PMC:7352545 / 57925-60288 JSONTXT 10 Projects

Annnotations TAB TSV DIC JSON TextAE

Id Subject Object Predicate Lexical cue
T560 0-224 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 225-288 Sentence denotes HSP5A is a ER-resident unfolded protein response (UPR) protein.
T562 289-426 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 427-510 Sentence denotes GRP78 modulates MERS-CoV entry in the presence of the DPP4 as a host cell receptor.
T564 511-594 Sentence denotes Additionally, lineage D β-CoV and bat CoV HKU9 (bCoV-HKU9) also bind to GRP78 [76].
T565 595-713 Sentence denotes A cell surface receptor, GRP78, was predicted to be another COVID-19 receptor as an S glycoprotein binding site [110].
T566 714-829 Sentence denotes The prediction was made using the combined technology of molecular modeling docking with structural bioinformatics.
T567 830-896 Sentence denotes GRP78 or BiP is a chaperone protein located in the ER lumen [111].
T568 897-1062 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 1063-1224 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 1225-1311 Sentence denotes Stress-overexpressed GRP78 can avoid ER retention and is translocated to the membrane.
T571 1312-1447 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 1448-1596 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 1597-1727 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 1728-1773 Sentence denotes Region IV is the GRP78 binding-driving force.
T575 1774-1898 Sentence denotes These nine amino acid residues are being molecularly targeted for the designation and simulation of COVID-19-specific drugs.
T576 1899-2032 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 2033-2263 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 2264-2363 Sentence denotes Therefore, natural products can inhibit cell-surface HSPA5 recognition of the viral S glycoprotein.