQYTO-NNYOXOHSSA-L SMILES^help_outline NC(=O)C1=CN(C=CC1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,073 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule

Cross-references

	RHEA:14381	RHEA:14382	RHEA:14383	RHEA:14384
Reaction direction	undefined	left-to-right	right-to-left	bidirectional
UniProtKB ^help_outline	9 proteins	9 proteins
EC numbers ^help_outline	1.2.1.54
Gene Ontology ^help_outline	GO:0047107
KEGG ^help_outline				R03177
MetaCyc ^help_outline		1.2.1.54-RXN

Related reactions ^help_outline

More general form(s) of this reaction

RHEA:16185
an aldehyde + H₂O + NAD⁺ = a carboxylate + 2 H⁺ + NADH

Publications

Kinetic and structural analysis of human ALDH9A1.

Koncitikova R., Vigouroux A., Kopecna M., Sebela M., Morera S., Kopecny D.

Aldehyde dehydrogenases (ALDHs) constitute a superfamily of NAD(P)+-dependent enzymes, which detoxify aldehydes produced in various metabolic pathways to the corresponding carboxylic acids. Among the 19 human ALDHs, the cytosolic ALDH9A1 has so far never been fully enzymatically charact ... >> More

Aldehyde dehydrogenases (ALDHs) constitute a superfamily of NAD(P)+-dependent enzymes, which detoxify aldehydes produced in various metabolic pathways to the corresponding carboxylic acids. Among the 19 human ALDHs, the cytosolic ALDH9A1 has so far never been fully enzymatically characterized and its structure is still unknown. Here, we report complete molecular and kinetic properties of human ALDH9A1 as well as three crystal forms at 2.3, 2.9, and 2.5 Å resolution. We show that ALDH9A1 exhibits wide substrate specificity to aminoaldehydes, aliphatic and aromatic aldehydes with a clear preference for γ-trimethylaminobutyraldehyde (TMABAL). The structure of ALDH9A1 reveals that the enzyme assembles as a tetramer. Each ALDH monomer displays a typical ALDHs fold composed of an oligomerization domain, a coenzyme domain, a catalytic domain, and an inter-domain linker highly conserved in amino-acid sequence and folding. Nonetheless, structural comparison reveals a position and a fold of the inter-domain linker of ALDH9A1 never observed in any other ALDH so far. This unique difference is not compatible with the presence of a bound substrate and a large conformational rearrangement of the linker up to 30 Å has to occur to allow the access of the substrate channel. Moreover, the αβE region consisting of an α-helix and a β-strand of the coenzyme domain at the dimer interface are disordered, likely due to the loss of interactions with the inter-domain linker, which leads to incomplete β-nicotinamide adenine dinucleotide (NAD+) binding pocket. << Less

Biosci. Rep. 0:0-0(2019) [PubMed] [EuropePMC]

This publication is cited by 4 other entries.

Comments

Published in: Yorifuji, T., Koike, K., Sakurai, T. and Yokoyama, K. 4-Aminobutyraldehyde and 4-guanidinobutyraldehyde dehydrogenases for arginine degradation in Pseudomonas putida. Agric. Biol. Chem. 50 (1986) 2009–2016.