Record Information
Version1.0
StatusDetected and Quantified
Creation Date2020-12-10 18:35:47 UTC
Update Date2024-04-30 19:31:52 UTC
Metabolite IDMMDBc0000344
Metabolite Identification
Common Name5-Hydroxylysine
Description5-Hydroxylysine (Hyl), also known as hydroxylysine or 5-Hydroxy-L-lysine, belongs to the class of organic compounds known as L-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. Amino acids are organic compounds that contain amino (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid. 5-Hydroxylysine is a hydroxylated derivative of the amino acid lysine that is present in certain collagens, the chief structural protein of mammalian skin and connective tissue. 5-Hydroxylysine arises from a post-translational hydroxy modification of lysine and is biosynthesized from lysine via oxidation by lysyl hydroxylase enzymes. 5-Hydroxylysine can then undergo further modification by glycosylation, giving rise to galactosyl hydroxylysine (GH) and glucosylgalactosyl hydroxylysine (GGH). These glycosylated forms of hydroxylysine contribute to collagen’s unusual toughness and resiliency. The monoglycosylated, galactosyl-hydroxylysine is enriched in bone compared with the disaccharide form, glucosyl-galactosyl-hydroxylysine, which is the major form in skin. 5-Hydroxylysine exists in all eukaryotes, ranging from yeast to humans. It was first discovered in 1921 by Donald Van Slyke. Free forms of hydroxylysine arise through proteolytic degradation of collagen. Urinary excretion of 5-Hydroxylysine and its glycosides can be used as an index of collagen degradation, with high levels being indicative of more rapid or extensive collagen degradation (often seen in patients with thermal burns, Paget's disease of bone or hyperphosphatasia) (PMID: 404321 ).
Structure
Synonyms
ValueSource
(2S,5R)-5-HydroxylysineChEBI
(5R)-5-Hydroxy-L-lysineChEBI
alpha,epsilon-Diamino-delta-hydroxycaproic acidChEBI
L-Erythro-5-hydroxylysineChEBI
L-Normal-5-hydroxylysineChEBI
5-Hydroxy-L-lysineKegg
a,epsilon-Diamino-delta-hydroxycaproateGenerator
a,epsilon-Diamino-delta-hydroxycaproic acidGenerator
alpha,epsilon-Diamino-delta-hydroxycaproateGenerator
Α,epsilon-diamino-δ-hydroxycaproateGenerator
Α,epsilon-diamino-δ-hydroxycaproic acidGenerator
Lysine, 5 hydroxyMeSH
2,6-Diamino-5-hydroxyhexanoic acidMeSH
5 HydroxylysineMeSH
HydroxylysineMeSH
(2S,5R)-2,6-Diamino-5-hydroxyhexanoic acidMeSH
2,6 Diamino 5 hydroxyhexanoic acidMeSH
a,epsilon-diamino-δ-hydroxycaproateGenerator, HMDB
a,epsilon-diamino-δ-hydroxycaproic acidGenerator, HMDB
(2S,5R)-2,6-diamino-5-HydroxyhexanoateHMDB
5-Hydroxy-lysineHMDB
D-Hydroxy-L-lysineHMDB
D-HydroxylysineHMDB
delta-DL-HydroxylysineHMDB
delta-Hydroxy-L-lysineHMDB
delta-HydroxylysineHMDB
erythro-5-Hydroxy-L-lysineHMDB
Hydroxy-lysineHMDB
L-D-HydroxylysineHMDB
L-delta-HydroxylysineHMDB
Procollagen 5-hydroxy-L-lysineHMDB
Procollagen L-erythro-5-hydroxy-L-lysineHMDB
5-HYDROXYLYSINEChEBI
Molecular FormulaC6H14N2O3
Average Mass162.187
Monoisotopic Mass162.100442324
IUPAC Name(2S,5R)-2,6-diamino-5-hydroxyhexanoic acid
Traditional NameL-hydroxylysine
CAS Registry NumberNot Available
SMILES
NC[C@H](O)CC[C@H](N)C(O)=O
InChI Identifier
InChI=1S/C6H14N2O3/c7-3-4(9)1-2-5(8)6(10)11/h4-5,9H,1-3,7-8H2,(H,10,11)/t4-,5+/m1/s1
InChI KeyYSMODUONRAFBET-UHNVWZDZSA-N