Id |
Subject |
Object |
Predicate |
Lexical cue |
T581 |
0-129 |
Sentence |
denotes |
Among the six HCoVs, the α-CoV HCoV-229E S protein recognizes hAPN known as CD13 or membrane alanyl aminopeptidase (EC 3.4.11.2). |
T582 |
130-262 |
Sentence |
denotes |
Porcine epidemic diarrhea coronavirus virus (PEDV) binds to protein receptor APN of human- and pig NeuAc species as its co-receptor. |
T583 |
263-402 |
Sentence |
denotes |
Apart from hAPN, TGEV and PEDV bind to SA species [117], although SA recognition by TGEV is not essential in the first step of entry cycle. |
T584 |
403-477 |
Sentence |
denotes |
HCoV-229E recognizes hAPN known as CD13 for its entry receptor. hAPN (PDB: |
T585 |
478-586 |
Sentence |
denotes |
4FYQ) or CD13 (EC 3.4.11.2), which is a Zn-dependent metalloprotease, has a MW 150 kDa with 967 amino acids. |
T586 |
587-714 |
Sentence |
denotes |
CD13 is a type II TM protein with a short cytoplasmic domain in the N-terminal region and long extracellular region in the CTD. |
T587 |
715-778 |
Sentence |
denotes |
The CTD has a pentapeptide sequence specific for the Zinc–MMPs. |
T588 |
779-973 |
Sentence |
denotes |
The APN binding domain is located on the CTD of PEDV S1 (amino acid 477–629 residues), while the SA-binding domain is found in the N-terminal region of PEDV S1 (amino acid 1–320 residues) [118]. |
T589 |
974-1171 |
Sentence |
denotes |
CD13 is also a receptor for HCoV-229E, human cytomegalovirus, porcine CoV TGEV, feline infectious peritonitis virus (FIPV), feline enteric virus (FeCV) and canine-infectious CoVs [119,120,121,122]. |
T590 |
1172-1214 |
Sentence |
denotes |
Homodimeric CD13 digests luminal peptides. |
T591 |
1215-1379 |
Sentence |
denotes |
The hAPN-encoding ANPEP gene is a dominant component in proximal tubular epithelial cells, small intestinal cells, macrophages, granulocytes and synaptic membranes. |
T592 |
1380-1450 |
Sentence |
denotes |
If this gene is defective, leukemia or lymphoma are transformed [123]. |
T593 |
1451-1508 |
Sentence |
denotes |
Porcine and human APN exhibit about 80% protein identity. |
T594 |
1509-1567 |
Sentence |
denotes |
FIPV and FeCV are in the same group as HCoV-229E and TGEV. |
T595 |
1568-1661 |
Sentence |
denotes |
Thus, porcine APN is also an attachment site for pig TGEV with an additional second receptor. |
T596 |
1662-1764 |
Sentence |
denotes |
HCoV-229E first binds to CD13 and consequently clusters CD13 in caveolae-associated lipid rafts [120]. |