The sequence and optical configuration of the amino acids xentoxin.
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Amino Acid Sequence↗
Biomedical subjects
J Tam
Publications and source records attributed to J Tam.
Acute traumatic renal artery to inferior vena cava fistula treated with a covered stent.
A 34-year-old man presented within hours of suffering a penetrating stab wound and was diagnosed with a right renal artery to inferior vena cava fistula. Initial attempts at excluding the fistula with a balloon were unsuccessful. He was subsequently treated with a covered stent inserted into the right renal artery which successfully excluded the fistula.
Acute Disease↗
Cyanide in blood by gas chromatography with NP detector and acetonitrile as internal standard. Application on air accident fire victims.
An improved gas chromatographic method for HCN in blood with acetonitrile as an internal standard has been developed. The necessity to test for cyanide on samples from air accident fire victims is discussed in view of the fact that carbon monoxide measurements usually do not correlate with cyanide findings. Nine cases (out of 67), with blood CO saturation of less than 20% and cyanide concentration over 2 mg/L, are described.
Accidents, Aviation↗
Ribosomal protein S1 and initiation factor IF3 do not promote the ribosomal binding of approximately 19-nucleotide-long mDNA and mRNA models.
A number of model mDNAs and mRNAs, about 19 nucleotides in length, were obtained by automated synthesis and T7 RNA polymerase directed transcription from synthetic DNA templates, respectively. These mDNAs and mRNAs had Shine-Dalgarno sequences that were four to eight nucleotides long and their sequence was similar to the R17 coat protein initiation site. The effect of S1 or initiation factors (IFs) on the rate and extent of ribosomal binding of these mDNAs and mRNAs was investigated by nitrocellulose filtration. No effect was detected, suggesting that the main function of S1 or IFs included neither the direct recognition or binding of short messengers to the 30S subunits, nor their rejection as "false" for possessing the wrong sugars or an insufficient length. A pulse-chase experiment with one of the mRNAs also showed that S1 or IF3 did not influence the exchange rate of mRNA bound to the 30S subunit.
Bacterial Proteins↗