The long form of somatostatin, with 14 amino acids extended at the N-terminus of SST-14. It is primarily secreted by the intestine and has a stronger inhibitory effect on pancreatic islets. Its half-life is also very short. Research-grade material for studies of somatostatin isoforms, tissue specificity, and endocrine regulation.
Basic Information
- Product Name
- Somatostatin-28 (SST-28)
- Catalog No.
- P-32019
- CAS No.
- —
- Sequence
- H-SANSNPAMAPRERKAGCKNFFWKTFTSC-OH {cyclo=disulfide:17-28}
- Molecular Formula
- C137H209N41O39S3
- Molecular Weight
- 3148.60
Peptide Depictor
28 aa
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Natural AA
Non-natural AA
Linker-like
Side-chain mod
Unknown
Acidic
Basic
Hydrophobic
Aromatic
Modified
Disulfide bond
Cyclization bond
AI-Assisted Peptide Property AnalysisShowHide
Sequence Overview
H-SANSNPAMAPRERKAGCKNFFWKTFTSC-OH {cyclo=disulfide:17-28}
Length
28.00
Molecular Weight
3146.46 Da
Monoisotopic Mass
3146.46 Da
Estimated Net Charge
4.000
pI
10.34
Hydrophobicity GRAVY
-0.7320
Physicochemical Properties
Basic Residue Ratio
18%
Acidic Residue Ratio
4%
Aromatic Residue Ratio
14%
Cys Count
2.000
Oxidation-Risk Residues
4.000
Asp-Gly / Asn-Gly
0.000
Solubility Analysis
Water Solubility
Good
Acidic Aqueous Compatibility
Suitable
Basic Aqueous Compatibility
Use with caution
DMSO Solubility Tendency
Moderate
Recommended Delivery Form
free
- 含多个Cys，溶解和氧化状态需同步控制
Calculation Parameters
Calculated parameters are model predictions for research design, candidate comparison, and project evaluation only. They are not experimental measurements or final synthesis outcomes.
| Property | Parameter | Value | Result |
|---|---|---|---|
| Hemolysis Risk | score threshold | 0.03396————0.5640 | Non-hemolytic |
| Non-Fouling | score threshold | 0.04118————0.3892 | Fouling |
| Solubility | score threshold | 0.9854————0.3290 | Soluble |
| Cell-Penetrating Potential | score threshold | 0.7264————0.5028 | Cell-Penetrating |
| Toxicity Risk | score threshold | 0.2682————0.4900 | Non-Toxic |
| PAMPA Passive Membrane Permeability | predicted value | -10.72 | PAMPA prediction: lower passive membrane permeability |
| Caco-2 Permeability | predicted value | -5.852 | Caco-2 prediction: higher cell-model permeability |
| Half-Life Model Output | model output | 0.7961 | Model output only, not in-vivo half-life |