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Valorphin

Structure via PubChem · Public domain (PubChem)

EntityQ7912549· pop 6· linked from 760 articles

Valorphin, also known as VV-hemorphin-5, is a naturally occurring, endogenous opioid heptapeptide of the hemorphin family with the amino acid sequence H-Val-Val-Tyr-Pro-Trp-Thr-Gln-OH (VVYPWTQ). It is produced in the body via proteolyic cleavage of residues 33-39 of the β-chain of hemoglobin. Valorphin binds preferentially to the μ-opioid receptor and produces effects such as analgesia and self-administration in animals. It also possesses cytotoxic and antiproliferative properties against tumor cells, the mediation of which, because they are reversed by naloxone, appears to be dependent on the

Chemical data

Formula
C44H61N9O11
Molecular weight
892 g/mol
IUPAC name
(2S)-5-amino-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-methylbutanoyl]amino]-3-methylbutanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]pyrrolidine-2-carbonyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]-3-hydroxybutanoyl]amino]-5-oxopentanoic acid
SMILES
C[C@H]([C@@H](C(=O)N[C@@H](CCC(=O)N)C(=O)O)NC(=O)[C@H](CC1=CNC2=CC=CC=C21)NC(=O)[C@@H]3CCCN3C(=O)[C@H](CC4=CC=C(C=C4)O)NC(=O)[C@H](C(C)C)NC(=O)[C@H](C(C)C)N)O
InChIKey
VAEOIFAHJWMTKD-NMUVPRMFSA-N
XLogP
-1.5
Polar surface area
328 Ų
H-bond donors
11
H-bond acceptors
12
Formal charge
0

via PubChem

Wikidata facts

Mass
891.4490537720001
Show 3 more facts
isomeric SMILES
C[C@H]([C@@H](C(=O)N[C@@H](CCC(=O)N)C(=O)O)NC(=O)[C@H](Cc1c[nH]c2c1cccc2)NC(=O)[C@@H]3CCCN3C(=O)[C@H](Cc4ccc(cc4)O)NC(=O)[C@H](C(C)C)NC(=O)[C@H](C(C)C)N)O
chemical formula
C₄₄H₆₁N₉O₁₁
canonical SMILES
CC(C)C(N)C(=O)NC(C(=O)NC(Cc1ccc(O)cc1)C(=O)N1CCCC1C(=O)NC(Cc1c[nH]c2ccccc12)C(=O)NC(C(=O)NC(CCC(N)=O)C(=O)O)C(C)O)C(C)C
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Encyclopedic overview

2 sections
Contents
  • See also
  • References

Valorphin, also known as VV-hemorphin-5, is a naturally occurring, endogenous opioid heptapeptide of the hemorphin family with the amino acid sequence H-Val-Val-Tyr-Pro-Trp-Thr-Gln-OH (VVYPWTQ). It is produced in the body via proteolyic cleavage of residues 33-39 of the β-chain of hemoglobin. Valorphin binds preferentially to the μ-opioid receptor and produces effects such as analgesia and self-administration in animals. It also possesses cytotoxic and antiproliferative properties against tumor cells, the mediation of which, because they are reversed by naloxone, appears to be dependent on the opioid receptors.

== See also == Hemorphin

Excerpted from Wikipedia’s “Valorphin” article, available under the CC BY-SA 4.0 licence.

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