PMC:7352545 / 57848-60288 JSONTXT 10 Projects

Annnotations TAB TSV DIC JSON TextAE

Id Subject Object Predicate Lexical cue
T558 0-6 Sentence denotes 6.3.4.
T559 7-76 Sentence denotes Membrane-Associated 78-kDa Glucose-Regulated Protein (GRP78) or HSPA5
T560 77-301 Sentence denotes MERS-CoV S glycoprotein also recognizes a 78-kDa glucose–regulated protein (GRP78) or heat shock 70 kDa protein 5 (HSPA5), known as binding immunoglobulin protein (BiP) or Byun1, which is encoded by the HSPA5 gene in humans.
T561 302-365 Sentence denotes HSP5A is a ER-resident unfolded protein response (UPR) protein.
T562 366-503 Sentence denotes Stressed cell status such as viral infection increase expression and translocation of HSPA5 to the PM to form a membrane protein complex.
T563 504-587 Sentence denotes GRP78 modulates MERS-CoV entry in the presence of the DPP4 as a host cell receptor.
T564 588-671 Sentence denotes Additionally, lineage D β-CoV and bat CoV HKU9 (bCoV-HKU9) also bind to GRP78 [76].
T565 672-790 Sentence denotes A cell surface receptor, GRP78, was predicted to be another COVID-19 receptor as an S glycoprotein binding site [110].
T566 791-906 Sentence denotes The prediction was made using the combined technology of molecular modeling docking with structural bioinformatics.
T567 907-973 Sentence denotes GRP78 or BiP is a chaperone protein located in the ER lumen [111].
T568 974-1139 Sentence denotes Known ER-bound enzymes include activating transcription factor 6 (ATF6), inositol-requiring enzyme 1 (IRE1) and protein kinase RNA (PKR)-like ER kinase (PERK) [112].
T569 1140-1301 Sentence denotes Depending on threshold of unfolded protein accumulation, GRP78 releases IRE1, ATF6 and PERK, and is activated, resulting in translation inhibition and refolding.
T570 1302-1388 Sentence denotes Stress-overexpressed GRP78 can avoid ER retention and is translocated to the membrane.
T571 1389-1524 Sentence denotes GRP78 translocated to the cell PM can recognize viruses by its substrate-binding domain (SBD) for virus entry into the cell (Figure 8).
T572 1525-1673 Sentence denotes In sequence and structural alignments and protein–protein docking, RBD of the CoV spike protein recognizes the GRP78 SBDβ as the host cell receptor.
T573 1674-1804 Sentence denotes The predicted region III (C391–C525) and region IV (C480–C488) of the S glycoprotein and GRP78 are highly potential binding sites.
T574 1805-1850 Sentence denotes Region IV is the GRP78 binding-driving force.
T575 1851-1975 Sentence denotes These nine amino acid residues are being molecularly targeted for the designation and simulation of COVID-19-specific drugs.
T576 1976-2109 Sentence denotes This process is the mechanism underlying the cell surface HSPA5 (GRP78) exposure and this is exploited to be used for pathogen entry.
T577 2110-2340 Sentence denotes Such pathogenic entry into host cells has been observed in multiple infections including pathogenic human viruses such as human papillomavirus, Ebola virus, Zika virus and HcoVs—as well as fungal Rhizopus oryzae [113,114,115,116].
T578 2341-2440 Sentence denotes Therefore, natural products can inhibit cell-surface HSPA5 recognition of the viral S glycoprotein.