Function and Biology

Crystal Structure of Human Aldehyde Dehydrogenase, ALDH1a2

Source organism: Homo sapiens
Biochemical function: retinal binding
Biological process: regulation of vascular endothelial cell proliferation
Cellular component: perinuclear region of cytoplasm

EC 1.2.1.36: Retinal dehydrogenase

Reaction catalysed:
Retinal + NAD(+) + H(2)O = retinoate + NADH
Systematic name:
Retinal:NAD(+) oxidoreductase
Alternative Name(s):
  • Cytosolic retinal dehydrogenase

GO terms

Biochemical function:
Biological process:
Cellular component:

Sequence family

Pfam Protein family (Pfam)
PF00171
Domain description: Aldehyde dehydrogenase family
Occurring in:
  1. Retinal dehydrogenase 2
The deposited structure of PDB entry 4x2q contains 4 copies of Pfam domain PF00171 (Aldehyde dehydrogenase family) in Retinal dehydrogenase 2. Showing 1 copy in chain C.

InterPro InterPro annotations
IPR016160
Domain description: Aldehyde dehydrogenase, cysteine active site
Occurring in:
  1. Retinal dehydrogenase 2
IPR016163
Domain description: Aldehyde dehydrogenase, C-terminal
Occurring in:
  1. Retinal dehydrogenase 2
IPR029510
Domain description: Aldehyde dehydrogenase, glutamic acid active site
Occurring in:
  1. Retinal dehydrogenase 2
IPR016162
Domain description: Aldehyde dehydrogenase, N-terminal
Occurring in:
  1. Retinal dehydrogenase 2
IPR015590
Domain description: Aldehyde dehydrogenase domain
Occurring in:
  1. Retinal dehydrogenase 2
IPR016161
Domain description: Aldehyde/histidinol dehydrogenase
Occurring in:
  1. Retinal dehydrogenase 2

Structure domains

CATH CATH domains
3.40.309.10
Class: Alpha Beta
Architecture: 3-Layer(aba) Sandwich
Topology: Aldehyde Dehydrogenase; Chain A, domain 2
Homology: Aldehyde Dehydrogenase; Chain A, domain 2
Occurring in:
  1. Retinal dehydrogenase 2
The deposited structure of PDB entry 4x2q contains 4 copies of CATH domain 3.40.309.10 (Aldehyde Dehydrogenase; Chain A, domain 2) in Retinal dehydrogenase 2. Showing 1 copy in chain C.
3.40.605.10
Class: Alpha Beta
Architecture: 3-Layer(aba) Sandwich
Topology: Aldehyde Dehydrogenase; Chain A, domain 1
Homology: Aldehyde Dehydrogenase; Chain A, domain 1
Occurring in:
  1. Retinal dehydrogenase 2
The deposited structure of PDB entry 4x2q contains 4 copies of CATH domain 3.40.605.10 (Aldehyde Dehydrogenase; Chain A, domain 1) in Retinal dehydrogenase 2. Showing 1 copy in chain C.