Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1996-1-18
pubmed:databankReference
pubmed:abstractText
Surfactant protein-D (SP-D) is a collectin found associated with surfactant in the lung. SP-D has also been functionally characterized as an opsonin for diverse microorganisms and a chemoattractant for phagocytic cells. To determine the structure of mouse SP-D, we isolated and characterized clones from a B6/CBAF1J strain lung cDNA library using a PCR-derived genomic probe. The deduced sequence predicts a 19-amino acid signal sequence, a 25-amino acid long NH2 terminus with two cysteines, followed by an uninterrupted collagen domain with 59 Gly-X-Y repeats. Next, a short "neck" domain of 28 amino acids, with a potential to form trimeric alpha-helical coiled coil is found ending in a COOH-terminal 125-amino acid carbohydrate recognition domain. The mature mouse SP-D protein of 355 amino acids shows strong homology to rat (92% identity), human (76%), and bovine (72%) SP-D amino acid sequences. Northern blot and RT-PCR analysis revealed that the mouse SP-D gene is expressed predominantly in lung and, surprisingly, also in heart, stomach, and kidney but not in brain. In contrast, mouse surfactant protein-A (SP-A) mRNA expression was found to be restricted to lung. Human lung and stomach, but not heart or liver, were found to express SP-D mRNA, as determined by PCR. The mouse SP-D gene (Sftp4) has been localized to chromosome 14 (to a region syntenic to human chromosome 10), closely linked to the genes for other collagenous lectins, mannose-binding protein-A (MbI1), and SP-A (Sftp1).
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
155
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5671-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:7499852-Amino Acid Sequence, pubmed-meshheading:7499852-Animals, pubmed-meshheading:7499852-Base Sequence, pubmed-meshheading:7499852-Chromosome Mapping, pubmed-meshheading:7499852-Cloning, Molecular, pubmed-meshheading:7499852-Glycoproteins, pubmed-meshheading:7499852-Mice, pubmed-meshheading:7499852-Mice, Inbred C57BL, pubmed-meshheading:7499852-Mice, Inbred CBA, pubmed-meshheading:7499852-Molecular Sequence Data, pubmed-meshheading:7499852-Organ Specificity, pubmed-meshheading:7499852-Polymerase Chain Reaction, pubmed-meshheading:7499852-Proteolipids, pubmed-meshheading:7499852-Pulmonary Surfactant-Associated Protein A, pubmed-meshheading:7499852-Pulmonary Surfactant-Associated Protein D, pubmed-meshheading:7499852-Pulmonary Surfactant-Associated Proteins, pubmed-meshheading:7499852-Pulmonary Surfactants, pubmed-meshheading:7499852-RNA, Messenger, pubmed-meshheading:7499852-Sequence Alignment, pubmed-meshheading:7499852-Sequence Homology, Amino Acid
pubmed:year
1995
pubmed:articleTitle
Mouse surfactant protein-D. cDNA cloning, characterization, and gene localization to chromosome 14.
pubmed:affiliation
Department of Pathology, Boston University School of Medicine, MA 02118, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.