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N7161

Sigma-Aldrich

Nogo-66(1-40) antagonist peptide

≥84% (HPLC)

Synonym(s):

NEP (1-40)

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About This Item

Empirical Formula (Hill Notation):
C204H322N56O64 · xC2HF3O2
Molecular Weight:
4583.08 (free base basis)
MDL number:
MFCD06411437
UNSPSC Code:
12352202
NACRES:
NA.32

Quality Level

100

Assay

≥84% (HPLC)

form

lyophilized solid

color

white

solubility

H2O: 1 mg/mL

UniProt accession no.

Q9NQC3

storage temp.

−20°C

SMILES string

[nH]1cnc(c1)C[C@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)C)CCCNC(=N)N)[C@H](CC)C)Cc6ccc(cc6

InChI

1S/C206H324N56O65/c1-23-104(15)163(258-169(292)109(20)226-174(297)126(59-67-148(210)272)240-201(324)166(107(18)26-4)261-199(322)160(101(9)10)255-153(277)92-223-171(294)120(41-30-33-75-207)230-186(309)138(86-115-51-57-119(271)58-52-115)249-202(325)165(106(

Gene Information

human ... RTN4(57142)

Amino Acid Sequence

Arg-Ile-Tyr-Lys-Gly-Val-Ile-Gln-Ala-Ile-Gln-Lys-Ser-Asp-Glu-Gly-His-Pro-Phe-Arg-Ala-Tyr-Leu-Glu-Ser-Glu-Val-Ala-Ile-Ser-Glu-Glu-Leu-Val-Gln-Lys-Tyr-Ser-Asn-Ser-NH2

Application

Nogo-66(1-40) antagonist peptide has been used as a Nogo-66 receptor antagonist peptide:
  • to study the preliminary therapeutic effect after inhibition of Nogo-A in the cauda equina compression (CEC) model
  • to determine the effects of Nogo-A/NgR1 on autophagic activation
  • to study its role in Nogo-B mediated axonal branching using Schwann cells and sensory neurons of mice

Biochem/physiol Actions

Myelin-derived axon outgrowth inhibitors, such as Nogo, may account for the lack of axonal regeneration in the central nervous system (CNS) after trauma in adult mammals. Nogo-66 can inhibit axonal outgrowth through an axonal Nogo-66 receptor (NgR). Competitive antagonists of NgR derived from amino-terminal peptide fragments of Nogo-66. The Nogo-66(1 40) antagonist peptide (NEP1 40) blocks Nogo-66 or CNS myelin inhibition of axonal outgrowth in vitro, demonstrating that NgR mediates a significant portion of axonal outgrowth inhibition by myelin. Intrathecal administration of NEP1 40 to rats with mid-thoracic spinal cord hemisection results in significant axon growth of the corticospinal tract, and improves functional recovery. Thus, Nogo-66 and NgR have central roles in limiting axonal regeneration after CNS injury, and NEP1-40 provides a potential therapeutic agent.

Legal Information

Sold under a non-exclusive license. For research use only, and not for diagnostic or therapeutic use or for use in humans.

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

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Certificates of Analysis (COA)

Lot/Batch Number
064M4720V
033M4716V
076K4702
123K1335

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Wei Xu et al.
Neuroscience, 431, 103-114 (2020-02-19)
Focal cerebral infarction leads to autophagic activation, which contributes to secondary neuronal damage in the ipsilateral thalamus. Although Nogo-A deactivation enhances neuronal plasticity, its role in autophagic activation in the thalamus after ischemic stroke remains unclear. This study aimed to
Tadzia GrandPré et al.
Nature, 417(6888), 547-551 (2002-05-31)
Myelin-derived axon outgrowth inhibitors, such as Nogo, may account for the lack of axonal regeneration in the central nervous system (CNS) after trauma in adult mammals. A 66-residue domain of Nogo (Nogo-66) is expressed on the surface of oligodendrocytes and
Neutralization of Nogo-A enhances synaptic plasticity in the rodent motor cortex and improves motor learning in vivo.
Zemmar A, Weinmann O, Kellner Y, et al.
The Journal of Neuroscience, 34(26), 8685-8698 (2014)
Xiaofei Sun et al.
Biochemical and biophysical research communications, 527(1), 131-137 (2020-05-25)
To investigate the expression of Nogo-A in dorsal root ganglion (DRG) in rats with cauda equina injury and the therapeutic effects of blocking Nogo-A and its receptor. Fifty-eight male Sprague-Dawley rats were divided randomly into either the sham operation group
Peng Zhai et al.
Biomedical materials (Bristol, England), 10(4), 045016-045016 (2015-08-05)
The adult mammalian central nervous system has limited ability to regenerate after injury. This is due, in part, to the presence of myelin-associated axon growth inhibitory proteins such as Nogo-A that bind and activate the Nogo receptor, leading to profound

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