Recombinant Human LDH-B Protein (N-6His)

Name: Recombinant Human LDH-B Protein (N-6His)
Brand: Beta LifeScience
SKU: BL-1289NP
Availability: InStock

BL-1289NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human L-Lactate Dehydrogenase B Chain is produced by our E.coli expression system and the target gene encoding Met1-Leu334 is expressed with a 6His tag at the N-terminus.
Accession	P07195
Synonym	L-lactate Dehydrogenase B Chain; LDH-B; LDH Heart Subunit; LDH-H; Renal Carcinoma Antigen NY-REN-46; LDHB
Gene Background	L-Lactate Dehydrogenase B Chain (LDH-B) is a member of the lactate dehydrogenase family that consists of three members, LDH-A, LDH-B and LDH-C; members of this family function as powerful markers for germ cell tumors. LDH-B is an oxidoreductase that catalyzes the interconversion of pyruvate and lactate with concomitant interconversion of NADH and NAD+. It converts pyruvate to lactate when oxygen is absent or in short supply and it performs the reverse reaction during the Cori cycle in the liver. It is also called Hydroxybutyrate Dehydrogenase (HBD) due to its ability to catalyze the oxidation of hydroxybutyrate.
Molecular Mass	38.8 KDa
Apmol Mass	37 KDa, reducing conditions
Formulation	Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 150mM NaCl, pH 8.0.
Endotoxin	Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity	Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Not tested
Reconstitution
Storage	Store at ≤-70°C, stable for 6 months after receipt. Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.
Shipping	The product is shipped on dry ice/polar packs. Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Subcellular Location	Cytoplasm. Mitochondrion inner membrane; Peripheral membrane protein.
Protein Families	LDH/MDH superfamily, LDH family
Database References	HGNC: 6541 OMIM: 150100 KEGG: hsa:3945 STRING: 9606.ENSP00000229319 UniGene: PMID: 28756978 this study shows that low base line lactate dehydrogenase is linked with a better tumor response, and that prolonged overall survival and progression-free survival are observed for patients under ipilimumab treatment with no increase in lactate dehydrogenase PMID: 27485076 our study examines the inclusion of salivary LDH as potential diagnostic parameter and therapeutic index in Oral squamous cell carcinoma PMID: 26577856 addition of exogenous lactic acid to growth media was sufficient to induce cell death that could be inhibited by the expression of LDHB. the results suggest that lactate dehydrogenase is a general suppressor of programmed cell death in yeast. PMID: 26032856 The aim of this study was to demonstrate the effects of 6-week low-intensity training on changes in indicators of aerobic capacity and on HSPA1A, HSPB1, and LDHb expression in white blood cells in high level rowers. PMID: 26214432 Lactate dehydrogenase B is associated with the response to neoadjuvant chemotherapy in oral squamous cell carcinoma. PMID: 25973606 The readthrough-extended lactate dehydrogenase subunit LDHBx can also co-import LDHA, the other LDH subunit, into peroxisomes. PMID: 25247702 We were able to provide evidence that methylation of HLTF and especially HPP1 detected in serum is strongly correlated with cell death in CRC using LDH as surrogate marker PMID: 24708595 This meta-analysis shows that high serum LDH level is obviously associated with lower overall survival rate in patients with osteosarcoma, and it is an effective biomarker of prognosis. PMID: 24682390 These observations support prospective clinical evaluation of LDHB as a predictive marker of response for patients with breast cancer receiving neoadjuvant chemotherapy. PMID: 23697991 This study identifies LDHB as a regulator of cell proliferation in a subset of lung adenocarcinoma and may provide a novel therapeutic approach for treating lung cancer PMID: 23224736 LDH concentrations in nasopharyngeal secretions are positively associated with acute otitis media risk. PMID: 23202721 Loss of LDH-B expression is an early and frequent event in human breast cancer occurring due to promoter methylation, and is likely to contribute to an enhanced glycolysis of cancer cells under hypoxia. PMID: 23437403 ata indicate that serum lactic dehydrogenase (S-LDH) appears to be a significant independent prognostic index in patients with metastatic nasopharyngeal carcinoma (NPC). PMID: 23266049 Patients with severe vaso-occlusive crisis were more frequently males, who also had higher white blood cell (WBC) count, procalcitonin (PCT), and lactate dehydrogenase (LDH) levels. PMID: 22892192 Data reveal that LDHB is upregulated and required only in certain cancer genotypes. PMID: 23139210 results indicate that histone deacetylase inhibitors upregulate miRNAs, at least some of which act as tumor suppressors. lactate dehydrogenase B, which is regulated by the tumor suppressive miR-375, may therefore act as an oncogene in esophageal squamous cell carcinoma. PMID: 22752059 Serum lactate dehydrogenase is a prognostic and predictive biomarker for survival benefit conferred by TORC1 inhibition in poor-risk renal cell carcinoma. PMID: 22891270 Data indicate that serum lactate dehydrogenase (LDH) seemed able to predict clinical outcome for hepatocellular carcinoma (HCC) patients undergoing hepatocellular carcinoma (HCC). PMID: 22461886 The significant elevation in serum CK [creatine kinase ]and LDH [L-Lactate Dehydrogenase ] activities indicates that these can be used as parameters for screening hypothyroid patients but not hyperthyroid patients. PMID: 22248949 results confirmed the prognostic roles of LDH-B in urinary bladder urothelial carcinoma. PMID: 22027740 Results suggest that lactate dehydrogenase B suppression plays an important role in triggering or maintaining the mitochondrial defects and then contributes to cancer cell invasiveness by inducing claudin-1 protein. PMID: 21356207 Elevated serum LDH isoenzymes and AST indicate a disturbance (of uncertain clinical significance) within multiple extraosseous tissues when there is CLCN7 deficiency. PMID: 20499337 findings offer proof of concept for targeting LDHB as a therapeutic strategy in cancers driven by aberrant activation of the RTK-PI3K-AKT-mTOR signaling cascade PMID: 21199794 S100B and LDH are not expressed in sentinel node progression of melanoma PMID: 20592382 LDHB was elevated in idiopathic myelofibrosis. This isoenzymatic pattern could be expression of a metabolic adaptation. PMID: 17178662 MYC, LDHB, and CCNB1 may have roles in progression of medulloblastoma PMID: 18593994

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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Recombinant Human LDH-B Protein (N-6His)

Recombinant Human LDH-B Protein (N-6His)

Product Overview

Target Details

FAQs