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M9610491.TXT
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1996-01-30
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Document 0491
DOCN M9610491
TI Tools for the production and purification of full-length, N- or
C-terminal 32P-labeled protein, applied to HIV-1 Gag and Rev.
DT 9601
AU Jensen TH; Jensen A; Kjems J; Department of Molecular Biology,
University of Aarhus, Denmark.
SO Gene. 1995 Sep 11;162(2):235-7. Unique Identifier : AIDSLINE
MED/96032349
AB We have constructed two new vectors for the production of foreign
proteins in Escherichia coli. The vectors, pGEX-GTH and pET-HTG, produce
protein fused to glutathione S-transferase (GST) at the N- and
C-termini, respectively, allowing one-step purification on
glutathione-Sepharose. Furthermore, they carry the recognition sequence
(RRASV) for the catalytic subunit of cAMP-dependent heart muscle kinase
(HMK) at the terminus distal to the GST tag, enabling specific 32P
labeling in vitro. By positioning the GST and HMK sequences at opposite
ends of the introduced gene, only full-length fusion protein becomes
radiolabeled after purification. Avoiding the labeling of shorter fusion
protein species, often observed in bacterial expression of foreign
genes, is particularly important for a number of different purposes,
including protein mobility shift analysis and protein footprinting
technology.
DE Amino Acid Sequence Base Sequence Gene Products,
gag/GENETICS/*ISOLATION & PURIF Gene Products, rev/CHEMISTRY/*ISOLATION
& PURIF *Genetic Vectors Glutathione Transferases/CHEMISTRY
HIV-1/*CHEMISTRY Molecular Sequence Data Phosphorus Radioisotopes
Recombinant Proteins/*ISOLATION & PURIF Support, Non-U.S. Gov't
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).