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placental lactogen Active Protein | CSH1 active protein

Bovine placental lactogen

Gene Names
CSH1; PL; CSA; CS-1; CSMT; hCS-1; hCS-A
Purity
The purity of bovine recombinant placental lactogen is greater than 99.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by reducing and non-reducing SDS-PAGE gel.
Synonyms
placental lactogen; Bovine placental lactogen; CSH1 active protein
Ordering
For Research Use Only!
Host
E Coli
Purity/Purification
The purity of bovine recombinant placental lactogen is greater than 99.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by reducing and non-reducing SDS-PAGE gel.
Form/Format
White lyophilized powder.
Sequence
The sequence of the first six N-terminal amino acids of bovine recombinant placental lactogen was determined and was found to be Ala-Glu-Asp-Tyr-Ala-Pro.
Sequence Length
217
Solubility
It is recommended to reconstitute the lyophilized bovine recombinant placental lactogen in sterile water or 0.4% NaHCO3 adjusted tp pH 8-9, not less than 100ug/ml, which can then be further diluted to other aqueous solutions, preferably in presence of carrier protein.
Protein Content
Protein quantitation of bovine recombinant placental lactogen was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.85 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
Dimers and Aggregates
The purified bovine recombinant placental lactogen (23K) consists of > 99% monomers as determined by gel-filtration chromatography.
Endotoxin
Less than 0.1 ng/ug (IEU/ug) of bovine recombinant placental lactogen
Formulation
Bovine recombinant placental lactogen was lyophilized from a concentrated (1mg/ml) solution with 0.02-0.03% NaHCO3.
Biological Activity
bovine recombinant placental lactogen is fully biologically active as evidenced by inducing proliferation of Nb2 cells.
Preparation and Storage
Lyophilized bovine recombinant placental lactogen although stable at room temperature for several weeks, should be stored desiccated below -18 degree C. Upon reconstitution of bovine recombinant placental lactogen at > 0.1 mg/ml and up to 4 mg/ml and filter sterilization bovine recombinant placental lactogen can be stored at 4 degree C for several weeks.
Related Product Information for CSH1 active protein
Bovine recombinant placental lactogen, one polypeptide chain containing 199 amino and an additional Ala at N-terminus acids and having a molecular mass of ~ 23 kDa, was purified by proprietary chromatographic techniques. Bovine recombinant placental lactogen is also capable of activating human and other heterologous growth hormone receptors but not ruminant GH receptors.
Product Categories/Family for CSH1 active protein

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
UniProt Accession #
Molecular Weight
25,020 Da
NCBI Official Full Name
placental lactogen
NCBI Official Synonym Full Names
chorionic somatomammotropin hormone 1 (placental lactogen)
NCBI Official Symbol
CSH1
NCBI Official Synonym Symbols
PL; CSA; CS-1; CSMT; hCS-1; hCS-A
NCBI Protein Information
chorionic somatomammotropin hormone 1; choriomammotropin; chorionic somatomammotropin A; chorionic somatomammotropin-1; placental lactogen
UniProt Protein Name
Chorionic somatomammotropin hormone 1
UniProt Gene Name
CSH1
UniProt Synonym Gene Names
Choriomammotropin; PL
UniProt Entry Name
CSH1_HUMAN

NCBI Description

The protein encoded by this gene is a member of the somatotropin/prolactin family of hormones and plays an important role in growth control. The gene is located at the growth hormone locus on chromosome 17 along with four other related genes in the same transcriptional orientation; an arrangement which is thought to have evolved by a series of gene duplications. Although the five genes share a remarkably high degree of sequence identity, they are expressed selectively in different tissues. Alternative splicing generates additional isoforms of each of the five growth hormones, leading to further diversity and potential for specialization. This particular family member is expressed mainly in the placenta and utilizes multiple transcription initiation sites. Expression of the identical mature proteins for chorionic somatomammotropin hormones 1 and 2 is upregulated during development, although the ratio of 1 to 2 increases by term. Mutations in this gene result in placental lactogen deficiency and Silver-Russell syndrome. [provided by RefSeq, Jul 2008]

Uniprot Description

CSH1: Produced only during pregnancy and is involved in stimulating lactation, fetal growth and metabolism. Does not interact with GHR but only activates PRLR through zinc-induced dimerization. Belongs to the somatotropin/prolactin family.

Protein type: Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 17q24.2

Cellular Component: extracellular region

Molecular Function: hormone activity; metal ion binding

Research Articles on CSH1

Similar Products

Product Notes

The CSH1 csh1 (Catalog #AAA400055) is an Active Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. The amino acid sequence is listed below: The sequence of the first six N-terminal amino acids of bovine recombinan t placental lactogen was determined and was found to be Ala-Glu-As p-Tyr-Ala- Pro. It is sometimes possible for the material contained within the vial of "placental lactogen, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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