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H7890

Sigma-Aldrich

L-Homoserine lactone hydrochloride

suitable for ligand binding assays

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About This Item

Empirical Formula (Hill Notation):
C4H7NO2 · HCl
CAS Number:
Molecular Weight:
137.56
MDL number:
UNSPSC Code:
12352209
PubChem Substance ID:
NACRES:
NA.26

product name

L-Homoserine lactone hydrochloride,

form

powder

technique(s)

ligand binding assay: suitable

color

white

storage temp.

−20°C

SMILES string

Cl.N[C@H]1CCOC1=O

InChI

1S/C4H7NO2.ClH/c5-3-1-2-7-4(3)6;/h3H,1-2,5H2;1H/t3-;/m0./s1

InChI key

XBKCXPRYTLOQKS-DFWYDOINSA-N

General description

L-Homoserine lactone (HSL), also called acyl-HSL, comprises a homoserine lactone ring and a fatty acyl side. The levels of acyl-HSL in bacteria is dictated by the availability of the substrates and acyl-homoserine lactones synthase.

Application

L-Homoserine lactone hydrochloride has been used as an inhibitor for arterial smooth muscle contraction.

Biochem/physiol Actions

L-Homoserine lactone inhibition reduces virulence factors and halts inflammation and tissue damage. In Pseudomonas aeruginosa it controls virulence factor production and biofilm formation. In Agrobacterium tumefaciens, it is essential for conjugal transfer.
Acylated L-Homoserine lactone(s) are used to study bacterial quorum-sensing signaling mechanisms.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Long-chain acyl-homoserine lactone quorum-sensing regulation of Rhodobacter capsulatus gene transfer agent production
Schaefer AL, et al.
Journal of Bacteriology, 184(23), 6515-6521 (2002)
The Pseudomonas aeruginosa quorum-sensing signal molecule, N-(3-oxododecanoyl)-l-homoserine lactone, inhibits porcine arterial smooth muscle contraction
Lawrence RN, et al.
British Journal of Pharmacology, 128(4), 845-848 (1999)
Defining the structure and function of acyl-homoserine lactone autoinducers
Churchill MEA, et al.
Methods in Molecular Biology, 692(23), 159-171 (2011)
Inhibiting N-acyl-homoserine lactone synthesis and quenching Pseudomonas quinolone quorum sensing to attenuate virulence
Chan KG, et al.
Frontiers in Microbiology, 6, 1173-1173 (2015)
Nathan A Ahlgren et al.
Proceedings of the National Academy of Sciences of the United States of America, 108(17), 7183-7188 (2011-04-08)
Many Proteobacteria possess LuxI-LuxR-type quorum-sensing systems that produce and detect fatty acyl-homoserine lactone (HSL) signals. The photoheterotroph Rhodopseudomonas palustris is unusual in that it produces and detects an aryl-HSL, p-coumaroyl-HSL, and signal production requires an exogenous source of p-coumarate. A

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