Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1984-10-3
pubmed:abstractText
JAR malignant trophoblast cells produce a free alpha subunit in addition to an alpha combined with beta subunit as hCG. The free alpha is larger by gel chromatography and SDS-PAGE than combined alpha and is unable to associate with beta subunit to form hCG. A tryptic fragment, representing amino acid residues 36-42, derived from free alpha was larger than the corresponding fragment from combined alpha. After neuraminidase treatment, the fragment from free alpha bound peanut lectin agarose, which is specific for Gal beta 1-3GalNAc as found in O-linked oligosaccharides. The fragment also contained Gal and GalNAc (and a lesser amount of GlcNAc) as determined by glycosidase sensitivity and amino sugar analyses. Removal of this tryptic fragment ablated the size difference between free and combined alpha subunits.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
122
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1260-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
An oligosaccharide of the O-linked type distinguishes the free from the combined form of hCG alpha subunit.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.