751
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Wilson L, Cenedella RJ, Butcher RL, Inskeep EK. Levels of prostaglandins in the uterine endometrium during the ovine estrous cycle. J Anim Sci 1972; 34:93-9. [PMID: 5062067 DOI: 10.2527/jas1972.34193x] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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752
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Wilson L. President's address: no more tears. Radiol Technol 1972; 43:226-9. [PMID: 4670962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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753
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754
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Abstract
Colchicine-binding protein, considered to be microtubule protein, was purified from chick embryo brain by column chromatography in one step on DEAE-Sephadex. The active colchicine-binding unit is a dimer, MW 115,000 +/- 5000, which is composed of two nonidentical monomeric units. The two subunits are separable by urea-acrylamide gel electrophoresis after they have been reduced and acetylated. Sodium dodecyl sulfate-acrylamide gel electrophoresis indicates that the subunits both have molecular weights of 55,000 +/- 2000. The amino-acid compositions of the two subunits showed statistically significant differences in six amino-acid residues. These results indicate that colchicine-sensitive cytoplasmic microtubules are heteropolymers.
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755
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Wilson L. Properties of colchicine binding protein from chick embryo brain. Interactions with vinca alkaloids and podophyllotoxin. Biochemistry 1970; 9:4999-5007. [PMID: 5480163 DOI: 10.1021/bi00827a026] [Citation(s) in RCA: 329] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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756
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Wilson L, Butcher RL, Inskeep EK. Studies on the relation of decidual cell response to luteal maintenance in the pseudopregnant rat. Biol Reprod 1970; 3:342-6. [PMID: 4331374 DOI: 10.1093/biolreprod/3.3.342] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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757
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Wilson L. President's message. Radiol Technol 1970; 42:175-6. [PMID: 5475016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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758
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Brickman RD, Wilson L, Zuberbuhler JR, Bahnson HT. Cor triatriatum. Clinical presentation and operative treatment. J Thorac Cardiovasc Surg 1970; 60:523-30. [PMID: 5511887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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759
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760
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Wilson L, Bryan J, Ruby A, Mazia D. Precipitation of proteins by vinblastine and calcium ions. Proc Natl Acad Sci U S A 1970; 66:807-14. [PMID: 5269244 PMCID: PMC283122 DOI: 10.1073/pnas.66.3.807] [Citation(s) in RCA: 179] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
We have found that vinblastine sulfate can precipitate a number of proteins in addition to microtubule protein. Those proteins which precipitate with vinblastine sulfate, all of which were derived from structure, also precipitate with Ca(2+) ions. Our results suggest that vinblastine sulfate, presumably acting as a cation, precipitates proteins by combining with sites which can also combine with Ca(2+) ions.
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761
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762
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Weintraub L, Oles SR, Wilson A, Wilson L. Synthesis of p-acetamidophenyl beta-D-glucopyranosiduronic acid. JOURNAL OF THE CHEMICAL SOCIETY. PERKIN TRANSACTIONS 1 1969; 11:1562-4. [PMID: 5816432 DOI: 10.1039/j39690001562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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763
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Horwitz SB, Kwok G, Wilson L, Kisliuk RL. Diastereoisomers of formaldehyde derivatives of tetrahydrofolic acid and tetrahydroaminopterin. J Med Chem 1969; 12:49-51. [PMID: 4883936 DOI: 10.1021/jm00301a013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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764
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Nossaman N, Ridgway EC, Slater C, Wilson L, Reiff MI, Carris CK, Skeff KM. Medical students look ahead. ROCKY MOUNTAIN MEDICAL JOURNAL 1968; 65:29-31. [PMID: 5667903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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765
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Wilson L. The analysis of aluminium alloys by atomic absorption spectroscopy with special reference to the determination of chromium and zirconium. Anal Chim Acta 1968. [DOI: 10.1016/s0003-2670(00)86766-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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766
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Freedman SJ, Wilson L. Compensation for auditory re-arrangement following exposure to auditory-tactile discordance. Percept Mot Skills 1967; 25:861-6. [PMID: 6083306 DOI: 10.2466/pms.1967.25.3.861] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
15 Os presented with discordant auditory and tactile information about the location of the same object, compensated rapidly for an auditory re-arrangement when asked to point at an unseen auditory target. Unlike most perceptual compensation studies, movement by O was not permitted. It is suggested that discordance between or among different kinds of spatial information may be the condition that leads to compensation for re-arrangement.
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767
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Wilson L. Future of higher education and research. J Dent Res 1967; 46:1216-21. [PMID: 5235013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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768
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Wilson L, Friedkin M. The biochemical events of mitosis. II. The in vivo and in vitro binding of colchicine in grasshopper embryos and its possible relation to inhibition of mitosis. Biochemistry 1967; 6:3126-35. [PMID: 6056978 DOI: 10.1021/bi00862a021] [Citation(s) in RCA: 248] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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769
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Hawkins MJ, Knowles JR, Wilson L, Witcher D. The interaction of alpha-chymotrypsin with isosteric substrates of different charge type. Biochem J 1967; 104:762-6. [PMID: 6049922 PMCID: PMC1271217 DOI: 10.1042/bj1040762] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
1. The synthesis of three substrates of alpha-chymotrypsin of closely similar steric requirements but different charge type is reported. 2. The interaction of these compounds [SS-dimethyl-(l-3-carboxymethyl-3-acetamido)propyl sulphonium iodide, l-2-acetamido-5-methylhexanoic acid methyl ester and N-acetyl-l-glutamic acid alpha-methyl ester] with alpha-chymotrypsin has been studied. 3. For the charged substrates, values of k(0) are two orders of magnitude smaller than, and values of K(m) two orders of magnitude larger than, the corresponding values for the uncharged isostere. 4. The results are interpreted in terms of the known specificity of the enzyme, and the relationship between binding and kinetic specificities is discussed.
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770
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Freedman SJ, Wilson L, Rekosh JH. Compensation for auditory re-arrangement in hand-ear coordination. Percept Mot Skills 1967; 24:1207-10. [PMID: 5623084 DOI: 10.2466/pms.1967.24.3c.1207] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
10 Ss pointed at concealed auditory targets while listening through a pseudophone which produced 20° functional rotation of the interaural axis. After short exposures listening to a sound source held in one hand while moving that hand about, large and significant corrective shifts in pointing were measured.
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771
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Wilson L. President's message. Radiol Technol 1966; 38:172-5. [PMID: 5978594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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772
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Wilson L. Change or a "Siren on the Rocks". Radiol Technol 1966; 38:80. [PMID: 5946317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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773
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Wilson L, Friedkin M. The biochemical events of mitosis. I. Synthesis and properties of colchicine labeled with tritium in its acetyl moiety. Biochemistry 1966; 5:2463-8. [PMID: 5959471 DOI: 10.1021/bi00871a042] [Citation(s) in RCA: 162] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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774
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Baker N, Wilson L. Water-soluble inhibitor(s) of tumor respiration formed from ultraviolet-induced oxidation of linoleic and linolenic acids. J Lipid Res 1966; 7:349-56. [PMID: 5951720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Inhibition of Ehrlich ascites carcinoma respiration by aqueous extracts of oxidized linoleic or linolenic acid (aqueous emulsions UV-irradiated, 90 min) was associated entirely with relatively involatile compounds which were both thiobarbituric acid (TBA)-reactive and peroxidase-reactive. Inhibitory compounds were heat stable and migrated in thin-layer chromatography with aldehydes, "hydroperoxides," and TBA-reactive compounds. Peroxidase-catalyzed reduction of the "hydroperoxide" diminished the inhibition. At 4.7 x 10(-5) M "hydroperoxide" concentration, the residues from both linoleic and linolenic acid inhibited tumor oxygen consumption to a similar degree. However, at this concentration of "hydroperoxide" only the dried extract from linolenic acid was able to produce inhibition (100%) of aerobic glucose utilization by tumor cells. No glycolytic inhibition by the dried residue of oxidized linoleic acid was observed. At least 12 compounds (approximate chain length, 7C-13C) containing alpha,Beta-unsaturated carbonyl groups were isolated by gas-liquid chromatography (GLC) of dried extracts of oxidized linolenic acid. No single fraction inhibited tumor respiration, but the recombined mixture of all compounds caused complete respiratory inhibition of ascites tumor cells. Less material was required to inhibit oxygen consumption before than after GLC presumably because the more highly inhibitory components of the extract (along with "hydroperoxides" and TBA-reactive compounds) were lost during GLC. Extracts from oxidized linolenic acid were found to produce in all tumor cells cytoplasmic evaginations which were readily detected by phase microscopy.
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775
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Baker N, Wilson L. Water soluble products of UV-irradiated autoxidized linoleic and linolenic acids. J Lipid Res 1966; 7:341-8. [PMID: 5929349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The water-soluble products of the UV-initiated autoxidation of linoleic and linolenic acids emulsified in water were separated into volatile and relatively involatile components, each of which reacted with both thiobarbituric acid (TBA) and peroxidase. The volatile TBA-reactive compound is probably malonaldehyde and the volatile peroxidase-reactive compound is hydrogen peroxide. Additional compounds which absorb UV light were present in the volatile fraction. After thin-layer chromatography of the involatile fraction, reactivity toward TBA and peroxidase was found in the same spot. Approximate molar yields of hydrogen peroxide, malonaldehyde, "hydroperoxides", and other TBA-reactive compounds were estimated. The ratio of "hydroperoxide" to TBA reactivity was lower for linoleic than for linolenic acid. The mass of relatively involatile compounds was about 20 times greater than that predicted from either peroxidase or TBA assays of water extracts of oxidized linolenic acid. The properties of the water extract were similar to those shown by others for the products of prolonged autoxidation (without UV-irradiation) of emulsified methyl linoleate.
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