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UniProtKB - C0HL59 (NDB4A_ISOMC)
Protein
Peptide Im-4
Gene
N/A
Organism
Isometrus maculatus (Lesser brown scorpion) (Scorpio maculatus)
Status
Functioni
Probably forms pores in target membranes. Has antibacterial activity against Gram-positive bacteria S.aureus NBRC 13276 (MIC=5-10 µM) and B.subtilis NBRC 3009 (MIC=2.5-5 µM) but not against Gram-negative bacterium E.coli NBRC 3972.
1 PublicationMiscellaneous
Fragments comprising residues 4-17 and 5-17 have been detected in venom but it is unclear whether they have a physiological role or are simply due to degradation.1 Publication
GO - Biological processi
- defense response to Gram-positive bacterium Source: UniProtKB
- killing of cells of another organism Source: UniProtKB
Keywordsi
Molecular function | Antibiotic, Antimicrobial |
Names & Taxonomyi
Protein namesi | Recommended name: Peptide Im-41 Publication |
Organismi | Isometrus maculatus (Lesser brown scorpion) (Scorpio maculatus)1 Publication |
Taxonomic identifieri | 497827 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Ecdysozoa › Arthropoda › Chelicerata › Arachnida › Scorpiones › Buthida › Buthoidea › Buthidae › Isometrus |
Subcellular locationi
Extracellular region or secreted
- Secreted 1 Publication
Other locations
- Target cell membrane 1 Publication
Note: Probably forms a helical membrane channel in the prey.1 Publication
Extracellular region or secreted
- extracellular region Source: UniProtKB
Other locations
- membrane Source: UniProtKB-KW
Keywords - Cellular componenti
Membrane, Secreted, Target cell membrane, Target membranePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
PeptideiPRO_0000442987 | 1 – 17 | Peptide Im-41 PublicationAdd BLAST | 17 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 17 | Lysine amide; partial1 Publication | 1 |
Keywords - PTMi
AmidationExpressioni
Tissue specificityi
Expressed by the venom gland.1 Publication
Structurei
3D structure databases
AlphaFoldDBi | C0HL59 |
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Family & Domainsi
Sequence similaritiesi
Belongs to the non-disulfide-bridged peptide (NDBP) superfamily. Short antimicrobial peptide (group 4) family.Curated
i Sequence
Sequence statusi: Complete.
Mass spectrometryi
Molecular mass is 1714.0 Da. Determined by MALDI. Amidated.1 Publication
Molecular mass is 1714.9 Da. Determined by MALDI. 1 Publication
Similar proteinsi
Cross-referencesi
3D structure databases
AlphaFoldDBi | C0HL59 |
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Family and domain databases
MobiDBi | Search... |
Entry informationi
Entry namei | NDB4A_ISOMC | |
Accessioni | C0HL59Primary (citable) accession number: C0HL59 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | January 31, 2018 |
Last sequence update: | January 31, 2018 | |
Last modified: | May 25, 2022 | |
This is version 8 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencingDocuments
- SIMILARITY comments
Index of protein domains and families