X_element [SO_0001497]
The X element is a conserved region, of the telomere, of ~475 bp that contains an ARS sequence and in most cases an Abf1p binding site. Possible functions include roles in chromosomal segregation, maintenance of chromosome stability, recombinational sequestering, or as a barrier to transcriptional silencing. This term was requested 2009-10-16 by Michel Dumontier, tracker id 2880747. From Janos Demeter: The only region shared by all chromosome ends, the X element core sequence is a small conserved element (~475 bp) that contains an ARS sequence and in most cases an Abf1p binding site. Between these is a GC-rich region nearly identical to the meiosis-specific regulatory sequence URS1.
Note
This page displays the raw VFB json record for this term. Please use the link below to open the term inside the Virtual Fly Brain viewerVFB Term Json
{
"term": {
"core": {
"iri": "http://purl.obolibrary.org/obo/SO_0001497",
"symbol": "",
"types": [
"Entity",
"Class"
],
"short_form": "SO_0001497",
"label": "X_element"
},
"description": [
"The X element is a conserved region, of the telomere, of ~475 bp that contains an ARS sequence and in most cases an Abf1p binding site."
],
"comment": [
"Possible functions include roles in chromosomal segregation,\nmaintenance of chromosome stability, recombinational sequestering, or as a\nbarrier to transcriptional silencing. This term was requested 2009-10-16 by Michel Dumontier, tracker id 2880747.\n\nFrom Janos Demeter: The only region shared by all chromosome ends, the X element core sequence is a small conserved element (~475 bp) that contains an ARS sequence and in most cases an Abf1p binding site. Between these is a GC-rich region nearly identical to the meiosis-specific regulatory sequence URS1."
]
},
"query": "Get JSON for Class",
"version": "44725ae",
"parents": [
{
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/SO_0000330",
"types": [
"Entity",
"Class"
],
"short_form": "SO_0000330",
"label": "conserved_region"
}
],
"relationships": [
{
"relation": {
"iri": "http://purl.obolibrary.org/obo/BFO_0000050",
"label": "is part of",
"type": "part_of"
},
"object": {
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/SO_0000624",
"types": [
"Entity",
"Class"
],
"short_form": "SO_0000624",
"label": "wiki"
}
}
],
"xrefs": [],
"anatomy_channel_image": [],
"pub_syn": [
{
"synonym": {
"scope": "has_exact_synonym",
"label": "X element core sequence",
"type": ""
},
"pub": {
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/Unattributed",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "Unattributed",
"label": ""
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
}
},
{
"synonym": {
"scope": "has_related_synonym",
"label": "X element",
"type": ""
},
"pub": {
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/Unattributed",
"types": [
"Entity",
"Individual",
"pub"
],
"short_form": "Unattributed",
"label": ""
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
}
}
],
"def_pubs": []
}
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