10.1111/j.1432-1033.1988.tb14342.x
Crossref journal-article
Wiley
European Journal of Biochemistry (311)
Abstract

The outer segments of the long arm of laminin have recently been shown to mediate attachment of many cell types and to stimulate neurite outgrowth. For a structural characterization of this part of the molecule we prepared, by limited elastase digestion of laminin, fragments E3 and E8, previously identified as a globular heparin‐binding domain and as a 35‐nm‐long rod with a terminal globule, respectively. Fragment E3 is a domain adjacent to fragment E8. Both structures together comprise the complete terminal half of the long arm. Our data confirm current models, which predict that the C‐terminal segments from all three chains contribute to its structure. The B chains terminate at the end of the rod like domain, while the large terminal globule is formed by A‐chain structures only. In addition to fragment E3, two new fragments T1 and T2 obtained by tryptic cleavage of fragment E8 were characterized as substructures of the globular domain. Screening of a mouse cDNA library with synthetic oligonucleotides allowed isolation of an 1.8‐kb cDNA clone encoding 547 C‐terminal amino acids of the A chain and some 196 nucleotides of the 3′‐untranslated region including a single polyadenylation site. The clone contained portions of domain T2 and the complete heparin binding domain E3 which was thus identified as the most C‐terminal domain of the A chain. Sequence alignment indicated that the terminal globule is formed by homologous repeats of some 140 residues having no counterpart in the B chains.

Bibliography

DEUTZMANN, R., HUBEP, J., SCHMETZ, K. A., OBERBÄMER, I., & HARTL, L. (1988). Structural study of long arm fragments of laminin. European Journal of Biochemistry, 177(1), 35–45. Portico.

Authors 5
  1. Rainer DEUTZMANN (first)
  2. Johann HUBEP (additional)
  3. Konrad A. SCHMETZ (additional)
  4. Ilse OBERBÄMER (additional)
  5. Lydia HARTL (additional)
Dates
Type When
Created 20 years, 5 months ago (March 3, 2005, 9:28 p.m.)
Deposited 1 year, 9 months ago (Nov. 23, 2023, 9:37 a.m.)
Indexed 1 year ago (July 28, 2024, 3:15 a.m.)
Issued 36 years, 10 months ago (Oct. 1, 1988)
Published 36 years, 10 months ago (Oct. 1, 1988)
Published Online 20 years, 5 months ago (March 3, 2005)
Published Print 36 years, 10 months ago (Oct. 1, 1988)
Funders 0

None

@article{DEUTZMANN_1988, title={Structural study of long arm fragments of laminin: Evidence for repetitive C‐terminal sequences in the A‐chain, not present in the B‐chains}, volume={177}, ISSN={1432-1033}, url={http://dx.doi.org/10.1111/j.1432-1033.1988.tb14342.x}, DOI={10.1111/j.1432-1033.1988.tb14342.x}, number={1}, journal={European Journal of Biochemistry}, publisher={Wiley}, author={DEUTZMANN, Rainer and HUBEP, Johann and SCHMETZ, Konrad A. and OBERBÄMER, Ilse and HARTL, Lydia}, year={1988}, month=oct, pages={35–45} }