Recombinant Human Heat Shock Factor-Binding Protein 1 (HSBP1) Protein (GST)

Name: Recombinant Human Heat Shock Factor-Binding Protein 1 (HSBP1) Protein (GST)
Brand: Beta LifeScience
SKU: BLC-08538P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Heat Shock Factor-Binding Protein 1 (HSBP1) Protein (GST) is produced by our E.coli expression system. This is a protein fragment.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	O75506
Target Symbol	HSBP1
Synonyms	Heat shock factor binding protein 1; Heat shock factor-binding protein 1; HSBP1; HSBP1_HUMAN; HSF1BP; Nasopharyngeal carcinoma associated antigen 13; Nasopharyngeal carcinoma-associated antigen 13; NPC A 13 ; NPC-A-13; NPCA 13
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-GST
Target Protein Sequence	MAETDPKTVQDLTSVVQTLLQQMQDKFQTMSDQIIGRIDDMSSRIDDLEKNIADLMTQAGVEELESENKIPATQK
Expression Range	1-75aa
Protein Length	Partial
Mol. Weight	35.5kDa
Research Area	Epigenetics And Nuclear Signaling
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

Target Function	Negative regulator of the heat shock response. Negatively affects HSF1 DNA-binding activity. May have a role in the suppression of the activation of the stress response during the aging process.
Subcellular Location	Nucleus.
Protein Families	HSBP1 family
Database References	HGNC: 5203 OMIM: 604553 KEGG: hsa:3281 STRING: 9606.ENSP00000392896 UniGene: PMID: 28828227 Results presented here show that acquisition of a positive charge in HSBP1, either by protonation of His124 or its substitution by lysine, reduces the stability of the dimer interface of the alpha-crystallin domain, increases oligomeric size, and modestly increases chaperone activity. PMID: 28332148 HSBP1 is crucial for regulating resistance to radiotherapy of oral squamous epithelial carcinoma cells by inducing stem-like status. PMID: 24816843 HspBP1 inhibited the cytotoxic activity of the Tag7-Hsp70 complex secreted by lymphocytes. HspBP1 PMID: 21247889 This study reports the crystal structure of a degradation-resistant fragment of HSBP1. A continuous, long-helix conformation of HSBP1 assembles into a coiled-coil three-helix bundle and subsequently into an elongated, symmetrical hexamer. PMID: 18767159 HSBP likely mediates its function through its trimerization domain. PMID: 11679589

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.