J. Throck Watson
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View article: Characterization of peptide folding nuclei by hydrogen/deuterium exchange‐mass spectrometry
Characterization of peptide folding nuclei by hydrogen/deuterium exchange‐mass spectrometry Open
Covalently linked pairs of well‐chosen peptides can be good model systems for protein folding studies because they can adopt stable secondary, side‐chain, and tertiary structure under certain conditions. We demonstrate a method for charact…
View article: Hsp90/p50cdc37 Is Required for Mixed-lineage Kinase (MLK) 3 Signaling
Hsp90/p50cdc37 Is Required for Mixed-lineage Kinase (MLK) 3 Signaling Open
Mixed-lineage kinase 3 (MLK3) is a mitogen-activated protein kinase (MAPK) kinase kinase that activates MAPK pathways, including the c-Jun NH(2)-terminal kinase (JNK) and p38 pathways. MLK3 and its family members have been implicated in JN…
View article: Recognition of cysteine‐containing peptides through prompt fragmentation of the 4‐dimethylaminophenylazophenyl‐4′‐maleimide derivative during analysis by MALDI‐MS
Recognition of cysteine‐containing peptides through prompt fragmentation of the 4‐dimethylaminophenylazophenyl‐4′‐maleimide derivative during analysis by MALDI‐MS Open
Under specified UV‐MALDI conditions, the 4‐dimethylaminophenylazophenyl‐4'‐maleimide (DABMI) derivative of cysteine‐containing peptides undergoes prompt fragmentation to produce a characteristic mass spectral pattern. As reported previousl…
View article: Dopamine biosynthesis is regulated byS-glutathionylation. Potential mechanism of tyrosine hydroxylase inhibition under oxidative stress.
Dopamine biosynthesis is regulated byS-glutathionylation. Potential mechanism of tyrosine hydroxylase inhibition under oxidative stress. Open
Page 48299, Fig. 6: The mass label for the largest peak on row C (upper row) was cut off. It should be labeled at 2464.23. Page 48300, Fig. 7: The lines of the spectra are not visible. Both figures are printed correctly below.
View article: Dopamine Biosynthesis Is Regulated byS-Glutathionylation
Dopamine Biosynthesis Is Regulated byS-Glutathionylation Open
Tyrosine hydroxylase (TH), the initial and rate-limiting enzyme in the biosynthesis of the neurotransmitter dopamine, is inhibited by the sulfhydryl oxidant diamide in a concentration-dependent manner. The inhibitory effect of diamide on T…
View article: Peroxynitrite-induced Nitration of Tyrosine Hydroxylase
Peroxynitrite-induced Nitration of Tyrosine Hydroxylase Open
Tyrosine hydroxylase (TH), the initial and rate-limiting enzyme in the biosynthesis of the neurotransmitter dopamine, is inactivated by peroxynitrite. The sites of peroxynitrite-induced tyrosine nitration in TH have been identified by matr…
View article: Vision 2020: 2000 Separations Roadmap
Vision 2020: 2000 Separations Roadmap Open
This report documents the results of four workshops on the technology barriers, research needs, and priorities of the chemical, agricultural, petroleum, and pharmaceutical industries as they relate to separation technologies utilizing adso…
View article: Probing the Folding Pathways of Long R3Insulin-like Growth Factor-I (LR3IGF-I) and IGF-I via Capture and Identification of Disulfide Intermediates by Cyanylation Methodology and Mass Spectrometry
Probing the Folding Pathways of Long R3Insulin-like Growth Factor-I (LR3IGF-I) and IGF-I via Capture and Identification of Disulfide Intermediates by Cyanylation Methodology and Mass Spectrometry Open
This report describes an integrated investigation of the refolding and reductive unfolding of insulin-like growth factor (IGF-I) and its variant, long R(3) IGF-I (LR(3)IGF-I), which has a Glu(3) to Arg(3) substitution and a hydrophobic 13-…
View article: Trapping of intermediates during the refolding of recombinant human epidermal growth factor (hEGF) by cyanylation, and subsequent structural elucidation by mass spectrometry
Trapping of intermediates during the refolding of recombinant human epidermal growth factor (hEGF) by cyanylation, and subsequent structural elucidation by mass spectrometry Open
Human epidermal growth factor (hEGF) contains 53 amino acids and three disulfide bonds. The unfolded, reduced hEGF is allowed to refold under mildly alkaline conditions. The folding is quenched at different time points by adjusting the pH …
View article: A novel methodology for assignment of disulfide bond pairings in proteins
A novel methodology for assignment of disulfide bond pairings in proteins Open
A novel methodology is described for the assignment of disulfide bonds in proteins of known sequence. The denatured protein is subjected to limited reduction by tris(2‐carboxyethyl)phosphine (TCEP) in pH 3.0 citrate buffer to produce a mix…
View article: Fatty Acid Substrate Specificities of Human Prostaglandin-endoperoxide H Synthase-1 and −2
Fatty Acid Substrate Specificities of Human Prostaglandin-endoperoxide H Synthase-1 and −2 Open
Human prostaglandin-endoperoxide H synthase-1 and -2 (hPGHS-1 and hPGHS-2) were expressed by transient transfection of COS-1 cells. Microsomes prepared from the transfected cells were used to measure the rates of oxygenation of several 18-…
View article: Highly resolving two-dimensional gels for protein sequencing.
Highly resolving two-dimensional gels for protein sequencing. Open
Two-dimensional (2D) PAGE, using carrier ampholytes for the first-dimension separation, has provided a tool for the simultaneous analysis of cellular proteins. To extend the utility of 2D PAGE to the preparative level, we have investigated…
View article: Erratum to: A study of the gas-phase reaction between protonated acetaldehyde and reaction between protonated acetaldehyde and methanol
Erratum to: A study of the gas-phase reaction between protonated acetaldehyde and reaction between protonated acetaldehyde and methanol Open
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View article: Subject Index
Subject Index Open
residue I I USSCS, table of, 184 struchucs of, 147 Ammoni.. as CI reagent gas.74.75
View article: Cumulative Subject Index
Cumulative Subject Index Open
View article: Urinary prostaglandins. Identification and origin.
Urinary prostaglandins. Identification and origin. Open
Human urine was analyzed by mass spectrometry for the presence of prostaglandins. Prostaglandin E2 and F2alpha were detected in urine from females by selected ion monitoring of the prostaglandin E2-methylester-methoxime bis-acetate and the…
View article: Effects of a False Neurotransmitter, p-Hydroxynorephedrine, on the Function of Adrenergic Neurons in Hypertensive Patients
Effects of a False Neurotransmitter, p-Hydroxynorephedrine, on the Function of Adrenergic Neurons in Hypertensive Patients Open
Previous studies have shown that amphetamine and p-hydroxyamphetamine impair adrenergic transmission, and it has been suggested that this effect is mediated by an active metabolite, p-hydroxynorephedrine (PHN). Studies in experimental anim…