Peptídeos
Os peptídeos são cadeias curtas de aminoácidos ligados por ligações peptídicas, desempenhando papéis importantes como moléculas biológicas em processos celulares. Eles funcionam como hormônios, neurotransmissores e moléculas de sinalização, sendo amplamente utilizados em aplicações terapêuticas e diagnósticas. Os peptídeos também são cruciais na pesquisa para estudar interações proteicas, atividades enzimáticas e vias de sinalização celular. Na CymitQuimica, oferecemos uma ampla seleção de peptídeos de alta qualidade para apoiar suas necessidades de pesquisa e desenvolvimento em biotecnologia e farmacêutica.
Subcategorias de "Peptídeos"
Foram encontrados 29635 produtos de "Peptídeos"
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H-TDEGIAYR^-OH
Peptide H-TDEGIAYR^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.
[5-FAM]-GLP-1 (7-36)
The native form of GLP-1 in humans is the GLP-1 (7-36) amide. GLP-1 (7-36) amide is highly unstable (half-life <-2 minutes) due to proteolytic degradation by the serine protease- dipeptidyl peptidase-IV (DPP-IV). DPP-IV cleaves the N-terminal histidine and alanine residues from GLP-1 to generate two equipotent forms: GLP-1 (9-37) and GLP-1 (9-36) amide. This degradation mitigates against the therapeutic use of GLP-1 itself, therefore DPP-IV-resistant peptide analogues have been developed and licensed for clinical useThis peptide contains N-terminal 5-Carboxyfluorescein (5-FAM), a widely used green fluorescent tag
Peso molecular:3,653.7 g/molnef protein (75-82) [Human immunodeficiency virus 1]
Nef is an accessory protein highly conserved amongst all primate lentiviruses, it is essential for viral replication in vivo- it is expressed by human immunodeficiency virus (HIV) HIV-1 and HIV-2. Nef acts as a downregulator of class I human leukocyte antigens (HLA) expression in HIV-infected cells to help circumvent the immune response, such as cytotoxic T lymphocytes (CTL) activity. An intact nef gene is critical for high viral loads, linked to development of acquired immunodeficiency syndrome (AIDS). Certain alleles of HLA have been associated with maintaining a seronegative status such as HLA-A*1101. This nef peptide sequence (75-82) was crystallised within the class I B allele HLA B*3501 suggesting an importance of key residues required for HLA interaction resulting in a nonstandard conformational binding.Peso molecular:975.5 g/molH-DRV^YIHP^F^HL-OH
Peptide H-DRV^YIHP^F^HL-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.Myelin PLP (178-191)
Myelin PLP (178-191) is a peptide that is immunogenic. It is useful for the study of myelin protein and its role in the human body. It can be used for various purposes, such as studying the effects of myelin protein on the immune system or how it is involved in neural transmission.Fórmula:C70H105N18O22SPureza:Min. 95%Peso molecular:1,582.79 g/molH-RPPGFSPF^R-OH
Peptide H-RPPGFSPF^R-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.SARS-CoV-2 Spike (975-983)
The SARS-CoV-2 spike protein is present on the outside of the virus particles and can bind to angiotensin-converting enzyme II (ACE2) present on the host cells. The C-terminal receptor binding domain (RBD) of the spike protein binds to the N-terminal peptidase M2 domain of ACE2. This receptor binding results in the internalisation of the virus-receptor complex and is, therefore the mechanism of entry of SARS-CoV-2 into host cells.The spike protein residues SVLNDILSR (975-983) from SARS-CoV-2 have been identified as a T-cell epitope with a predicted HLA restriction. Immune targeting of confirmed epitopes may potentially offer protection against SARS-CoV-2 and help the development of vaccines for long-lasting immunity.Peso molecular:1,015.6 g/molPAR-4 Agonist (Human)
Protease activated receptors (PARs) are a distinctive four-member family of seven transmembrane G protein-coupled receptors (GPCRs) widely expressed in inflammatory cells. PARs are cleaved by certain serine proteases to expose a tethered ligand domain, this ligand domain then binds to and activates the receptors to initiate multiple signalling cascades. These PAR-activating proteases therefore represent PAR agonists. This PAR-4 agonist peptide represents the N-terminal sequence of the 'tethered ligand' and is therefore capable of activating the receptor independently of N-terminal proteolysis.
Cor e Forma:PowderPeso molecular:618.3 g/molH-MFL^SFPTTK-OH
Peptide H-MFL^SFPTTK-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.D-Pen(p-Me-Bzl)
As a metabolite of penicillin and a di-methly analog of cysteine, D-Penicillamine (D-Pen) has properties as a heavy metal chelator. In particular, D-Pen forms complexes with thiol groups of copper ions and so can help regulate conditions such as Wilson’s disease, contributing to the renal excretion of copper. Studies have suggested that D-Pen could be used in the treatment of Alzheimer’s disease due to a reduced activity of copper and zinc superoxide dismutases in the blood of Alzheimer’s disease patients. It can further be used to treat copper and lead poisoning cases. Although D-Pen is clinically relevant, it is important to distinguish it from its enantiomer L-Pen which has been found to be toxic and can result in neuritis and marrow damage.Fórmula:C13H19NO2SPureza:Min. 95%Peso molecular:253.2 g/molAlyteserin-2c
CAS:Alyerserin-2c is a C-terminally α-amidated 17 residue cationic anti-microbial peptide (AMP). Anti-microbial peptides (AMPs) are produced by the innate immune system and are expressed when the host is challenged by a pathogen. The Alyerserin family of peptides was first identified in norepinephrine-stimulated skin secretions of the midwife toad-Alytes obstetricans-(Alytidae). Alyteserin-2a, 2b and -2c show some sequence identity with bombinin H6, a peptide from the skins Bombinatoridae family of frogs.Alyteserin-2c is most potent against the Gram-positive bacteria-Staphylococcus aureus and has weak haemolytic activity against human erythrocytes.Alyteserin contain at least 50% hydrophobic amino acids. Hydrophobic residues contribute to the insertion of the peptide into the hydrophobic membrane core which results in membrane disruption and death of the pathogen. Due to their mechanism of action it is thought to be less likely for resistance to develop towards these peptides compared to conventional antibiotics.Fórmula:C80H145N19O20Cor e Forma:PowderPeso molecular:1,693.15 g/mol[5-TAMRA] Galanin, Human
Galanin is a neuropeptide synthesised and released by the brainstem locus coeruleus (LC). Galanin is expressed in most LC neurons in rodents and humans. Galanin has been shown to inhibit LC activity by hyperpolarising LC neurons, suppressing their spontaneous firing rate, and enhancing alpha2-adrenergic receptor-mediated negative feedback. Galanin is also a potent trophic and neuroprotective factor throughout the nervous system.Galanin is widely distributed in the central nervous, peripheral, and endocrine systems. Galanin's overarching function is as an inhibitory, hyper-polarizing neuromodulator for classical neurotransmitters like acetylcholine and serotonin. Galanin interacts with 3 receptor subtypes, GalR1-3 G protein-coupled receptors inserted into the plasma membrane. GalR1 is believed to activate a Gβγ pathway to regulate MAPK activation. GalR2 can also activate the MAPK pathway, but unlike GalR1, there is detectable inositol phosphate production. GalR3 is associated with the Galphai/o pathway. Activation of the receptor leads to a cellular influx of K+. Each receptor has been associated with neurological diseases such as GalR3 and epilepsy.Galanin protects against various physiological insults in vitro, including excitotoxicity and β-amyloid toxicity. Changes in galanin have been widely studied concerning Alzheimer's disease, and galaninergic neurons are spared in late-stage Alzheimer's relative to non-galaninergic neurones.Galanin is provided here with an N-terminal 5-TAMRA, a widely used red fluorescent reagent ideal for peptide labelling and detection. The excitation/emission for this reagent is 555 nm/580 nm. Cymit Quimica Laboratories Ltd is a custom peptide provider. If you desire an alternate dye, please contact us to request a custom synthesis.Peso molecular:3,566.7 g/molH-GNPTVEVDLFTSK^-OH
Peptide H-GNPTVEVDLFTSK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.
H-NLFLNHSENATAK^-OH
Peptide H-NLFLNHSENATAK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.VIP Antagonist
CAS:Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolFórmula:C154H257N49O40SPeso molecular:3,467.13 g/molH-NSSVSGIFTFQK^-OH
Peptide H-NSSVSGIFTFQK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.
H-NNQIDHIDEK^-OH
Peptide H-NNQIDHIDEK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.H-TAFQEALDAAGDK^-OH
Peptide H-TAFQEALDAAGDK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.
SARS-CoV-2 Spike (1192-1200)
The SARS-CoV-2 spike protein is present on the outside of the virus particles and can bind to angiotensin-converting enzyme II (ACE2) present on the host cells. The C-terminal receptor binding domain (RBD) of the spike protein binds to the N-terminal peptidase M2 domain of ACE2. This receptor binding results in the internalisation of the virus-receptor complex and is, therefore the mechanism of entry of SARS-CoV-2 into host cells.The spike protein residues NLNESLIDL (1192-1200) from SARS-CoV-2 have been identified as a T-cell epitope with a predicted HLA restriction. Immune targeting of confirmed epitopes may potentially offer protection against SARS-CoV-2 and help the development of vaccines for long-lasting immunity.Peso molecular:1,029.5 g/mol
![[5-FAM]-GLP-1 (7-36)](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F3D%2Fthumb-webp%2FCRB1100877.webp&w=3840&q=75)
![nef protein (75-82) [Human immunodeficiency virus 1]](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F3D%2Fthumb-webp%2FCRB1001224.webp&w=3840&q=75)
![[5-TAMRA] Galanin, Human](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F3D%2Fthumb-webp%2FCRB1101555.webp&w=3840&q=75)
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