Peptídeos

Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool

Thyroglobulin (Tg) is a widely used biomarker of various differentiated thyroid cancer (DTC)- Tg is a substrate for thyroid hormone production. Detection and quantification of serum thyroglobulin levels remain challenging due to Tg's size, heterogeneity, and thyroglobulin autoantibodies (TgAb). Immunoassays offer the opportunity to tailor DTC treatments, but many patients are TgAb positive, excluding them from analysis during regression.Liquid chromatography-tandem mass spectrometry (LC-MS/MS) can overcome immunoassay issues by digestion of Tg to a tryptic peptide removing the interference from TgAbs.

Peptide H-VIILGDSGVGK^-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.

Peptide H-GRFTISADTSK^-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.

Encoded for by mitochondrial DNA, Humanin is an endogenous peptide known to be a ‘rescue factor’ with the ability to abolish neuronal cell death. This characteristic has promoted Humanin as a potential treatment for Alzheimer’s disease. Another function of Humanin is it can inhibit mitochondira-dependent apoptosis through preventing the formation of apoptotic bodies and the release of Cytochrome C.Humanin has been found to be related to aging related cardiovascular disease (ACVDs) due to evidence of Humanin serum levels as age increases. Furthermore Humanin increases the expression of antioxidant defense system proteins and impedes complexes I and III from their activity in the electron transport chain in myocardial cells and mitochondria, therefore decreasing oxidative stress damage caused by H2O2. Humanin further reduces reactive oxygen species production and protects cardiomyocytes and fibroblasts, from oxidative stress.Overall Humanin has a variety of protective functions such as mitochondrial homeostasis and redox systems regulation, anti-aging, prevention of myocardial fibrosis, anti-inflammation, metabolism improvement and autophagy promotion. It has also been found to improve beta-cell survival and thus can be used as a diabetes treatment due to it improving insulin secretion and resistance.

Peptide H-YNGIITETIK^-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.

Peptide Ac-QVPLRPMTYK-NH2 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.

Peptide LCBiot-YAEGTFISDYSIAMDKIHQQDFVNWLLAQKGKKNDWKHNITQ-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.

Portion of EBV EBNA 3

H-Glu(Glu-OH)-OH is a synthetic amino acid that is currently being investigated as a diagnostic agent for the detection of intracellular protein degradation by matrix metalloproteinase-9 (MMP-9). H-Glu(Glu-OH)-OH is taken up by cells in a concentration and time dependent manner, with an uptake rate of approximately 1.6 x 10^6 molecules per cell per hour. The uptake mechanism is not yet known, but has been hypothesized to be due to receptor binding. H-Glu(Glu-OH)-OH binds to cerebellar granule cells and alters mitochondrial metabolism, which may be related to its effects on the ubiquitin proteasome pathway. This compound also has diagnostic potential for atherosclerosis and glutamate transport disorders.

Formyl-MLF-[Cys(AF488)] is composed of the chemotactic peptide: N-formyl-methionine-leucine-phenylalanine. N-formyl-methionine is the N-terminal amino acid present on bacteria and allows the bacteria to interact with phagocytic cells such as macrophages and monocyte-derived dendritic cells through surface formyl-MLF receptors. As a result Formyl-MLF labelled with the fluorescent dye, Alexa Fluor 488 can be used as a marker of bacterial infections. It has also been demonstrated that the use of multiple formyl-MLF moieties can target polymeric drug delivery molecules to phagocytic cells. In addition to Alexa Fluor 488's application in marking bacterial infections, its properties of being photo-bleaching resistant and having a high quantum yield allow it to carry out its most common use in the visualisation and location of dendritic structures and synapses.

LL-37 is a member of the large cationic family of anti-microbial peptides called cathelicidins which have broad-spectrum anti-microbial activity and are expressed in many species. The only cathelicidin found in humans is LL-37, this is produced in epithelial cells, by proteolytic cleavage from the C-terminal of the hCAP-18 protein. LL-37 can be processed into different forms of anti-microbial peptides. As well as its anti-microbial properties LL-37 also regulates many aspects of the innate immune system and overexpression of LL-37 has been linked to autoimmune diseases such as asthma and psoriasis, making LL-37 the most studied form of the human cathelicidin peptides.More recently, studies have shown that LL-37 binds to SARS-CoV-2 S protein and inhibits binding to its receptor hACE2, which may inhibit viral entry into the cell. LL-37 is upregulated by vitamin D, therefore this may be one mode of action for the positive outcomes seen with vitamin D treatment for Covid-19.

Peptide H-GGGGG-Dabcyl 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.

Bombesin/GRP receptor agonist derived from the pro-apoptotic protein BIM, which is a member of the BCL-2 family proteins and activates the BAX and BAK proteins to promote apoptosis.The process of apoptosis can be activated by the intrinsic or extrinsic pathways, the former is activated by stress stimuli such as DNA damage and nutrient deficiency, while the latter is induced through activation of the death receptors FAS and TRAIL.The BCL-2 family's transmembrane anchor at the C-terminus allows them to locate at the mitochondrial outer membrane and play a vital role in apoptosis.Within the mitochondria BIM is a member of the BH3 molecules alongside, BIM, PUMA and NOXA which can all be activated by the intrinsic pathway. These in turn can initiate the homo-oligomerisation of BAX and BAK which induce mitochondrial outer membrane permeabilisation (MOMP) and the release of cytochrome c into the cytosol. Here cytochrome c associates with APAF-1 and dATP, ultimately activating effector caspase3/7 and apoptosis.BIM can be activated by CHOP-mediated transcription and phosphatase 2A-mediated dephosphorylation during endoplasmic reticulum stress. However when BIM is phosphorylated it undergoes degradation by the proteasome.