A practical reference on gastric juice protein: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
This page was last updated on 2026-03-29 and is reviewed periodically as new material appears.
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.
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.
Supplied material is typically a lyophilized white to off-white powder. The peptide is freely soluble in water and in common aqueous buffers, which allows it to be handled as a stock solution. Because the sequence contains no cysteine, disulfide cross-linking is not a route of degradation. The absence of aromatic residues means ultraviolet absorbance at 280 nm is minimal, so quantification usually relies on peptide bond absorbance near 214 nm or on amino acid analysis.
Common synonyms in catalogs include pentadecapeptide BPC 157, BPC157, and the full sequence name. A CAS registry number in the 137525-51-0 range is frequently listed, though the assignment should be verified against the supplier certificate of analysis. The name itself is not a pharmacopoeial designation, and there is no standardized international nonproprietary name. Distinguishing genuine material from related fragments generally requires mass spectrometry, since several truncated sequences share similar chromatographic behavior.
| Property | Value | Notes |
|---|---|---|
| Class | Synthetic peptide | Linear, fifteen residues |
| Sequence | GEPPPGKPADDAGLV | Single-letter amino acid code |
| Approximate mass | 1419 Da | Value reported for the free peptide |
| Reported origin | Fragment of a gastric juice protein | Used as the design template |
| Common synonyms | Body protection compound 157; PL 14736 | Naming varies across papers and suppliers |
BPC-157 is a synthetic pentadecapeptide, meaning it consists of fifteen amino acids joined in a single chain. Its sequence is Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val, a fragment corresponding to part of a larger protein found in human gastric juice. The peptide was first described in the 1990s by researchers in Zagreb who were studying gastric protective factors. It is not a naturally circulating hormone; it is a laboratory-made fragment derived from a stomach protein. The name is an abbreviation of body protection compound, with the number referring to the fragment's position in the source protein.
Most published work on BPC-157 comes from animal experiments rather than controlled human trials. Rodent models have examined its effects on gastrointestinal lesions, tendon and ligament injury, and blood vessel formation. These studies are often small and originate from a limited number of research groups, which affects how broadly the findings can be generalized. No large randomized human trial has been reported in the peer-reviewed literature. Discussion of the compound therefore rests largely on preclinical data, and questions about its effects in people remain open rather than settled.
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.
BPC-157 is a synthetic peptide composed of fifteen amino acid residues, with the sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. Its name derives from body protection compound, a term used for a protein fraction identified in human gastric juice. Researchers in Zagreb first reported the pentadecapeptide in the early 1990s and described it as a stable fragment of that larger protein. The compound is also catalogued as PL 14736 and, in some commercial contexts, as bepecin. Its molecular formula is C62H98N16O22 and its monoisotopic mass is approximately 1419 daltons.
Fe(II) + H2O2 → Fe(III)OH + HO· The Fenton reaction explains the toxicity of hydrogen peroxides because the hydroxyl radicals rapidly and irreversibly oxidize all organic compounds, including proteins, membrane lipids, and DNA. Hydrogen peroxide is a significant source of oxidative DNA damage in living cells. DNA damage includes formation of 8-Oxo-2'-deoxyguanosine among many other altered bases, as well as strand breaks, inter-strand crosslinks, and deoxyribose damage. By interacting with Cl−, hydrogen peroxide also leads to chlorinated DNA bases. Hydroxyl radicals readily damage vital cellular components, especially those of the mitochondria. The compound is a major factor implicated in the free-radical theory of aging, based on its ready conversion into a hydroxyl radical.
Forcipulatida (6 families, 63 genera, 269 species) Species in this order have distinctive pedicellariae, consisting of a short stalk with forceps-like tips. and tube feet with flat-tipped suckers usually arranged in four rows. The order includes well-known species from temperate and cold-water regions, ranging from intertidal to abyssal zones. Notomyotida (1 family, 8 genera, 75 species) These starfish are deep-sea dwelling and have particularly flexible arms with distinctive lines of musculature along the sides of the dorsal region. In some species, the tube feet lack suckers.
=== Bioradiations === Bioradiations is an online magazine created by Bio-Rad that offers researchers case studies, whitepapers, tips, techniques, and topics related to Bio-Rad products and services. Bioradiations began as a print magazine that was launched in 1965 and was printed until 2011 and replaced with the online publication.
PMID 1116247. Daly, M.M. (January 1976). "Effects of age and hypertension on utilization of glucose by rat aorta". American Journal of Physiology. 230 (1): 30–33. doi:10.1152/ajplegacy.1976.230.1.30. PMID 1251907. Park, Sung Suh; Kikkawa, Yutaka; Goldring, Irene P.; Daly, Marie M.; Zelefsky, Melvin; Shim, Chang; Spierer, Morris; Morita, Toyohiko (June 1, 1977). "An Animal Model of Cigarette Smoking in Beagle Dogs Correlative Evaluation of Effects on Pulmonary Function, Defense, and Morphology". American Review of Respiratory Disease. 115 (6): 971–979. doi:10.1164/arrd.1977.115.6.971 (inactive 12 July 2025). PMID 262108. Retrieved 8 November 2018.{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link) Daly, Marie M.; Seifter, Sam (August 1980). "Uptake of creatine by cultured cells". Archives of Biochemistry and Biophysics. 203 (1): 317–324. doi:10.1016/0003-9861(80)90182-4. PMID 7406503. Daly, Marie M. (February 1, 1985). "Guanidinoacetate methyltransferase activity in tissues and cultured cells". Archives of Biochemistry and Biophysics. 236 (2): 576–584. doi:10.1016/0003-9861(85)90661-7. PMID 3970526.
Sources: en.wikipedia.org
=== International guidelines === The World Cancer Research Fund recommends limiting red meat to no more than three servings per week. The European Association for the Study of Diabetes recommends that diabetics minimise the consumption of red meat.
=== Pharmacokinetics and metabolism === As plecanatide acts on receptors present on the apical side of endothelial cells lining the gastrointestinal tract it is able to impart its effect without ever entering circulation. As with most orally ingested peptides, plecanatide is degraded by intestinal enzymes, and so very little of the active drug enters systemic circulation. Minimal amounts of the drug are expected to be transported in to the body, and concentrations of plecanatide and its metabolites are undetectable in plasma following the recommended dosage of 3 mg. It has also been shown that dosages up to 48.6 mg produced no detectable concentration of plecanatide in human plasma at any time point after ingestion.
Many problems in AI (including reasoning, planning, learning, perception, and robotics) require the agent to operate with incomplete or uncertain information. AI researchers have devised a number of tools to solve these problems using methods from probability theory and economics. Precise mathematical tools have been developed that analyse how an agent can make choices and plan, using decision theory, decision analysis, and information value theory. These tools include models such as Markov decision processes, dynamic decision networks, game theory and mechanism design. Bayesian networks are a tool that can be used for reasoning (using the Bayesian inference algorithm), learning (using the expectation–maximisation algorithm), planning (using decision networks) and perception (using dynamic Bayesian networks). Probabilistic algorithms can also be used for filtering, prediction, smoothing, and finding explanations for streams of data, thus helping perception systems analyse processes that occur over time (e.g., hidden Markov models or Kalman filters).
Sources: en.wikipedia.org
The outer layer is continuous with the pretracheal fascia, attaching the gland to the cricoid and thyroid cartilages via a thickening of the fascia to form the posterior suspensory ligament of thyroid gland, also known as Berry's ligament. This causes the thyroid to move up and down with the movement of these cartilages when swallowing occurs.
== Additional proteins performing this function == APOBEC1 APOBEC3A-H, APOBEC3G - affects HIV Activation-induced cytidine deaminase (AICDA) Cytidine deaminase (CDA) dCMP deaminase (DCTD) AMP deaminase (AMPD1) Adenosine Deaminase acting on tRNA (ADAT) Adenosine Deaminase acting on dsRNA (ADAR) Double-stranded RNA-specific editase 1 (ADARB1) Adenosine Deaminase acting on mononucleotides (ADA) Guanine Deaminase (GDA)
Necrotizing periodontal diseases are non-contagious infections but may occasionally occur in epidemic-like patterns due to shared risk factors. The milder form, necrotizing ulcerative gingivitis (also termed "trench mouth"), is characterized by painful, bleeding gums and ulceration and necrosis of the interdental papilla. There may also be intra-oral halitosis, cervical lymphadenitis (swollen lymph nodes in the neck) and malaise. Predisposing factors include psychological stress, sleep deprivation, poor oral hygiene, smoking, immunosuppression and/or malnutrition. Necrotizing ulcerative periodontitis (NUP) is where the infection leads to attachment loss, and involves only the gingiva, periodontal ligament and alveolar ligament. Progression of the disease into tissue beyond the mucogingival junction characterizes necrotizing stomatitis (cancrum oris).
Paradoxical effects: In some cases, paradoxical effects can occur with benzodiazepines, such as increased hostility, aggression, angry outbursts, and psychomotor agitation. These effects are seen more commonly with lorazepam than with other benzodiazepines. Paradoxical effects are more likely to occur with higher doses, in people with pre-existing personality disorders and those with a psychiatric illness. Frustrating stimuli may trigger such reactions, though the drug may have been prescribed to help the person cope with such stress and frustration in the first place. As paradoxical effects appear to be dose-related, they usually subside on dose reduction or on complete withdrawal of lorazepam. Suicidality: Benzodiazepines are associated with an increased risk of suicide, possibly due to disinhibition. Higher dosages appear to confer greater risk. Amnesic effects: Among benzodiazepines, lorazepam has relatively strong amnesic effects, but people soon develop tolerance to this with regular use. An initial total daily lorazepam dose that does not exceed 2 mg may help avoid amnesia (or excess sedation) being a problem. This also applies to use for night sedation. Five participants in a sleep study were prescribed lorazepam 4 mg at night, and the next evening, three subjects unexpectedly volunteered memory gaps for parts of that day, an effect that subsided completely after two to three days' use. Amnesic effects cannot be estimated from the degree of sedation present, since the two effects are unrelated.
Sources: en.wikipedia.org
It is a synthetic fifteen-amino-acid peptide whose sequence matches part of a protein found in human gastric juice. It is made by chemical synthesis, not purified from tissue. The name derives from an early fragment label, not from a molecular weight.
The sequence corresponds to a segment of a naturally occurring gastric protein, so related sequence material exists in the body. The peptide itself as sold and studied is a laboratory-synthesized product. Whether an identical free peptide circulates naturally is not established.
No major regulatory agency has approved it as a medicine for any indication. It appears in research supply channels and, in some jurisdictions, in compounded preparations. Clinical use therefore sits outside standard approved-product pathways, and regulatory status varies by country.
It is a synthetic peptide built from fifteen amino acids, with a mass of roughly 1419 daltons. The sequence is reported to match a fragment of a protein present in human gastric juice. It is not a naturally circulating hormone.