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L8402

Sigma-Aldrich

Lysozyme from human neutrophils

≥95% (SDS-PAGE), lyophilized powder, ≥100,000 units/mg protein (E1%/280)

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Synonym(s):
Mucopeptide N-acetylmuramoylhydrolase, Muramidase
CAS Number:
9001-63-2
Enzyme Commission number:
3.2.1.17 (BRENDA, IUBMB)
MDL number:
MFCD00131557
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

human neutrophils

Quality Level

200

recombinant

expressed in E. coli

Assay

≥95% (SDS-PAGE)

form

lyophilized powder

specific activity

≥100,000 units/mg protein (E1%/280)

technique(s)

cell based assay: suitable

suitability

suitable for cell lysis

UniProt accession no.

P61626

application(s)

cell analysis

storage temp.

−20°C

InChI

1S/C99H159N37O23/c1-11-50(8)77(132-72(139)46-120-81(145)63(32-33-70(101)137)124-88(152)69-31-21-39-136(69)93(157)68(43-73(140)141)131-84(148)62(29-19-37-116-98(109)110)125-90(154)75(48(4)5)135-91(155)76(49(6)7)133-80(144)57(100)24-16-34-113-95(103)104)92(156)126-60(27-17-35-114-96(105)106)82(146)121-51(9)78(142)129-66(41-54-45-119-59-26-15-13-23-56(54)59)87(151)134-74(47(2)3)89(153)122-52(10)79(143)128-65(40-53-44-118-58-25-14-12-22-55(53)58)85(149)123-61(28-18-36-115-97(107)108)83(147)130-67(42-71(102)138)86(150)127-64(94(158)159)30-20-38-117-99(111)112/h12-15,22-23,25-26,44-45,47-52,57,60-69,74-77,118-119H,11,16-21,24,27-43,46,100H2,1-10H3,(H2,101,137)(H2,102,138)(H,120,145)(H,121,146)(H,122,153)(H,123,149)(H,124,152)(H,125,154)(H,126,156)(H,127,150)(H,128,143)(H,129,142)(H,130,147)(H,131,148)(H,132,139)(H,133,144)(H,134,151)(H,135,155)(H,140,141)(H,158,159)(H4,103,104,113)(H4,105,106,114)(H4,107,108,115)(H4,109,110,116)(H4,111,112,117)/t50-,51-,52-,57-,60-,61-,62-,63-,64-,65-,66-,67-,68-,69-,74-,75-,76-,77-/m0/s1

InChI key

ZJCXKXFAOCLSRV-RYLVIXIQSA-N

Gene Information

human ... LYZ(4069)

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General description

Lysozyme is abundantly found in animal and plant kingdoms. It is a natural food preservative and also found to be present in specific bacterial cell walls. Lysozyme is usually present in tears, milk, urine and saliva.

Application

Lysozyme from human neutrophils has been used in the checkerboard method for establishing a synergy between peptidomimetic 1 and immune effector molecules against E. coli.

Biochem/physiol Actions

Lysozymes participates in the defense mechanism. It has the ability to stimulate catalysis by bringing steric stress in the substrates.

Unit Definition

One unit will produce a ΔA450 of 0.001 per min at pH 6.24 at 25°C, using a suspension of Micrococcus lysodeikticus as substrate, in a 2.6 mL reaction mixture (1 cm light path).

Physical form

Lyophilized from 50 mM sodium acetate, pH 6.0, with 100 mM NaCl

Other Notes

View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

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María Victoria Humbert et al.
PLoS pathogens, 13(6), e1006448-e1006448 (2017-07-01)
Pathogenic and commensal Neisseria species produce an Adhesin Complex Protein, which was first characterised in Neisseria meningitidis (Nm) as a novel surface-exposed adhesin with vaccine potential. In the current study, the crystal structure of a recombinant (r)Nm-ACP Type I protein
Selectivity in the potentiation of antibacterial activity of alpha-peptide beta-peptoid peptidomimetics and antimicrobial peptides by human blood plasma
Hein-Kristensen L, et al.
Research in Microbiology, 164(9), 933-940 (2013)
Maj Hedtjärn et al.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 24(12), 1333-1351 (2004-12-31)
Brain ischemia triggers an inflammatory reaction that progresses for days to weeks and seems to have a role in secondary progression of injury. Inflammation induces a complex pattern of signaling molecules with partly contradictory actions, and the responses may be
Natural Food Antimicrobial Systems (2000)
Thomas Gibaud et al.
Physical review letters, 110(5), 058303-058303 (2013-02-19)
We show that gels formed by arrested spinodal decomposition of protein solutions exhibit elastic properties in two distinct frequency domains, both elastic moduli exhibiting a remarkably strong dependence on volume fraction. Considering the large difference between the protein size and
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Protocols

Enzymatic Assay of Lysozyme (EC 3.2.1.17)

This enzymatic rate determination may be used for Lysozyme products. It is not to be used to assay recombinant or insoluble Lysozyme on agarose.

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