Evidence map›Paper›PMID 22079863›Full record

ArticleBioorganic & medicinal chemistry2011

Photoaffinity labeling of Ras converting enzyme using peptide substrates that incorporate benzoylphenylalanine (Bpa) residues: improved labeling and structural implications.

Kelly Kyro, Surya P Manandhar, Daniel Mullen, Walter K Schmidt, Mark D Distefano

Abstract read
In one paragraph

Article in Bioorganic & medicinal chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 32% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 14 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Kelly KyroDepartment of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States.
Surya P Manandhar
Daniel Mullen
Walter K Schmidt
Mark D Distefano
University of Minnesota · USUniversity of Georgia · US

Funding

MECHANISM AND FUNCTION OF PROTEIN PRENYLATIONR01GM058842 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI DISTEFANO, MARK D · 1998 to 2010
$2.6M
Role of Rce1p in the Biogenesis of CaaX ProteinsR01GM067092 · NIGMS · UNIVERSITY OF GEORGIA (UGA) · PI SCHMIDT, WALTER K · 2005 to 2009
$1.2M
NIGMS NIH HHS GM067092NIGMS NIH HHS GM58442NIGMS NIH HHS R01 GM058842NIGMS NIH HHS R01 GM067092
6 · The paper itself

Abstract

Rce1p catalyzes the proteolytic trimming of C-terminal tripeptides from isoprenylated proteins containing CAAX-box sequences. Because Rce1p processing is a necessary component in the Ras pathway of oncogenic signal transduction, Rce1p holds promise as a potential target for therapeutic intervention. However, its mechanism of proteolysis and active site have yet to be defined. Here, we describe synthetic peptide analogues that mimic the natural lipidated Rce1p substrate and incorporate photolabile groups for photoaffinity-labeling applications. These photoactive peptides are designed to crosslink to residues in or near the Rce1p active site. By incorporating the photoactive group via p-benzoyl-l-phenylalanine (Bpa) residues directly into the peptide substrate sequence, the labeling efficiency was substantially increased relative to a previously-synthesized compound. Incorporation of biotin on the N-terminus of the peptides permitted photolabeled Rce1p to be isolated via streptavidin affinity capture. Our findings further suggest that residues outside the CAAX-box sequence are in contact with Rce1p, which has implications for future inhibitor design.

Indexed as

Amino Acid SequenceChromatography, High Pressure LiquidEndopeptidasesKineticsPeptidesPhenylalaninePhotolysisProteolysisSaccharomyces cerevisiaeSubstrate SpecificityTandem Mass SpectrometrybenzoylphenylalanineEndopeptidasesPeptidesPhenylalanine

Identifiers

PMID22079863
PMCPMC3319382
OpenAlexW2007101589

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.