Basic Information

IDDRAMP21335
SequenceSFLTTVKKLVTNLAALAGTVIDTIKCKVTGGC
Length32
NameRPa (Frogs, amphibians, animals)
Sourcesynthetic construct
ActivityAntimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-, Antifungal
Pathogen[Ref.31242693] Gram-positive bacteria:Staphylococcus aureus (MIC=16 μM; MBC=32 μM), MRSA (MIC=>256 μM; MBC>256 μM), Enterococcus faecalis (MIC>256 μM; MBC>256 μM);##Gram-negative bacteria: Escherichia coli (MIC=32 μM; MBC=64 μM), Pseudomonas aeruginosa (MIC>256 μM; MBC>256 μM);##Fungi: Candida albicans (MIC>256 μM; MBC>256 μM)
Hemolytic Activity[Ref.31242693] 7% hemolysis at 16 μM, 23% hemolysis at 32 μM, 50% hemolysis at 64 μM, 76% hemolysis at 128 μM, 90% hemolysis at 256 μM, 100% hemolysis at 512 μM on horse erythrocytes.
Cytotoxicity[Ref.31242693] RPa only possessed inhibitory effect on the proliferation of H157 with the IC value of 5.841 μM, while showed no inhibitory effect on the proliferation of MCF-7, U251MG, PC-3 and MDA-MB-435s. DETAILED DATA: ①The cell viabillity of NCI-H157 induced by RPa is 97.5%, 94.4%, 92.5%, 71.2%, 40.6% and 4.4% at peptide concentrations of 0.001, 0.01, 0.1, 1, 10, 100 μM, while the cell viability induced by Melittin is 100%, 95%, 89.4%, 41.2%, 16.2% and 16.2% at 0.001, 0.01, 0.1, 1, 10, 100 μM. ②The cell viability of MCF-7 induced by RPa is 100.6%, 93.1%, 97.5%, 97.5%, 93.7% and 78.1% at peptide concentrations of 0.001, 0.01, 0.1, 1, 10, 100 μM , while the cell viability induced by Melittin is 100%, 98.1%, 92.5%, 7.5%, 8.7% and 8.7% at 0.001, 0.01, 0.1, 1, 10, 100 μM. ③The cell viability of U251-MG induced by RPa is 100%, 105.6%, 108.1%, 102.5%, 59.4% and 17.5% at peptide concentrations of 0.001, 0.01, 0.1, 1, 10, 100 μM, while the cell viability induced by Melittin is 99.4%, 99.4%, 75.6%, 18.7%, 11.9% and 18.1% at 0.001, 0.01, 0.1, 1, 10, 100 μM.④The cell viability of PC-3 induced by RPb is 108.7%, 104.4%, 92.5%, 92.5%, 82.5% and 24.4% at peptide concentrations of 0.001, 0.01, 0.1, 1, 10, 100 μM, while the cell viability induced by Melittin is 110%, 113.1%, 109.4%, 33.1%, 16.9% and 16.2% at 0.001, 0.01, 0.1, 1, 10, 100 μM. ⑤The cell viability of MDA-MB-435S induced by RPa is 97.5%, 95%, 97.5%, 73.1%, 68.8% and 36.9%, while the cell viability induced by Melittin is 100%, 93.1%, 82.5%, 18.8%, 18.8% and 18.1%.
N-terminal ModificationFree
C-terminal ModificationFree
Linear/Cyclic/BranchedLinear
Uniprot
PDB
3D View
PDB DownloadDownload PDB Predicted by Alphafold2
PubMed ID31242693

Physicochemical Properties

Residues32
SequenceSFLTTVKKLVTNLAALAGTVIDTIKCKVTGGC
Molecular Weight3266.912
Grand Average of Hydropathy0.794
Isoelectric Point9.303
Charge at pH 7.42.195
Secondary StructureHelix: 0.344, Turn: 0.156, Sheet: 0.219
Instability Index-15.322
Aromaticity0.031

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