SRP3146

Sigma-Aldrich

Prokineticin-2 human

recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

Synonym(s):
PK2, Protein Bv8 homolog, PROK2
NACRES:
NA.32
Pricing and availability is not currently available.

biological source

human

recombinant

expressed in E. coli

assay

≥98% (HPLC)
≥98% (SDS-PAGE)

form

lyophilized

mol wt

8.8 kDa

packaging

pkg of 20 μg

application(s)

cell culture | mammalian: suitable

impurities

<0.1 EU/μg endotoxin, tested

color

white

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... PROK2(60675)

General description

Prokineticin-2 (PK2) is a cysteine-rich secreted protein that is expressed in the testis and in lower levels of the small intestine. PK2 regulates various biological functions including gastrointestinal motility, angiogenesis and circadiam rhythms. It is closely related to EG-VEGF (Prokineticin-1) and binds to two orphan B-protein-coupled receptors termed PK-R1 and PK-R2. Recombinant human Prokineticin-2 is an 8.8 kDa protein consisting of 81 amino acid residues and ten cysteine residues that potentially form five intra-molecular disulfide bonds.It also contains completely conserved N-terminal hexapeptide sequence that is involved in biological activity. PK2 is encoded by the gene mapped to human chromosome 3p13.

Biochem/physiol Actions

Prokineticin-2 (PK2) plays a vital role in regulation of various biological functions, such as gastrointestinal motility, angiogenesis and circadian rhythms. It is closely related to EG-VEGF (endocrine gland-derived vascular endothelial growth factor)/prokineticin-1 (PK1). PK1 and PK2 exert their function by interacting with two G protein-coupled receptors PKR1 and PKR2, respectively. PK2 is a candidate gene for the pathogenesis of mood disorders.

Sequence

AVITGACDKD SQCGGGMCCA VSIWVKSIRI CTPMGKLGDS CHPLTRKVPF FGRRMHHTCP CLPGLACLRT SFNRFICLAQ K

Physical form

Lyophilized with no additives.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
The prokineticins: a novel pair of regulatory peptides.
Zhou Q Y.
Molecular Interventions, 6(6), 330-330 (2006)
Prokineticin 2 and circadian clock output.
Zhou Q Y and Cheng M Y
FEBS Journal, 272(22), 5703-5709 (2005)
Clayton M Bullock et al.
Molecular pharmacology, 65(3), 582-588 (2004-02-24)
Prokineticins are cysteine-rich secreted proteins that regulate diverse biological processes, including gastrointestinal motility, angiogenesis, and circadian rhythms. Two closely related G protein-coupled receptors that mediate signal transduction of prokineticins have recently been cloned. The structural elements required for prokineticins' bioactivities...
Takatoshi Soga et al.
Biochimica et biophysica acta, 1579(2-3), 173-179 (2002-11-13)
Recent studies have identified two novel biofunctional proteins, termed prokineticin 1/EG-VEGF and prokineticin 2, which were mammalian homologues of mamba MIT1 and frog Bv8. Prokineticins have been demonstrated to exert their physiological functions through G-protein coupled receptors (GPCRs). In this...
Possible association of prokineticin 2 receptor gene (PROKR2) with mood disorders in the Japanese population.
Kishi T, et al.
Neuromolecular Medicine, 11(2), 114-122 (2009)

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