https://www.biostars.org/p/9592523/ Can you suggest a protein that has two chainst but only 50 total number of atoms?

biostar9592523.sparql

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX vg: <http://biohackathon.org/resource/vg#>
PREFIX up: <http://purl.uniprot.org/core/>
PREFIX uniprotkb: <http://purl.uniprot.org/uniprot/>
PREFIX uberon: <http://purl.obolibrary.org/obo/uo#>
PREFIX taxon: <http://purl.uniprot.org/taxonomy/>
PREFIX sp: <http://spinrdf.org/sp#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX sio: <http://semanticscience.org/resource/>
PREFIX sh: <http://www.w3.org/ns/shacl#>
PREFIX sd: <http://www.w3.org/ns/sparql-service-description#>
PREFIX schema: <http://schema.org/>
PREFIX sachem: <http://bioinfo.uochb.cas.cz/rdf/v1.0/sachem#>
PREFIX rh: <http://rdf.rhea-db.org/>
PREFIX pubmed: <http://rdf.ncbi.nlm.nih.gov/pubmed/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX patent: <http://data.epo.org/linked-data/def/patent/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX orthodbGroup: <http://purl.orthodb.org/odbgroup/>
PREFIX orthodb: <http://purl.orthodb.org/>
PREFIX orth: <http://purl.org/net/orth#>
PREFIX oboInOwl: <http://www.geneontology.org/formats/oboInOwl#>
PREFIX obo: <http://purl.obolibrary.org/obo/>
PREFIX np: <http://nextprot.org/rdf#>
PREFIX nextprot_cv: <http://nextprot.org/rdf/terminology/>
PREFIX nextprot: <http://nextprot.org/rdf/entry/>
PREFIX mnx: <https://rdf.metanetx.org/schema/>
PREFIX mnet: <https://rdf.metanetx.org/mnet/>
PREFIX mesh: <http://id.nlm.nih.gov/mesh/>
PREFIX lscr: <http://purl.org/lscr#>
PREFIX lipidmaps: <https://www.lipidmaps.org/rdf/>
PREFIX keywords: <http://purl.uniprot.org/keywords/>
PREFIX insdcschema: <http://ddbj.nig.ac.jp/ontologies/nucleotide/>
PREFIX insdc: <http://identifiers.org/insdc/>
PREFIX identifiers: <http://identifiers.org/>
PREFIX glyconnect: <https://purl.org/glyconnect/>
PREFIX glycan: <http://purl.jp/bio/12/glyco/glycan#>
PREFIX genex: <http://purl.org/genex#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX faldo: <http://biohackathon.org/resource/faldo#>
PREFIX eunisSpecies: <http://eunis.eea.europa.eu/rdf/species-schema.rdf#>
PREFIX ensembltranscript: <http://rdf.ebi.ac.uk/resource/ensembl.transcript/>
PREFIX ensemblterms: <http://rdf.ebi.ac.uk/terms/ensembl/>
PREFIX ensemblprotein: <http://rdf.ebi.ac.uk/resource/ensembl.protein/>
PREFIX ensemblexon: <http://rdf.ebi.ac.uk/resource/ensembl.exon/>
PREFIX ensembl: <http://rdf.ebi.ac.uk/resource/ensembl/>
PREFIX ec: <http://purl.uniprot.org/enzyme/>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX dc: <http://purl.org/dc/terms/>
PREFIX chebislash: <http://purl.obolibrary.org/obo/chebi/>
PREFIX chebihash: <http://purl.obolibrary.org/obo/chebi#>
PREFIX cco: <http://rdf.ebi.ac.uk/terms/chembl#>
PREFIX busco: <http://busco.ezlab.org/schema#>
PREFIX bibo: <http://purl.org/ontology/bibo/>
PREFIX allie: <http://allie.dbcls.jp/>
PREFIX SWISSLIPID: <https://swisslipids.org/rdf/SLM_>
PREFIX GO: <http://purl.obolibrary.org/obo/GO_>
PREFIX ECO: <http://purl.obolibrary.org/obo/ECO_>
PREFIX CHEBI: <http://purl.obolibrary.org/obo/CHEBI_>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT distinct ?prot ?protName (COUNT(DISTINCT ?chain) as ?n_chains) 
WHERE
{
?prot <http://purl.uniprot.org/core/mnemonic> ?protName .
?prot <http://purl.uniprot.org/core/annotation> ?chain .
?prot a <http://purl.uniprot.org/core/Protein> .
?chain a <http://purl.uniprot.org/core/Peptide_Annotation> .
?prot <http://purl.uniprot.org/core/sequence> ?sequence .
?chain rdfs:comment ?chainTitle .
?sequence  rdf:value ?pep .

  
  FILTER(   strlen(str(?pep)) > 60 ) .
  FILTER(   regex(str(?chainTitle),"chain" ) ) .
}
GROUP BY ?prot ?protName
HAVING( (COUNT(DISTINCT ?chain))=2)
ORDER by ?prot ?n_chains