PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1804309-2	1991	Using intact human peripheral blood B cells of young subjects labeled with orthophosphate, increased phosphorylation levels of serine/threonine and tyrosine substrates were demonstrated on indicator phosphoproteins corresponding to the CD20 isoforms and microtubule-associated protein 2 kinase after cross-linking sIg and costimulation with phorbol diesters.	Serine	127-133	keratin 20	Homo sapiens	236-240	
7678037-3	1993	The cytoplasmic domains of CD20 contain multiple serine and threonine residues, of which at least two are followed by acidic sequences typical of substrate sites favored by casein kinase II.	Serine	49-55	keratin 20	Homo sapiens	27-31	
20724476-6	2010	Notably, analysis of small molecule p38 inhibitors on K8-Ser(73) phosphorylation also demonstrated reduced phosphorylations of keratins K18-Ser(52) and K20-Ser(13) but not of K8-Ser(431) or K18-Ser(33).	Serine	57-60	keratin 20	Homo sapiens	152-155	
20724476-7	2010	Interestingly, K18-Ser(52) and K20-Ser(13) are not directly phosphorylated by p38 in vitro, but by MK2.	Serine	35-38	keratin 20	Homo sapiens	31-34	
20724476-8	2010	Furthermore, anisomycin-stimulated phosphorylations of K20-Ser(13) and K18-Ser(52) are inhibited by small molecule inhibitors of both p38 and MK2.	Serine	59-62	keratin 20	Homo sapiens	55-58	
20724476-9	2010	MK2 knockdown in HT29 cells leads to reduced K20-Ser(13) phosphorylation, which further supports the notion that MK2 is responsible for K20 phosphorylation in vivo.	Serine	49-52	keratin 20	Homo sapiens	45-48	
20724476-9	2010	MK2 knockdown in HT29 cells leads to reduced K20-Ser(13) phosphorylation, which further supports the notion that MK2 is responsible for K20 phosphorylation in vivo.	Serine	49-52	keratin 20	Homo sapiens	136-139	
15969005-5	2003	The data of mutant clone DNA sequence showed that the amino acid of light chain gene of the parent anti-CD20 antibody (H47) was successful mutated as Ser (GAG)-Asn (CAG).	Serine	150-153	keratin 20	Homo sapiens	104-108	
34030100-2	2021	Here we demonstrated that, in progressive MS patients, CD3+CD20+ T cells share the ability to express cytotoxic factors such as perforin and serine-protease granzyme-B (GzmB), classically associated with CD8+ T cells functionality.	Serine	141-147	keratin 20	Homo sapiens	59-63