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Recombinant Surfactant Protein B (SP-B)

SFTPB; PSPB; SFTB3; SFTP3; SPB; Surfactant Associated Protein B; Pulmonary Surfactant Protein B; 18 kDa pulmonary-surfactant protein; 6 kDa protein

  • Product No.RPB622Ra01
  • Organism SpeciesRattus norvegicus (Rat) Same name, Different species.
  • SourceProkaryotic expression
  • HostE.coli
  • Endotoxin Level<1.0EU per 1µg (determined by the LAL method)
  • Subcellular LocationSecreted, Extracellular matrix
  • Predicted Molecular Mass28.3kDa
  • Accurate Molecular Mass26kDa(Analysis of differences refer to the manual)
  • Residues & TagsArg111~His329 with N-terminal His Tag
  • Buffer FormulationPBS, pH7.4, containing 0.01% SKL, 5% Trehalose.
  • Traits Freeze-dried powder
  • Purity> 97%
  • Isoelectric Point8.3
  • Applications Positive Control; Immunogen; SDS-PAGE; WB.
    If bio-activity of the protein is needed, please check active protein.
  • DownloadInstruction Manual
  • UOM 10µg50µg 200µg 1mg 5mg
  • FOB US$ 179  US$ 448  US$ 896  US$ 2688  US$ 6720 
    For more details, please contact local distributors!

SEQUENCE

USAGE

Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

STORAGE

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

STABILITY

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

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Magazine Citations
Respiratory Physiology & Neurobiology Kinetics of plasma SPB and RAGE during mechanical ventilation in patients undergoing major vascular surgery PubMed: 21736957
American Journal of Rhinology & Allergy Detection of surfactant proteins A, B, C, and D in human nasal mucosa and their regulation in chronic rhinosinusitis with polyps PubMed: 23406594
19 Surfactant protein B and RAGE increases in the plasma during cardiopulmonary bypass: a pilot study PubMed: 20650982
Plos one Staphylococcus aureus and Pseudomonas aeruginosa Express and Secrete Human Surfactant Proteins PubMed: PMC3551896
Plos one The Detection of Surfactant Proteins A, B, C and D in the Human Brain and Their Regulation in Cerebral Infarction, Autoimmune Conditions and Infections of the CNS PubMed: PMC3787032
Cancer Cell. Lung Cancer Signatures in Plasma Based on Proteome Profiling of Mouse Tumor Models PubMed: PMC3406925
Respir Physiol Neurobiol Acute high-altitude exposure reduces lung diffusion: Data from the HIGHCARE Alps project Pubmed: 23619193
PLOS ONE Surfactant-Derived Proteins as Markers of Alveolar Membrane Damage in Heart Failure Pubmed:25514679
Nachweis und Charakterisierung des Oberfl?chenproteins PLUNC (Palate, Lung and Nasal Clone Protein) an der Augenoberfl?che und Bedeutung für das Trockene Auge Opus4:Source
Int J Cardiol Plasma immature form of surfactant protein type B correlates with prognosis in patients with chronic heart failure. A pilot single-center prospective study PubMed: 26310985
Plos One Serum Levels of Surfactant Proteins in Patients with Combined Pulmonary Fibrosis and Emphysema (CPFE) Pubmed:27337142
PLoS One The Cerebral Surfactant System and Its Alteration in HydrocephalicConditions. pubmed:27656877
Frontiers in Aging Neuroscience Correlations of Ventricular Enlargement with Rheologically Active SurfactantProteins in Cerebrospinal Fluid. pubmed:28101052
Frontiers in Aging Neuroscience Correlations of Ventricular Enlargement with Rheologically Active Surfactant Proteins in Cerebrospinal Fluid PMC5209370
Respiratory Physiology & Neurobiology Diving and pulmonary physiology: surfactant binding protein, lung fluid and cardiopulmonary test changes in professional divers pubmed:28467885
Cellular Physiology and Biochemistry Surfactant Protein B Suppresses Lung Cancer Progression by Inhibiting Secretory Phospholipase A2 Activity and Arachidonic Acid Production pubmed:28743125
American Journal of Physiology. Lung Cellular and Molecular Physiology Chronic lung injury and impaired pulmonary function in a mouse model of acid ceramidase deficiency. pubmed:29167126
Respiratory research Effects and molecular mechanisms of intrauterine infection/inflammation on lung development Pubmed:29747649
Respiratory Physiology & Neurobiology  Surfactant proteins changes after acute hemodynamic improvement in patients with advanced chronic heart failure treated with Levosimendan Pubmed:29548887
Lung  Serum Surfactant Protein Levels in Patients Admitted to the Hospital with Acute COPD Exacerbation Pubmed:29445934
American Journal of Physiology Lung Cellular andMolecular Physiology Generation of an alveolar epithelial type II cell line from induced pluripotent stem cells Pubmed: 30211653
Respiratory Research Culture of human alveolar epithelial type II cells by sprouting Pubmed: 30340591
Catalog No. Related products for research use of Rattus norvegicus (Rat) Organism species Applications (RESEARCH USE ONLY!)
RPB622Ra01 Recombinant Surfactant Protein B (SP-B) Positive Control; Immunogen; SDS-PAGE; WB.
PAB622Ra01 Polyclonal Antibody to Surfactant Protein B (SP-B) IHC
MAB622Ra21 Monoclonal Antibody to Surfactant Protein B (SP-B) WB; IHC; ICC; IP.
SEB622Ra ELISA Kit for Surfactant Protein B (SP-B) Enzyme-linked immunosorbent assay for Antigen Detection.
LMB622Ra Multiplex Assay Kit for Surfactant Protein B (SP-B) ,etc. by FLIA (Flow Luminescence Immunoassay) FLIA Kit for Antigen Detection.
KSB622Ra01 ELISA Kit DIY Materials for Surfactant Protein B (SP-B) Main materials for "Do It (ELISA Kit) Yourself".