Identity
- Class
- Metabolic
- Molecular weight
- 2547 Da
- Residues
- 23
- Heavy atoms
- 181
- Reference slug
- obestatin
These are published properties of the molecule, given for identification. Values we cannot confirm are omitted rather than estimated. What these terms mean.
What this compound is
Twenty-three residues cut from the same precursor as ghrelin, from the stretch immediately after it. Named for what it was first reported to do, which later work did not settle.
Sequence
| 1 | FNAPFDVGIK LSGVQYQQHS QAL |
|---|
- Three-letter code
- Phe-Asn-Ala-Pro-Phe-Asp-Val-Gly-Ile-Lys-Leu-Ser-Gly-Val-Gln-Tyr-Gln-Gln-His-Ser-Gln-Ala-Leu
The one-letter code gives the amino-acid backbone. Terminal modifications, where a compound carries them, are accounted for in the molecular weight above but are not visible in the letters.
Residue composition
Counted directly from the sequence above. Obestatin is built from 14 of the twenty standard amino acids across 23 positions.
By residue
| Residue | Code | Count | Share |
|---|---|---|---|
| Glutamine | Q · Gln | 4 | 17.4% |
| Alanine | A · Ala | 2 | 8.7% |
| Phenylalanine | F · Phe | 2 | 8.7% |
| Glycine | G · Gly | 2 | 8.7% |
| Leucine | L · Leu | 2 | 8.7% |
| Serine | S · Ser | 2 | 8.7% |
| Valine | V · Val | 2 | 8.7% |
| Aspartic acid | D · Asp | 1 | 4.3% |
| Histidine | H · His | 1 | 4.3% |
| Isoleucine | I · Ile | 1 | 4.3% |
| Lysine | K · Lys | 1 | 4.3% |
| Asparagine | N · Asn | 1 | 4.3% |
| Proline | P · Pro | 1 | 4.3% |
| Tyrosine | Y · Tyr | 1 | 4.3% |
By side-chain class
Nonpolar, aliphatic
10 · 43.5%
A G I L P V
Aromatic
3 · 13%
F Y
Polar, uncharged
7 · 30.4%
N Q S
Positively charged
2 · 8.7%
H K
Negatively charged
1 · 4.3%
D
Side-chain classes follow the standard grouping of the twenty proteinogenic amino acids. Composition is arithmetic over the published sequence and says nothing about how the molecule behaves.
Others in Metabolic
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In our catalogue
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17 residues · 2139 Da
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Thirty-nine residues ending in an amide. Originally isolated from the saliva of the Gila monster…
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30 residues · 3298 Da
Thirty residues, the fragment of GLP-1 that is actually active. Every long-acting analogue of it…
Reference entry
This is a reference entry. Sequence, residue count, molecular weight and atom count are published properties of the molecule, given for identification. Nothing on this page describes an application, benefit, dose, route or outcome, and nothing here should be read as an offer to supply or as guidance for use in a person or an animal. Materials sold by PepXtide are for laboratory research use only, are not for human or animal consumption, and have not been evaluated by the FDA.