05-23-0600

Substance P

Neuropeptide found in high concentrations in the gut.

• Synonym(s): Substance P, Neurokinin P, RPKPQQFFGLM, SP
• Empirical Formula (Hill Notation): C₆₃H₉₈N₁₈O₁₃S
• CAS Number: 33507-63-0
• Molecular Weight: 1347.63
• UNSPSC Code: 12352202
• NACRES: NA.51

Properties

• Quality Level: 100
• Assay: ≥96% (HPLC)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; desiccated (hygroscopic)
• color: white
• solubility: 5% acetic acid: 1 mg/mL
• shipped in: ambient
• storage temp.: −20°C
• InChI: 1S/C63H98N18O13S/c1-37(2)33-45(57(89)74-41(53(68)85)27-32-95-3)73-52(84)36-72-54(86)46(34-38-15-6-4-7-16-38)78-58(90)47(35-39-17-8-5-9-18-39)79-56(88)42(23-25-50(66)82)75-55(87)43(24-26-51(67)83)76-59(91)49-22-14-31-81(49)62(94)44(20-10-11-28-64)77-60(92)48-21-13-30-80(48)61(93)40(65)19-12-29-71-63(69)70/h4-9,15-18,37,40-49H,10-14,19-36,64-65H2,1-3H3,(H2,66,82)(H2,67,83)(H2,68,85)(H,72,86)(H,73,84)(H,74,89)(H,75,87)(H,76,91)(H,77,92)(H,78,90)(H,79,88)(H4,69,70,71)/t40-,41-,42-,43-,44-,45-,46-,47-,48-,49-/m0/s1
• InChI key: ADNPLDHMAVUMIW-CUZNLEPHSA-N

Description

General description

Substance P (SP) is an 11-amino acid neuropeptide belonging to the tachykinin (TAC) family of neuropeptides. It is encoded by the TAC1 gene in the central nervous system (CNS), the peripheral nervous system, and immune cells. Moreover, it serves essential functions in inflammation, angiogenesis, and wound healing. It is also found in high concentrations in the gut. When released from afferent nerves, it causes a neurogenic inflammatory response, including mast cell degranulation. It is known to induce Ca2+ mobilization and reported to activate Goα, Gq/11α, and Gsα subunits in CHO cells via activation of substance P receptors. Also reported to induce superoxide production in neutrophils.

Application

Substance P (SP) has been used to enhance the lipid accumulation in 3T3‑L1 cells as they undergo differentiation into adipocytes in the presence of elevated glucose levels.

Biochem/physiol Actions

Cell permeable: no

Primary Target
Substance P receptors

Product does not compete with ATP.

Reversible: no

Packaging

Yes

Warning

Toxicity: Standard Handling (A)

Sequence

H-Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH₂

Physical form

Supplied as a trifluoroacetate salt.

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Roush, E.D., and Kwatra, M.M. 1998. FEBS Lett. 428, 291.
Chiwakata, C.B., et al. 1996. Infect. Immun. 64, 5106.
Tanabe, T., et al. 1996. Eur. J. Pharmacol. 299, 187.
Heath, M.J., et al. 1994. J. Neurophysiol. 72, 1192.
Zhu, J., et al. 1994. Eur. J. Pharmacol. 268, 279.
Garland, A.M., et al. 1993. Soc. Neurosci. 19, Abstract 104.6.
Wei, J.Y., et al. 1993. Soc. Neurosci. 19, Abstract 136.14.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable