DETERMINATION OF THE NUMBER OF DETERGENT MOLECULES ASSOCIATED WITH THE REACTION-CENTER PROTEIN ISOLATED FROM THE PHOTOSYNTHETIC BACTERIUM RHODOPSEUDOMONAS-VIRIDIS - EFFECTS OF THE AMPHIPHILIC MOLECULE 1,2,3-HEPTANETRIOL

被引:34
作者
GAST, P
HEMELRIJK, P
HOFF, AJ
机构
[1] Department of Biophysics, Huygens Laboratory, 2300 RA Leiden
关键词
PHOTOSYNTHESIS; MEMBRANE PROTEIN; DETERGENT; HEPTANETRIOL; BIO-BEADS;
D O I
10.1016/0014-5793(94)80625-X
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Detergent-free reaction center (RC) proteins from the photosynthetic bacterium Rhodopseudomonas viridis were obtained using Bio-Beads SM-2. With these RCs, the amount of detergent molecules associated with the protein was measured by determining the detergent concentration al which re-solubilization occurred as a function of the RC concentration. For N,N-dimethyl dodecylamine-N-oxide (LDAO), Triton X-100 and B-octylglucoside 260 +/- 30,105 +/- 10 and 360 +/- 100 detergent molecules were necessary to dissolve the protein, respectively. With this technique we have studied the effect of the amphiphilic molecule 1,2,3-heptanetriol, which is essential in the crystallization process of these RCs. Addition of 5% 1,2,3-heptanetriol reduces the value for LDAO to 120 +/- 20 LDAO/RC, supporting the notion that crystallization of the RCs is promoted by increasing the number of protein-protein contacts.
引用
收藏
页码:39 / 42
页数:4
相关论文
共 18 条
[1]   CRYSTALLIZATION OF REACTION CENTER FROM RHODOPSEUDOMONAS-SPHAEROIDES - PRELIMINARY CHARACTERIZATION [J].
ALLEN, JP ;
FEHER, G .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES, 1984, 81 (15) :4795-4799
[2]   STRUCTURAL HOMOLOGY OF REACTION CENTERS FROM RHODOPSEUDOMONAS-SPHAEROIDES AND RHODOPSEUDOMONAS-VIRIDIS AS DETERMINED BY X-RAY-DIFFRACTION [J].
ALLEN, JP ;
FEHER, G ;
YEATES, TO ;
REES, DC ;
DEISENHOFER, J ;
MICHEL, H ;
HUBER, R .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1986, 83 (22) :8589-8593
[3]   CHARACTERIZATION OF BACTERIAL PHOTOSYNTHETIC REACTION CENTER CRYSTALS FROM RHODOPSEUDOMONAS-SPHAEROIDES R-26 BY X-RAY-DIFFRACTION [J].
CHANG, CH ;
SCHIFFER, M ;
TIEDE, D ;
SMITH, U ;
NORRIS, J .
JOURNAL OF MOLECULAR BIOLOGY, 1985, 186 (01) :201-203
[4]   MOLAR EXTINCTION COEFFICIENTS AND OTHER PROPERTIES OF AN IMPROVED REACTION CENTER PREPARATION FROM RHODOPSEUDOMONAS-VIRIDIS [J].
CLAYTON, RK ;
CLAYTON, BJ .
BIOCHIMICA ET BIOPHYSICA ACTA, 1978, 501 (03) :478-487
[5]   HIGH-RESOLUTION OPTICAL ABSORPTION-DIFFERENCE SPECTRA OF THE TRIPLET-STATE OF THE PRIMARY DONOR IN ISOLATED REACTION CENTERS OF THE PHOTOSYNTHETIC BACTERIA RHODOPSEUDOMONAS-SPHAEROIDES R-26 AND RHODOPSEUDOMONAS-VIRIDIS MEASURED WITH OPTICALLY DETECTED MAGNETIC-RESONANCE AT 1.2-K [J].
DENBLANKEN, HJ ;
HOFF, AJ .
BIOCHIMICA ET BIOPHYSICA ACTA, 1982, 681 (03) :365-374
[6]   PRELIMINARY CHARACTERIZATION BY X-RAY-DIFFRACTION OF CRYSTALS OF PHOTOCHEMICAL-REACTION CENTERS FROM WILD-TYPE RHODOPSEUDOMONAS-SPHEROIDES [J].
DUCRUIX, A ;
REISSHUSSON, F .
JOURNAL OF MOLECULAR BIOLOGY, 1987, 193 (02) :419-421
[7]   CRYSTALLIZATION AND PRELIMINARY-X-RAY AND OPTICAL SPECTROSCOPIC CHARACTERIZATION OF THE PHOTOCHEMICAL-REACTION CENTER FROM RHODOBACTER-SPHAEROIDES STRAIN-2.4.1 [J].
FRANK, HA ;
TAREMI, SS ;
KNOX, JR .
JOURNAL OF MOLECULAR BIOLOGY, 1987, 198 (01) :139-141
[8]   ELECTRON-PARAMAGNETIC-RES DETECTED TRIPLET FORMATION IN A SINGLE-CRYSTAL OF REACTION CENTER PROTEIN FROM THE PHOTOSYNTHETIC BACTERIUM RHODOPSEUDOMONAS-SPHAEROIDES R-26 [J].
GAST, P ;
NORRIS, JR .
FEBS LETTERS, 1984, 177 (02) :277-280
[9]   SOLUBILIZATION OF MEMBRANES BY DETERGENTS [J].
HELENIUS, A ;
SIMONS, K .
BIOCHIMICA ET BIOPHYSICA ACTA, 1975, 415 (01) :29-79
[10]   SIMPLE PROCEDURE FOR REMOVAL OF TRITON X-100 FROM PROTEIN SAMPLES [J].
HOLLOWAY, PW .
ANALYTICAL BIOCHEMISTRY, 1973, 53 (01) :304-308