The short version of pentadecapeptide fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2026-07-19 and is reviewed periodically as new material appears.
BPC-157 is a synthetic peptide composed of fifteen amino acids. Its sequence corresponds to part of a protein found in human gastric juice, which is the origin of the "body protection compound" label. In laboratory work the material is treated as a defined research chemical rather than a finished product. Published research has centered on animal models, and the peptide is not an approved medicine in most countries.
The peptide was first described in the early 1990s by a group studying gastric secretions and tissue repair. Its fifteen-residue chain is usually written as GEPPPGKPADDAGLV in single-letter code. The free peptide has the formula C62H98N16O22 and a theoretical mass near 1419.5 daltons. These identifiers are established chemical facts that can be checked against standard peptide databases. There is no ambiguity about the primary structure.
Most published work on BPC-157 consists of preclinical studies, including rodent models of tissue injury, gastrointestinal lesions, and vascular or tendon damage, together with in vitro cell assays. Reviews frequently note that the mechanisms proposed in these papers remain incompletely characterised and that findings have not been confirmed in large randomised human trials. The compound is widely sold as a research chemical rather than a licensed medicine, and labels commonly carry a statement that it is not for human use. Whether any of the reported animal effects translate to humans is an open question rather than an established result.
Terminology in the literature is not fully standardised. Papers and product listings use BPC-157, BPC 157, and the longer phrase stable gastric pentadecapeptide BPC 157 interchangeably, and synonyms such as bepecin or PL 14736 appear in older or company-linked publications. Purity claims and reported masses can also differ between sources because peptide preparations may include counterions, residual solvents, or bound water. This variability complicates direct comparison of results across studies and makes the exact identity and grade of a given sample worth verifying. Discussions of the compound should therefore specify the source, salt form, and stated purity where those are known.
| Property | Value | Notes |
|---|---|---|
| Amino acid count | 15 residues | Synthetic pentadecapeptide chain |
| Sequence | GEPPPGKPADDAGLV | Single-letter amino acid code |
| Molecular formula | C62H98N16O22 | Free peptide, without counter-ion |
| Theoretical mass | Approximately 1419.5 daltons | Varies slightly with adducts and counter-ions |
| Origin | Fragment of a human gastric juice protein | Source of the BPC designation |
BPC-157 is a synthetic fifteen-amino-acid peptide whose sequence is GEPPPGKPADDAGLV. Its name derives from the phrase body protection compound, a term applied to a protein fraction originally detected in human gastric juice. The short peptide is not that full protein; it corresponds to a stable fragment of the larger molecule. Researchers frequently describe it as a pentadecapeptide because it contains exactly fifteen residues. Its neutral molecular mass is approximately 1419 daltons.
The sequence places several glycine and proline residues near the middle, which may influence how the chain folds in solution. The peptide is linear rather than cyclic, and it carries no disulfide bridges. Commercial material is commonly supplied as the acetate salt, although the free base and other counterion forms also appear. Because the term BPC-157 refers to a specific sequence, samples with slight sequence variants are chemically different substances. Published work generally treats the fifteen-residue sequence as the defining structure.
Physical descriptions in supplier documents and papers usually list the compound as a white to off-white powder. It dissolves readily in water and in common aqueous buffers, and solutions are often prepared fresh before an experiment. Molecular mass near 1419 daltons helps verify identity during mass spectrometry. The powder is somewhat hygroscopic, so moisture exposure can alter the measured mass of a sample. Purity is typically reported as a percentage from chromatographic analysis.
BPC-157 is a synthetic peptide of fifteen amino acids, written in single-letter code as GEPPPGKPADDAGLV. The sequence corresponds to a partial fragment of a protein isolated from human gastric juice, described in early reports as body protection compound. The number 157 refers to a fragment designation in that work rather than to molecular mass. Initial descriptions appeared in the early 1990s, when the fragment was reported to protect gastrointestinal tissue in animal models. Commercial material is produced by solid-phase peptide synthesis rather than extracted from biological sources.
Laboratory research on this peptide has examined a wide and heterogeneous set of endpoints, including gastric ulcer models, tendon and ligament injury, wound closure, and intestinal inflammation. Most published findings come from rodent studies, and reported effect sizes are often large relative to controls. Because the compound has been tested across many unrelated injury models, the literature is frequently described as unusually broad for a single peptide. A substantial share of this work originates from a small number of research groups, which matters when assessing how widely results have been reproduced.
Evidence in humans is limited. Small clinical studies have examined the peptide in contexts such as ulcerative colitis and wound healing, but participant numbers are small and independent replication is scarce. It is not approved as a medicine by major regulatory agencies and is distributed mainly as a research material or compounded preparation. Long-term human safety data are not established, and questions about absorption through non-injected routes remain open rather than resolved. Claims about its effects are best read against these gaps.
== Procedure == The test uses the principles of gel electrophoresis to separate out the various types of hemoglobin and is a type of native gel electrophoresis. After the sample has been treated to release the hemoglobin from the red cells, it is introduced into a porous gel (usually made of agarose or cellulose acetate) and subjected to an electrical field, most commonly in an alkaline medium. Different hemoglobins have different charges, and according to those charges, they move at different speeds in the gel and eventually form discrete bands (see electrophoretic migration patterns). A quality control sample containing hemoglobins A, F, S, and C is run along with the patient sample to aid in identifying the different bands. The relative amounts of each type of hemoglobin can be estimated by measuring the optical density of the bands, though this method is not reliable for hemoglobins that are present in low quantities. Because hemoglobins exhibit different migration patterns depending on the pH level, testing the same sample at both an acid and an alkaline pH can help to identify some abnormal hemoglobins that would otherwise be impossible to distinguish from others.
== Popular culture == Tetrodotoxin serves as a plot device for characters to fake death, as in the films Hello Again (1987), The Serpent and the Rainbow (1988), The A-Team (2010), Captain America: The Winter Soldier (2014), and War (2019), and in episodes of Jane the Virgin, Miami Vice (1985), Nikita, MacGyver (season 7, episode 6, where the antidote is Datura stramonium leaf), CSI: NY (season 4, episode 9, "Boo"), and Chuck. In Law Abiding Citizen (2009), Alex Cross (2012), and Send Help (2026), paralysis is presented as a method of assisting torture. The toxin was also referenced in "synthetic form" in season 1, episode 2, of the series "FBI". The toxin is used as a weapon in both the second season of Archer, in Covert Affairs and in the Inside No. 9 episode "The Riddle of the Sphinx". In Columbo, episode 2 of season 7, fugu is used to kill the antagonist's victim. In The Apothecary Diaries light novel, as well as the respective manga and anime adaptations, fugu toxin is encountered across multiple mystery arcs. Based on the presumption that tetrodotoxin is not always fatal, but at near-lethal doses can leave a person extremely unwell with the person remaining conscious, tetrodotoxin has been alleged to result in zombieism, and has been suggested as an ingredient in Haitian Vodou preparations. This idea first appeared in the 1938 non-fiction book Tell My Horse by Zora Neale Hurston in which there were multiple accounts of purported tetrodotoxin poisoning in Haiti by a voodoo sorcerer called the bokor.
Pan genomics is a concept introduced in 2005 by Tettelin and Medini. Pan genome is the complete gene repertoire of a particular monophyletic taxonomic group. Although initially applied to closely related strains of a species, it can be applied to a larger context like genus, phylum, etc. It is divided in two parts: the Core genome, a set of genes common to all the genomes under study (often housekeeping genes vital for survival), and the Dispensable/Flexible genome: a set of genes not present in all but one or some genomes under study. A bioinformatics tool BPGA can be used to characterize the Pan Genome of bacterial species.
== Distribution and habitat == Vanilla planifolia is a native of the neotropical realm, from southern Mexico through Central America, Colombia, and the northern portions of Brazil. Previously it had been thought to be native to just southern Mexico and Belize. Because of cultivation, V. planifolia has additionally spread to tropical areas across the world, primarily in south Florida, the Cayman Islands, the Dominican Republic, Jamaica, Puerto Rico, tropical portions of Peru, Ecuador, Venezuela, French Guiana, Suriname, and Guyana in the Americas, but also the Democratic Republic of the Congo, Madagascar, Comoros, Bangladesh, the Malay Peninsula, the island of Java, the Chagos Archipelago, Cook Island, New Guinea, and New Caledonia. Vanilla planifolia requires a humid, warm tropical climate and grows best between 20 and 30 °C (68 and 86 °F) in humid conditions. It can only accept a minimum of 10 °C (50 °F) and a maximum of 33 °C (91 °F). Minimum rainfall requirements are about 2000 mm per year. For good growth it prefers well-draining soils with a pH between 6.0 and 7.0 and plenty of available calcium and potassium. The natural altitude range is from 150 to 900 meters. To trigger flowering it requires a dry period in the spring. Due to human land uses for crops and timber the required habitat for Vanilla planifolia has become very reduced and fragmented. The number of mature individuals in the wild is declining and the amount of suitable habitat also continues to decline. The IUCN formally assessed the species as Endangered in 2017, publishing their assessment in 2020.
Sources: en.wikipedia.org
The drug works in hypertensive patients with high, normal, or low renin plasma concentrations, although acebutolol may be more efficient in patients with high or normal renin plasma concentrations. In clinically relevant concentrations, a membrane-stabilizing effect does not appear to play an important role.
These are carved from grey marble veined with white, identified as that of the quarries of Lartos, in Rhodes. The base has the shape of the bow of a Greek Hellenistic warship: long and narrow, it is covered at the front by a combat deck on which the statue is located. It has reinforced, projecting oar boxes on the sides that supported two rows of staggered oars (the oval oar slots are also depicted). The keel is rounded. At the bottom of the bow, at the waterline, a large triple-pronged spur would have been sculpted, and a little higher up, a smaller two-bladed ram that would have been used to smash the hull of the enemy ship would have been shown. The top of the bow was crowned by a high and curved bow ornament (the acrostolion). These missing elements have not been reconstructed, which greatly reduces the vessel's warlike appearance. Epigraphist Christian Blinkenberg thought that this bow was that of a trihēmiolia, a type of warship often named in Rhodes inscriptions: the island's shipyards were renowned, and its war fleet important. But specialists in ancient naval architecture do not agree on the ascription of the trihemolia. It can only be said that the Samothrace bow has boxes of oars and two benches of superimposed oars. Each oar being operated by several rowers, this can also be suitable for a quadrireme (4 files of rowers) or a quinquereme (5 files of rowers). These ships were widespread in all Hellenistic war fleets, including the Rhodian fleet.
Rubidium was discovered in 1861 by Robert Bunsen and Gustav Kirchhoff, in Heidelberg, Germany, in the mineral lepidolite through flame spectroscopy. Because of the bright red lines in its emission spectrum, they chose a name derived from the Latin word rubidus, meaning "deep red". Rubidium is a minor component in lepidolite. Kirchhoff and Bunsen processed 150 kg of a lepidolite containing only 0.24% rubidium monoxide (Rb2O). Both potassium and rubidium form insoluble salts with chloroplatinic acid, but those salts show a slight difference in solubility in hot water. Therefore, the less soluble rubidium hexachloroplatinate (Rb2PtCl6) could be obtained by fractional crystallization. After reduction of the hexachloroplatinate with hydrogen, the process yielded 0.51 grams of rubidium chloride (RbCl) for further studies. Bunsen and Kirchhoff began their first large-scale isolation of caesium and rubidium compounds with 44,000 litres (12,000 US gal) of mineral water, which yielded 7.3 grams of caesium chloride and 9.2 grams of rubidium chloride. Rubidium was the second element, shortly after caesium, to be discovered by spectroscopy, just one year after the invention of the spectroscope by Bunsen and Kirchhoff. The two scientists used the rubidium chloride to estimate that the atomic weight of the new element was 85.36 (the currently accepted value is 85.47).
Sources: en.wikipedia.org
=== Urgent === In surgery, a guillotine amputation is an amputation performed without closure of the skin in an urgent setting. Typical indications include catastrophic trauma or infection control in the setting of infected gangrene. A guillotine amputation is typically followed by a more time-consuming, definitive amputation such as an above or below knee amputation.
== Education == Developing and implementing blood management/transfusion related education sessions/programs is an important aspect of the TP role. Education can be targeted for the appropriate clinical groups (nursing, medical and allied health professionals) highlighting and promoting evidence-based practice change or national and international recommendations. TPs act as a resource regarding transfusion and PBM information for all staff involved in the transfusion process. They develop, deliver, evaluate, and revise transfusion-practice/PBM educational content based on evidence-based practice and national/international recommendations. Education topics include, but are not limited to:
=== Dietary supplement === In the United States, the extract for use in dietary supplements has self-affirmed generally recognized as safe (GRAS) status, as an ingredient. Supplemental use occurs in various forms, such as root powders, an additive in tea or coffee, and capsules alone or in combination with other ingredients. It is commonly used by bodybuilders or other sports participants in the belief the compound can increase testosterone levels that would improve performance. Available clinical research has found no significant effect of E. longifolia as a supplement. It is under preliminary research for erectile dysfunction, immunomodulation, and other effects. Side effects of using supplements may include nausea, abdominal discomfort, diarrhea, or headaches. Rare cases of liver injury have occurred from its use, mostly in bodybuilders. E. longifolia supplements should not be used during pregnancy. Its long-term safety over regular use has not been adequately assessed.
Sources: en.wikipedia.org
The peptide is synthetic, but its sequence matches a segment of a protein present in human gastric juice. It does not occur as a free fifteen-residue peptide in the body.
Rodents account for the large majority of published experiments. Human data are sparse and mostly observational, so cross-species extrapolation remains uncertain.
It is not an approved therapeutic in most jurisdictions. Regulatory status varies by country, and several places restrict it as a research chemical.
BPC-157 is a synthetic fifteen-amino-acid peptide whose sequence corresponds to a fragment of a protein found in human gastric juice. It is studied mainly in preclinical research and is not an approved pharmaceutical product in major markets. Materials sold for laboratory use are typically labelled as research chemicals.