Melittin (Apis mellifera) (T3D2624)
Record Information | ||||||||||||||||||
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Version | 2.0 | |||||||||||||||||
Creation Date | 2009-07-06 21:35:27 UTC | |||||||||||||||||
Update Date | 2014-12-24 20:25:47 UTC | |||||||||||||||||
Accession Number | T3D2624 | |||||||||||||||||
Identification | ||||||||||||||||||
Common Name | Melittin (Apis mellifera) | |||||||||||||||||
Class | Protein | |||||||||||||||||
Description | Melittin is the main component of bee venom. It is a powerful stimulator of phospholipase A2 and also exhibits potent anti-microbial activity. (6) | |||||||||||||||||
Compound Type |
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Protein Structure | ||||||||||||||||||
Synonyms |
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Chemical Formula | Not Available | |||||||||||||||||
Average Molecular Mass | 7584.775 g/mol | |||||||||||||||||
CAS Registry Number | 20449-79-0 | |||||||||||||||||
Sequence | Not Available | |||||||||||||||||
Chemical Taxonomy | ||||||||||||||||||
Description | Not Available | |||||||||||||||||
Kingdom | Organic Compounds | |||||||||||||||||
Super Class | Organic Acids | |||||||||||||||||
Class | Carboxylic Acids and Derivatives | |||||||||||||||||
Sub Class | Amino Acids, Peptides, and Analogues | |||||||||||||||||
Direct Parent | Peptides | |||||||||||||||||
Alternative Parents | Not Available | |||||||||||||||||
Substituents | Not Available | |||||||||||||||||
Molecular Framework | Not Available | |||||||||||||||||
External Descriptors | Not Available | |||||||||||||||||
Biological Properties | ||||||||||||||||||
Status | Detected and Not Quantified | |||||||||||||||||
Origin | Exogenous | |||||||||||||||||
Cellular Locations |
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Biofluid Locations | Not Available | |||||||||||||||||
Tissue Locations | Not Available | |||||||||||||||||
Pathways |
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Applications | ||||||||||||||||||
Biological Roles | ||||||||||||||||||
Chemical Roles | ||||||||||||||||||
Physical Properties | ||||||||||||||||||
State | Liquid | |||||||||||||||||
Appearance | Clear solution. | |||||||||||||||||
Experimental Properties |
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Predicted Properties | Not Available | |||||||||||||||||
Spectra | ||||||||||||||||||
Spectra | Not Available | |||||||||||||||||
Toxicity Profile | ||||||||||||||||||
Route of Exposure | Injection (sting/bite) (7) | |||||||||||||||||
Mechanism of Toxicity | Melittin has strong haemolytic activity. It integrates into cell membranes and has multiple effects, probably, as a result of its interaction with negatively charged phospholipids. Melittin inhibits well known transport pumps such as the Na+-K+-ATPase and the H+-K+-ATPase, and increases the permeability of cell membranes to ions, particularly Na+ and indirectly Ca2+, because of the Na+-Ca2+-exchange. (1) | |||||||||||||||||
Metabolism | Free toxin may be removed by opsonization via the reticuloendothelial system (primarily the liver and kidneys) or it may be degraded through cellular internalization via the lysosomes. Lysosomes are membrane-enclosed organelles that contain an array of digestive enzymes, including several proteases. | |||||||||||||||||
Toxicity Values | LD50: 6.00 mg/kg (Intravenous, Mouse) (2) | |||||||||||||||||
Lethal Dose | Not Available | |||||||||||||||||
Carcinogenicity (IARC Classification) | No indication of carcinogenicity to humans (not listed by IARC). | |||||||||||||||||
Uses/Sources | Melittin is the main component of bee venom. (6) | |||||||||||||||||
Minimum Risk Level | Not Available | |||||||||||||||||
Health Effects | Melittin poisoning may cause development of optic neuritis and atrophy. Serious cases may lead to atrial fibrillation, cerebral infarction, acute myocardial infarction, Fisher's syndrome, Guillain-Barre syndrome, claw hand caused by Ulnar nerve entrapment, and haemorrhaging in the lungs. (5) | |||||||||||||||||
Symptoms | Melittin poisoning is characterized by burning or stinging pain, swelling, and redness at the site of the bee sting, and may be followed by swelling of the tongue and throat, difficulty breathing, and shock. (5) | |||||||||||||||||
Treatment | Not Available | |||||||||||||||||
Normal Concentrations | ||||||||||||||||||
Not Available | ||||||||||||||||||
Abnormal Concentrations | ||||||||||||||||||
Not Available | ||||||||||||||||||
External Links | ||||||||||||||||||
DrugBank ID | Not Available | |||||||||||||||||
HMDB ID | Not Available | |||||||||||||||||
PubChem Compound ID | 16129627 | |||||||||||||||||
ChEMBL ID | Not Available | |||||||||||||||||
ChemSpider ID | 17286438 | |||||||||||||||||
KEGG ID | C11198 | |||||||||||||||||
UniProt ID | P01501 | |||||||||||||||||
OMIM ID | ||||||||||||||||||
ChEBI ID | 25520 | |||||||||||||||||
BioCyc ID | Not Available | |||||||||||||||||
CTD ID | Not Available | |||||||||||||||||
Stitch ID | Melittin | |||||||||||||||||
PDB ID | 1BH1 | |||||||||||||||||
ACToR ID | Not Available | |||||||||||||||||
Wikipedia Link | Not Available | |||||||||||||||||
References | ||||||||||||||||||
Synthesis Reference | Not Available | |||||||||||||||||
MSDS | T3D2624.pdf | |||||||||||||||||
General References |
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Gene Regulation | ||||||||||||||||||
Up-Regulated Genes |
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Down-Regulated Genes |
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Targets
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- Catalyzes the hydrolysis of ATP coupled with the exchange of H(+) and K(+) ions across the plasma membrane. Responsible for acid production in the stomach.
- Gene Name:
- ATP4A
- Uniprot ID:
- P20648
- Molecular Weight:
- 114117.74 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- Catalyzes the hydrolysis of ATP coupled with the exchange of H(+) and K(+) ions across the plasma membrane. Responsible for potassium absorption in various tissues.
- Gene Name:
- ATP12A
- Uniprot ID:
- P54707
- Molecular Weight:
- 115509.45 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Hydrogen:potassium-exchanging atpase activity
- Specific Function:
- Required for stabilization and maturation of the catalytic proton pump alpha subunit and may also involved in cell adhesion and establishing epithelial cell polarity.
- Gene Name:
- ATP4B
- Uniprot ID:
- P51164
- Molecular Weight:
- 33366.95 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Steroid hormone binding
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients.
- Gene Name:
- ATP1A1
- Uniprot ID:
- P05023
- Molecular Weight:
- 112895.01 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Steroid hormone binding
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium, providing the energy for active transport of various nutrients.
- Gene Name:
- ATP1A2
- Uniprot ID:
- P50993
- Molecular Weight:
- 112264.385 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Steroid hormone binding
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients.
- Gene Name:
- ATP1A3
- Uniprot ID:
- P13637
- Molecular Weight:
- 111747.51 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Plays a role in sperm motility.
- Gene Name:
- ATP1A4
- Uniprot ID:
- Q13733
- Molecular Weight:
- 114165.44 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The beta subunit regulates, through assembly of alpha/beta heterodimers, the number of sodium pumps transported to the plasma membrane.Involved in cell adhesion and establishing epithelial cell polarity.
- Gene Name:
- ATP1B1
- Uniprot ID:
- P05026
- Molecular Weight:
- 35061.07 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-2 subunit is not known.Mediates cell adhesion of neurons and astrocytes, and promotes neurite outgrowth.
- Gene Name:
- ATP1B2
- Uniprot ID:
- P14415
- Molecular Weight:
- 33366.925 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-3 subunit is not known.
- Gene Name:
- ATP1B3
- Uniprot ID:
- P54709
- Molecular Weight:
- 31512.34 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
- General Function:
- Transporter activity
- Specific Function:
- May be involved in forming the receptor site for cardiac glycoside binding or may modulate the transport function of the sodium ATPase.
- Gene Name:
- FXYD2
- Uniprot ID:
- P54710
- Molecular Weight:
- 7283.265 Da
References
- Armas LA, Hollis BW, Heaney RP: Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. [15531486 ]
- The UniProt Consortium. The Universal Protein Resource (UniProt) Nucleic Acids Res. 2008;36:D190-D195.
12. Choriogonadotropin subunit beta (Protein Group)
- General Function:
- Beta subunit of the human chorionic gonadotropin (hCG). hCG is a complex glycoprotein composed of two glycosylated subunits alpha and beta which are non-covalently associated. The alpha subunit is identical to those in the pituitary gonadotropin hormones (LH, FSH and TSH). The beta subunits are distinct in each of the hormones and confer receptor and biological specificity. Has an essential role in pregnancy and maternal adaptation. Stimulates the ovaries to synthesize the steroids that are essential for the maintenance of pregnancy.
- Specific Function:
- Hormone activity
- Included Proteins:
- P0DN86 , P0DN87
References
- Vuorenoja S, Mohanty BP, Arola J, Huhtaniemi I, Toppari J, Rahman NA: Hecate-CGbeta conjugate and gonadotropin suppression shows two distinct mechanisms of action in the treatment of adrenocortical tumors in transgenic mice expressing Simian Virus 40 T antigen under inhibin-alpha promoter. Endocr Relat Cancer. 2009 Jun;16(2):549-64. doi: 10.1677/ERC-08-0232. Epub 2009 Mar 4. [19261682 ]