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Anti-Hsp105/HSPH1 Antibody Picoband® (monoclonal, 3D10) Fluoro647 Conjugated

Product Specifications

Background

HSP105 (HEAT-SHOCK 105/110-KD PROTEIN 1), also called HSPH1 or HSP110, is a protein that in humans is encoded by the HSPH1 gene. Immunohistochemical analysis localizes HSP105 mainly in the cytoplasm. Database analysis indicates that both HSP105 isoforms are highly conserved during evolution. By analysis of radiation hybrids and human/rodent hybrid cell lines, the HSPH1 gene is mapped to chromosome 13. Both HSP105-alpha and HSP105-beta are upregulated in HeLa cells exposed to heat shock. HSP105-alpha, but not HSP105-beta, is also upregulate in response to other cell stresses. Following heat shock, HSP105 relocalizes from a cytoplasmic to perinuclear position. Besides, HSP110 may thus constitute a major determinant for both prognosis and treatment response in colorectal cancer.

Synonyms

Heat shock protein 105 kDa; Antigen NY-CO-25; Heat shock 110 kDa protein; HSPH1; HSP105; HSP110; KIAA0201

Gene Name

HSPH1

Gene ID

10808

UniProt

Q92598

Host

Mouse

Reactivity

Human

Cross Reactivity

No cross-reactivity with other proteins.

Immunogen

E. coli-derived human Hsp105 recombinant protein (Position: Y653-D858) .

Clonality

Monoclonal

Clone

Clone: 3D10

Tissue Specificity

Highly expressed in testis. Present at lower levels in most brain regions, except cerebellum. Overexpressed in cancer cells.

Applications

Flow Cytometry

Field of Research

Cell Adhesion Proteins, Epigenetics and Nuclear Signaling, Integrins, Mediator Complex, Neuroscience, Receptors, Transcription

Purification

Immunogen affinity purified.

Form

Liquid

Function

Acts as a nucleotide-exchange factor (NEF) for chaperone proteins HSPA1A and HSPA1B, promoting the release of ADP from HSPA1A/B thereby triggering client/substrate protein release. Prevents the aggregation of denatured proteins in cells under severe stress, on which the ATP levels decrease markedly. Inhibits HSPA8/HSC70 ATPase and chaperone activities.

References & Citations

1. Ishihara, K., Yasuda, K., Hatayama, T. Molecular cloning, expression and localization of human 105 kDa heat shock protein, hsp105. Biochim. Biophys. Acta 1444: 138-142, 1999. 2. Dorard, C., de Thonel, A., Collura, A., Marisa, L., Svrcek, M., Lagrange, A., Jego, G., Wanherdrick, K., Joly, A. L., Buhard, O., Gobbo, J., Penard-Lacronique, V., and 16 others. Expression of a mutant HSP110 sensitizes colorectal cancer cells to chemotherapy and improves disease prognosis. Nature Med. 17: 1283-1289, 2011.

Storage Conditions

At -20 ̊C for one year from date of receipt. Avoid repeated freezing and thawing. Protect from light.

Specificity

No cross reactivity with other proteins.

Applications Notes

6

Gene Name Synonym

Heat shock 105kDa/110kDa protein 1

Subcellular Location

Cytoplasm.

Isotype

Mouse IgG1

Contents

Each vial contains 50% glycerol, 0.9% NaCl, 0.2% Na2HPO4, 0.02% NaN3.

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