Recombinant Human L-Lactate Dehydrogenase B Chain (LDHB) Protein (His)

Name: Recombinant Human L-Lactate Dehydrogenase B Chain (LDHB) Protein (His)
Brand: Beta LifeScience
SKU: BLC-10686P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

Product Overview

Description	Recombinant Human L-Lactate Dehydrogenase B Chain (LDHB) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P07195
Target Symbol	LDHB
Synonyms	Epididymis secretory protein Li 281; HEL S 281; L lactate dehydrogenase B chain; L-lactate dehydrogenase B chain; Lactate Dehydrogenase B; Lactate dehydrogenase H chain; LDH B ; LDH H; LDH heart subunit; LDH-B; LDH-H; LDHB; LDHB_HUMAN; LDHBD; LDHH; Renal carcinoma antigen NY REN 46; Renal carcinoma antigen NY-REN-46; TRG-5; TRG5
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-6His
Target Protein Sequence	ATLKEKLIAPVAEEEATVPNNKITVVGVGQVGMACAISILGKSLADELALVDVLEDKLKGEMMDLQHGSLFLQTPKIVADKDYSVTANSKIVVVTAGVRQQEGESRLNLVQRNVNVFKFIIPQIVKYSPDCIIIVVSNPVDILTYVTWKLSGLPKHRVIGSGCNLDSARFRYLMAEKLGIHPSSCHGWILGEHGDSSVAVWSGVNVAGVSLQELNPEMGTDNDSENWKEVHKMVVESAYEVIKLKGYTNWAIGLSVADLIESMLKNLSRIHPVSTMVKGMYGIENEVFLSLPCILNARGLTSVINQKLKDDEVAQLKKSADTLWDIQKDLKDL
Expression Range	2-334aa
Protein Length	Full Length of Mature Protein
Mol. Weight	40.5kDa
Research Area	Metabolism
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

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: Hs.446149
Associated Diseases	Lactate dehydrogenase B deficiency (LDHBD)

Gene Functions References

High LDHB expression is significantly associated with the level of serum LDH and better clinical outcomes in lung squamous cell carcinoma 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.