General Information

  • ID:  hor003929
  • Uniprot ID:  P06298
  • Protein name:  Melanocyte-stimulating hormone alpha
  • Gene name:  pomc-a
  • Organism:  Xenopus laevis (African clawed frog)
  • Family:  POMC family
  • Source:  animal
  • Expression:  NA
  • Disease:  NA
  • Comments:  NA
  • Taxonomy:  Xenopus (subgenus), Xenopus (genus), Xenopodinae (subfamily), Pipidae (family), Pipoidea (superfamily), Anura (order), Batrachia (superorder), Amphibia (class), Tetrapoda, Dipnotetrapodomorpha, Sarcopterygii (superclass), Euteleostomi, Teleostomi, Gnathostomata, Vertebrata, Craniata (subphylum), Chordata (phylum), Deuterostomia, Bilateria, Eumetazoa, Metazoa (kingdom), Opisthokonta, Eukaryota (superkingdom), cellular organisms
  • GO MF:  GO:0005179 hormone activity
  • GO BP:  GO:0007218 neuropeptide signaling pathway
  • GO CC:  GO:0005576 extracellular region

Sequence Information

  • Sequence:  AYSMEHFRWGKPV
  • Length:  13
  • Propeptide:  MFRPLWGCFLAILGICIFHIGEVQSQCWESSRCADLSSEDGVLECIKACKTDLSAESPVFPGNGHLQPLSESIRKYVMTHFRWNKFGRRNSTGNDGSNTGYKREDISSYPVFSLFPLSDQNAPGDNMEEEPLDRQENKRAYSMEHFRWGKPVGRKRRPIKVYPNGVEEESAESYPMELRRELSLELDYPEIDLDEDIEDNEVESALTKKNGNYRMHHFRWGSPPKDKRYGGFMTPERSQTPLMTLFKNAIIKNSHKKGQ
  • Signal peptide:  MFRPLWGCFLAILGICIFHIGEVQS
  • Modification:  T13 Valine amide
  • Glycosylation:  NA
  • Mutagenesis:  NA

Activity

  • Function:  Anorexigenic peptide. Increases the pigmentation of skin by increasing melanin production in melanocytes.
  • Mechanism:  NA
  • Cross BBB:  NA
  • Target:  NA
  • Target Unid:  NA
  • IC50: NA
  • EC50: NA
  • ED50: NA
  • kd: NA
  • Half life: NA

Structure

  • Disulfide bond:  NA
  • Structure ID:  AF-P06298-F1(AlphaFold_DB_ID)
  • 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)
  •    hor003929_AF2.pdbhor003929_ESM.pdb

Physical Information

Mass: 182206 Formula: C75H106N20O18S
Absent amino acids: CDILNQT Common amino acids: AEFGHKMPRSVWY
pI: 9.3 Basic residues: 3
Polar residues: 3 Hydrophobic residues: 4
Hydrophobicity: -72.31 Boman Index: -2103
Half-Life: 4.4 hour Half-Life Yeast: >20 hour
Half-Life E.Coli: >10 hour Aliphatic Index 30
Instability Index: 3402.31 Extinction Coefficient cystines: 6990
Absorbance 280nm: 582.5

Literature

  • PubMed ID:  2564347
  • Title:  Particular Processing of Pro-Opiomelanocortin in Xenopus Laevis Intermediate Pituitary. Sequencing of Alpha- And Beta-Melanocyte-Stimulating Hormones