Skip to main content
Research use only. Not for human or veterinary use. €200 minimum order
For research use only. Products sold by Peptide Shop are intended for in-vitro laboratory research only. Not for human or veterinary diagnostic, therapeutic, cosmetic or consumption purposes.
PKI (6-22) amide — 1 mg, ≥98 % HPLC product vial
Cell Signaling

PKI (6-22) amide — 1 mg, ≥98 % HPLC

>- PKI (6-22) amide, the most widely cited specific PKA inhibitor peptide for kinase-pathway research. ≥98% HPLC. RUO.

≥ 98% COA supported RUO
CAS
121932-06-7
Molecular weight
2222.6 g/mol
Storage
-20°C lyophilised, desiccated, protected from light (research only)
Package sizes
1 × 1 mg vial

Description

PKI (6-22) amide — 1 mg, ≥98 % HPLC — research overview

PKI (6-22) amide is the active fragment of the heat-stable protein-kinase inhibitor (PKI), a highly specific competitive inhibitor of cAMP-dependent protein kinase (PKA) catalytic subunit. It is the standard reference inhibitor in kinase-pathway research.

Peptide Shop supplies PKI (6-22) amide (1 × 1 mg vial) as a sealed research material with lot-level documentation. This product is supplied for in-vitro laboratory research only and is not intended for human use, veterinary use, therapy, diagnosis, cosmetic application or consumption.

Research applications

  • PKA inhibition in in-vitro kinase assays (Ki ≈ 1–3 nM)
  • cAMP / PKA signalling pathway dissection
  • Permeabilised-cell PKA inhibition research
  • Reference control for PKA-selective small-molecule screens

Sequence and analytical data

C-terminal amidation and identity confirmed by ESI-MS. Highly soluble in aqueous buffers.

Storage and handling

Store lyophilised at -20 °C. Aqueous stock solutions are stable at -80 °C; avoid repeated freeze-thaw.

Documentation

A lot-specific Certificate of Analysis is available in EN, DE, FR and ES from the product detail page after dispatch. The CoA reports HPLC purity, identity confirmation, appearance, and storage and handling guidance for the dispatched lot.

Sequence & data

Product IDpeptide-pki-6-22-amide
CAS121932-06-7
Molecular weight2222.6 g/mol
Purity≥ 98%
SequenceTYADFIASGRTGRRNAI-NH2

Storage & handling

-20°C lyophilised, desiccated, protected from light (research only)

Keep lyophilised material sealed and protected from moisture. Reconstituted materials should be handled according to validated laboratory protocols and disposed of as research waste.

Certificate of analysis

Batch-specific COA documentation is supplied according to the COA policy and may include HPLC purity, identity and lot information where available.

Other languages

FAQs

How specific is PKI (6-22) for PKA?

PKI (6-22) amide is one of the most selective protein-kinase inhibitors known, with sub-nanomolar Ki for PKA catalytic subunit and negligible activity on other AGC-family kinases at typical assay concentrations.

Is this material cell-permeable?

No. For cell-based research use the myristoylated PKI (14-22) amide variant (also catalogued).

Recommended assay concentration?

In-vitro PKA inhibition typically uses 0.1–10 µM; permeabilised-cell research uses 1–10 µM.