SRP4869
Placental Lactogen human
recombinant, expressed in E. coli, ≥95% (SDS-PAGE), ≥95% (HPLC)
Synonym(s):
CSA, CSH1, CSH2, CSMT, FLJ75407, PL
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About This Item
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biological source
human
recombinant
expressed in E. coli
Assay
≥95% (HPLC)
≥95% (SDS-PAGE)
form
lyophilized
mol wt
~22.3 kDa
packaging
pkg of 20 μg
storage condition
avoid repeated freeze/thaw cycles
technique(s)
cell based assay: suitable
impurities
endotoxin, tested
NCBI accession no.
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... CSH1(1442)
General description
Human placental lactogen (HPL), also called human chorionic somatomammotropin 1, is a polypeptide placental hormone. Its structure and function is similar to that of growth hormone. The gene encoding this protein is localized on human chromosome 17. Recombinant human placental lactogen is a 22.3kDa protein.
Biochem/physiol Actions
Human placental lactogen (HPL) modifies the metabolic state of the mother during pregnancy to facilitate the energy supply, glucose supply and growth of the fetus. Studies show that targeted expression of this protein in transgenic mice lead to an increase in proliferation of β-cells.
Physical form
Sterile filtered and lyophilized with no additives.
Reconstitution
Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in water to a concentration of 0.1-1.0 mg/mL. This solution can then be diluted into other aqueous buffers.
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Ginkgolic acid and anacardic acid are specific covalent inhibitors of SARS-CoV-2 cysteine proteases.
Zinuo Chen et al.
Cell & bioscience, 11(1), 45-45 (2021-03-01)
In the urgent campaign to develop therapeutics against SARS-CoV-2, natural products have been an important source of new lead compounds. We herein identified two natural products, ginkgolic acid and anacardic acid, as inhibitors using a high-throughput screen targeting the SARS-CoV-2
A study of association between common variation in the growth hormone-chorionic somatomammotropin hormone gene cluster and adult fasting insulin in a UK Caucasian population.
Freathy RM
Journal of Negative Results in Biomedicine, 5, 18-18 (2006)
Meltem Muftuoglu et al.
Nucleic acids research, 34(1), 295-304 (2006-01-18)
Cockayne syndrome (CS) is a rare inherited human genetic disorder characterized by UV sensitivity, severe neurological abnormalities and prageroid symptoms. The CS complementation group B (CSB) protein is involved in UV-induced transcription coupled repair (TCR), base excision repair and general
Placental lactogen is expressed but is not translated into protein in breast cancer.
Tuttle TR
PLoS ONE, 9(1), e87325-e87325 (2014)
Jaeyong Cho et al.
Biochemical and biophysical research communications, 579, 110-115 (2021-10-02)
The liver increases its size during pregnancy to adapt to metabolic demand associated with pregnancy. Our previous study showed that proliferation of maternal hepatocytes are increased during pregnancy in mice and that estradiol (E2) is one of the candidate hormones
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