Linked Life Data

9175266

Source:http://linkedlifedata.com/resource/pubmed/id/9175266

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1997-7-2
pubmed:databankReference
pubmed:abstractText
Basement membrane structures, or their main component, type IV collagen, have been detected in all multicellular animal species, except sponges. We cancel this exception by the demonstration of type IV collagenous sequences in a new marine sponge species by cDNA and genomic DNA studies. One of these sequences is long enough to demonstrate the specific characteristics of type IV collagen chains. The 12 cysteines are at conserved positions in the carboxyl-terminal non-helical NCl domain, as are the interruptions in the carboxyl-terminal end of the triple helical domain. The gene organization of the region coding for the NCl domain is similar to that of the human genes COL4A2, COL4A4 and COL4A6. An additional, shorter sequence suggests the presence of a second chain. The expected tissue localization of this collagen has been confirmed using polyclonal antibodies raised against a sponge recombinant protein. These results demonstrate that type IV collagen is representated in all animal phyla. It is actually the only known ubiquitous collagen and it has at least two different alpha chains in all the species where it has been characterized.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0248-4900
pubmed:author
pubmed:issnType
Print
pubmed:volume
88
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-44
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Type IV collagen in sponges, the missing link in basement membrane ubiquity.
pubmed:affiliation
Institut de Biologie et Chimie des Protéines, CNRS-UPR 412, Université Claude Bernard, Lyon, France.
pubmed:publicationType
Journal Article