In:
FEBS Letters, Wiley, Vol. 402, No. 1 ( 1997-02-03), p. 17-20
Kurzfassung:
A new type of fish antifreeze protein, designated here type IV, has been isolated from the longhorn sculpin, Myoxocephalus octodecimspinosis . Sequence analysis of the protein (LS‐12) reveals that it contains 108 amino acids, is blocked at the N‐terminus by a pyroglutamyl group and has a high (17%) content of glutamine; it is thus completely unrelated to the earlier described types I, II and III fish antifreeze proteins. Circular dichroism spectra and conformational analysis based on the sequence data indicate that LS‐12 has a high helix content and probably folds as a four‐helix bundle. LS‐12 shows sequence similarity to certain plasma apolipoproteins known to have helix bundle structures, suggesting the possibility that LS‐12 may have arisen by recruitment and mutation of a plasma apolipoprotein.
Materialart:
Online-Ressource
ISSN:
0014-5793
,
1873-3468
DOI:
10.1016/S0014-5793(96)01466-4
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
1997
ZDB Id:
212746-5
ZDB Id:
1460391-3
SSG:
12
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