Saccharopine dehydrogenase

Source: Wikipedia, the free encyclopedia.
Saccharopine Dehydrogenase
SCOP2
1ff9 / SCOPe / SUPFAM
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary
saccharopine dehydrogenase (putative)
Identifiers
SymbolSCCPDH
Chr. 1 q44
Search for
StructuresSwiss-model
DomainsInterPro

In

eukaryotes and archaea
.

Function

Simplistically, SDH uses

substrate
, Saccharopine, in order to form the products, lysine and alpha-ketoglutarate. This can be described by the following equation:
[1]

SDH

Saccharopine ⇌ lysine + alpha-ketoglutarate

Saccharopine dehydrogenase EC

polypeptide with lysine
ketoglutarate reductase (PF).

Homospermidine synthase proteins (EC). Homospermidine synthase (HSS) catalyses the synthesis of the polyamine homospermidine from 2 mol putrescine in an NAD+-dependent reaction.[3]

Structure

There appears to be two

beta-sheet surrounded by alpha-helices and loops (alpha/beta fold).[4]

Clinical significance

Deficiencies are associated with hyperlysinemia.

References