Search PubMed⌕ Search

Biomedical subjects

D Dennis

Publications and source records attributed to D Dennis.

72 records · Page 4Linked to original sources
PubMed1976

Lactate racemase. Hydroxylamine-dependent 18O exchange of the alpha-hydroxyl of lactic acid.

The lactic acid racemase (EC 5.1.2.1) derived from Clostridium butylicum catalyzes the racemization of the alpha-18O label. The proposed alpha-carbonyl intermediate for the enzyme-catalyzed reaction has been previously shown to be trapped as an enzyme-bound oxime in the presence of hydroxylamine. This report demonstrates that the formation of the inactive enzyme-bound oxime, followed by reactivation in the presence of an excess of competing free carbonyl (pyruvic acid) results in a complete loss of the alpha-18O label from an original alpha-18O-labeled lactic acid.

Clostridium↗
PubMed1976

Standing firm.

Explore the source record for details and available documents.

Nurse-Patient Relations↗
PubMed1972

Messenger RNA structure: compatibility of hairpin loops with protein sequence.

Examination of the amino acid sequences of human cytochrome c and the alpha-chain variant of human hemoglobin Constant Spring has revealed the possiblity for base-paired hairpin loops in the messenger RNA's for these proteins. A similar analysis of the bacteriophage R17 coat protein suggests an additional unobserved loop in the R17 RNA. If such loops are present in messenger RNA's generally, it would suggest that DNA has more than one stable base-paired conformation.

Amino Acid Sequence↗
PubMedDate not supplied

Computer-drafted pressure support gloves.

Using computer-drafted pressure support gloves during a six-month period, we greatly increased our accuracy of fit. Only eight alterations were required out of 214 gloves manufactured, and none of the alterations was due to computer error. Our time to calculate and lay out patterns decreased by a 4:1 ratio, thus reducing a two-hour time period to one-half hour per glove. The cost of hardware and software was offset by reduced labor costs over a period of approximately eight months. Use of the computer was cost effective, produced error-free patterns, and allowed better control of pattern consistency.

Burns↗
PubMedDate not supplied

Emerging zoonoses.

Explore the source record for details and available documents.

Animals↗