Recombinant Fruit fly Accessory gland-specific peptide 70A (SP)

Product Specifications

Product Name Alternative

Paragonial peptide B Sex peptide Short name: SP

Abbreviation

Recombinant Drosophila melanogaster SP protein

Gene Name

UniProt

P05623

Expression Region

20-55aa

Organism

Drosophila melanogaster (Fruit fly)

Target Sequence

WEWPWNRKPTKFPIPSPNPRDKWCRLNLGPAWGGRC

Tag

Tag-Free

Type

Developed Protein

Source

Yeast

Field of Research

Others

Relevance

Male seminal protein which triggers short- and long-term post-mating behavioral responses (PMR) in female Drosophila (PubMed:3135120, PubMed:19249273, PubMed:20308537, PubMed:19793753, PubMed:15694303, PubMed:24089336) . Binds initially to sperm where it is later cleaved to release an active peptide within the female reproductive tract. Signals via the sex peptide receptor (SPR) in female flies; may also act via other receptors (PubMed:20458515, PubMed:20308537, PubMed:24089336) . Moderates the activity of distinct neuronal circuitries in the female genital tract to promote specific PMRs including: enhanced ovulation, increased egg laying rate, increased feeding/foraging rate, induced antimicrobial peptide synthesis, reduced mating receptivity, reduced day-time sleep and reduced lifespan in multiple mated females (PubMed:3135120, PubMed:15694303, PubMed:19249273, PubMed:19793753, PubMed:24089336) .

Endotoxin

Not test

Purity

Greater than 90% as determined by SDS-PAGE.

Activity

Not Test

Form

Liquid or Lyophilized powder

Buffer

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Function

Male seminal protein which triggers short- and long-term post-mating behavioral responses (PMR) in female Drosophila

Molecular Weight

4.3 kDa

References & Citations

"Population genetics of accessory gland proteins and sexual behavior in Drosophila melanogaster populations from Evolution Canyon."Panhuis T.M., Swanson W.J., Nunney L.Evolution 57:2785-2791 (2003)

Storage Conditions

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.