General Information

  • ID:  hor002268
  • Uniprot ID:  P21141
  • Protein name:  Leucokinin-2
  • Gene name:  NA
  • Organism:  Rhyparobia maderae (Madeira cockroach) (Leucophaea maderae)
  • Family:  NA
  • Source:  animal
  • Expression:  NA
  • Disease:  NA
  • Comments:  NA
  • Taxonomy:  Rhyparobia (genus), Oxyhaloinae (subfamily), Blaberidae (family), Blaberoidea (superfamily), Blattodea (order), Dictyoptera (superorder), Polyneoptera (cohort), Neoptera (infraclass), Pterygota (subclass), Dicondylia, Insecta (class), Hexapoda (subphylum), Pancrustacea, Mandibulata, Arthropoda (phylum), Panarthropoda, Ecdysozoa, Protostomia, Bilateria, Eumetazoa, Metazoa (kingdom), Opisthokonta, Eukaryota (superkingdom), cellular organisms
  • GO MF:  NA
  • GO BP:  GO:0007218 neuropeptide signaling pathway
  • GO CC:  GO:0005576 extracellular region

Sequence Information

  • Sequence:  DPGFSSWG
  • Length:  8(1-8)
  • Propeptide:  DPGFSSWG
  • Signal peptide:  NA
  • Modification:  T8 Glycine amide
  • Glycosylation:  NA
  • Mutagenesis:  NA

Activity

  • Function:  Stimulates contractile activity of cockroach protodeum
  • Mechanism:  NA
  • Cross BBB:  NO
  • Target:  NA
  • Target Unid:  NA
  • IC50: NA
  • EC50: NA
  • ED50: NA
  • kd: NA
  • Half life: NA

Structure

  • Disulfide bond:  NA
  • Structure ID:  NA

  • Structure: (PDB_ID-from https://www.rcsb.org/; AlphaFold_DB_ID-from https://alphafold.ebi.ac.uk/; hordbxxxxxx_AF2.pdb was predicted structure by AlphaFold2; hordbxxxxxx_ESM.pdb was predicted structure by ESMFold)
    •    hor002268_AF2.pdbhor002268_ESM.pdb

Physical Information

Mass: 97690 Formula: C39H49N9O13
Absent amino acids: ACEHIKLMNQRTVY Common amino acids: GS
pI: 3.75 Basic residues: 0
Polar residues: 4 Hydrophobic residues: 2
Hydrophobicity: -70 Boman Index: -833
Half-Life: 1.1 hour Half-Life Yeast: 3 min
Half-Life E.Coli: >10 hour Aliphatic Index 0
Instability Index: 1986.25 Extinction Coefficient cystines: 5500
Absorbance 280nm: 785.71

Literature

  • PubMed ID:  NA
  • Title:  Isolation, primary structure and synthesis of two neuropeptides from Leucophaea maderae: members of a new family of Cephalomyotropins.