Identification of beta protein precursor in newborn rat brain.

Abstract:

:We have identified by protein sequencing the precursor of beta protein in newborn rat brain. A rabbit antibody was raised against a synthetic peptide corresponding to the carboxyl-terminal 30 residues (666-695) of the putative beta-amyloid protein precursor (Kang et al. 1987). The antiserum recognized multiple bands at 110-130 kD in the blot of Triton X-100 extract of newborn rat brain homogenates. The partially purified immunoreactive proteins were subjected to SDS-PAGE, electrophoretically transferred onto a polyvinylidene difluoride membrane and analyzed for the partial amino-terminal sequence. Each of the three major immunoreactive polypeptides yielded the same amino-terminal sequence of LEVPTxGNAgxL (x: unidentified, g: weakly assigned glycine) which corresponds to the residues 18-29 of the putative precursor.

authors

Takio K,Hasegawa M,Titani K,Ihara Y

doi

10.1016/s0006-291x(89)80144-5

subject

Has Abstract

pub_date

1989-05-15 00:00:00

pages

1296-301

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(89)80144-5

journal_volume

160

pub_type

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