CDB15:0000772 HSP90B1 — LRP1

Experimentally validated in Mouse; Orthology-inferred in Human, Rat, Frog, Zebrafish, Chicken, Macaque, Pig, Dog, Cow, Chimp, Horse, Marmoset, Sheep

Title

Journal:; Year Published:

Abstract

CD91: a receptor for heat shock protein gp96.

Nature immunology, 2000; PubMed, Mus Musculus Hsp90b1 — Mus Musculus Lrp1

ABSTRACT: Antigen presenting cells (APCs) can take up exogenous antigenic peptides chaperoned by heat shock protein gp96 and re-present them through the endogenous pathway on their major histocompatibility class I molecules. The high efficiency of this process has been attributed previously to a receptor for gp96 on APCs. The CD91 molecule (also called alpha 2-macroglobulin receptor or the low density lipoprotein-related protein) is shown here to be a cell surface receptor for the heat shock protein gp96. CD91 binds gp96 directly, rather than through another ligand for CD91. The previously known CD91 ligand, alpha 2-macroglobulin, inhibits re-presentation of gp96-chaperoned antigenic peptides by macrophages, as do antibodies to CD91. As gp96 is exclusively intracellular and is released as a result of necrotic but not apoptotic cell death, we propose that CD91 acts as a sensor for necrotic cell death.

CD91 is a common receptor for heat shock proteins gp96, hsp90, hsp70, and calreticulin.

Immunity, 2001; PubMed, Mus Musculus Hsp90b1 — Mus Musculus Lrp1

ABSTRACT: Complexes of the heat shock protein gp96 and antigenic peptides are taken up by antigen-presenting cells and presented by MHC class I molecules. In order to explain the unusual efficiency of this process, the uptake of gp96 had been postulated to occur through a receptor, identified recently as CD91. We show here that complexes of peptides with heat shock proteins hsp90, calreticulin, and hsp70 are also taken up by macrophages and dendritic cells and re-presented by MHC class I molecules. All heat shock proteins utilize the CD91 receptor, even though some of the proteins have no homology with each other. Postuptake processing of gp96-chaperoned peptides requires proteasomes and the transporters associated with antigen processing, utilizing the classical endogenous antigen presentation pathway.

Basic Information on HSP90B1

Ligand Name: heat shock protein 90 beta family member 1

Other Symbols: TRA1, GP96, GRP94

Ligand Location: cell membrane based on perplexity

HGNC Gene Symbol Report: HSP90B1

GeneCards: HSP90B1

HGNC Gene Group: MicroRNA host genes, Heat shock proteins

Functional Annotations for HSP90B1

Gene Ontologies: PAN-GO, AmiGO 2

Expression Profile: Human Protein Atlas (RNA and protein), Human Cell Atlas (RNA), GEPIA cancer vs normal (RNA), GeneCards (RNA and protein)

Disease Annotations: MalaCards, OMIM, Open Targets Platform, DISEASES (text mining), AI summary (LLM)

Interactions with other Receptors for HSP90B1

HSP90B1 — TLR2 ・ HSP90B1 — TLR4 ・ HSP90B1 — LY96 ・ HSP90B1 — SCARF1

Basic Information on LRP1

Receptor Name: LDL receptor related protein 1

Other Symbols: APR, A2MR, LRP, CD91, LRP1A, APOER, IGFBP3R1, IGFBP-3R

Receptor Location: cell membrane based on hpa, perplexity, uniprot

HGNC Gene Symbol Report: LRP1

GeneCards: LRP1

HGNC Gene Group: MicroRNA host genes, CD molecules, Low density lipoprotein receptors

Functional Annotations for LRP1

Gene Ontologies: PAN-GO, AmiGO 2

Expression Profile: Human Protein Atlas (RNA and protein), Human Cell Atlas (RNA), GEPIA cancer vs normal (RNA), GeneCards (RNA and protein)

Disease Annotations: MalaCards, OMIM, Open Targets Platform, DISEASES (text mining), AI summary (LLM)

Interactions with other Ligands for LRP1

A2M — LRP1 ・ APOE — LRP1 ・ APP — LRP1 ・ C1QB — LRP1 ・ C3 — LRP1 ・ C4BPA — LRP1 ・ CALR — LRP1 ・ CCN2 — LRP1 ・ F8 — LRP1 ・ F9 — LRP1 ・ FCN2 — LRP1 ・ LIPC — LRP1 ・ LPL — LRP1 ・ LRPAP1 — LRP1 ・ LTF — LRP1 ・ MDK — LRP1 ・ MMP13 — LRP1 ・ MMP9 — LRP1 ・ PDGFB — LRP1 ・ PLAT — LRP1 ・ PLAU — LRP1 ・ PSAP — LRP1 ・ SERPINA1 — LRP1 ・ SERPINC1 — LRP1 ・ SERPINE1 — LRP1 ・ SERPINE2 — LRP1 ・ SERPING1 — LRP1 ・ TFPI — LRP1 ・ THBS1 — LRP1 ・ ADAMTS1 — LRP1 ・ APOC3 — LRP1 ・ C1QA — LRP1 ・ CCN1 — LRP1 ・ CEMIP — LRP1 ・ HGFAC — LRP1 ・ HMGB1 — LRP1 ・ HMGB2 — LRP1 ・ HPX — LRP1 ・ HSP90AA1 — LRP1 ・ HSPA1A — LRP1 ・ HSPA4 — LRP1 ・ IGFBP7 — LRP1 ・ LIF — LRP1 ・ MBL2 — LRP1 ・ MMP1 — LRP1 ・ PF4 — LRP1 ・ PLAUR — LRP1 ・ SERPIND1 — LRP1 ・ SFTPA1 — LRP1 ・ SFTPD — LRP1 ・ SLIT2 — LRP1 ・ SPARC — LRP1 ・ TIMP1 — LRP1 ・ TIMP3 — LRP1 ・ TNFAIP6 — LRP1 ・ VWF — LRP1