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Key Documents

L8402

Sigma-Aldrich

Lysozyme from human neutrophils

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

Synonym(s):

Mucopeptide N-acetylmuramoylhydrolase, Muramidase

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

human neutrophils

Quality Level

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.

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 lyse 0.6 μg of Micrococcus lysodeikticus per minute by turbidimetric detection at 600 nm when suspended in buffer at pH 6.2 at 25 °C.

Physical form

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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
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
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)
Natural Food Antimicrobial Systems (2000)
A A Roger Thompson et al.
Blood, 123(3), 366-376 (2013-11-08)
Neutrophil lifespan and function are regulated by hypoxia via components of the hypoxia inducible factor (HIF)/von Hippel Lindau/hydroxylase pathway, including specific roles for HIF-1α and prolyl hydroxylase-3. HIF-2α has both distinct and overlapping biological roles with HIF-1α and has not

Articles

A key resource feature at our Enzyme Explorer section of biochemicals is "Enzymes for Carbohydrate Analysis and Digestion." Offering kits, reagents, analysis, lists of enzymes related to PTM and carbohydrate metabolism.

Protocols

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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