Selective detection of protein crystals by second harmonic microscopy.
Selective detection of protein crystals by second harmonic microscopy.
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DOI:
10.1021/ja805983b
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发表时间:
2008-10-29
影响因子:
15
通讯作者:
Simpson GJ
中科院分区:
文献类型:
--
作者:
Wampler RD;Kissick DJ;Dehen CJ;Gualtieri EJ;Grey JL;Wang HF;Thompson DH;Cheng JX;Simpson GJ
The unique symmetry properties of second harmonic generation (SHG) microscopy enabled sensitive and selective imaging of protein microcrystals with negligible contributions from solvated proteins or amorphous protein aggregates. In studies of microcrystallites of green fluorescent protein (GFP) prepared in 500 pL droplets, the SHG intensities rivaled those of fluorescence, but with superb selectivity for crystalline regions. GFP in amorphous aggregates and in solution produced substantial background fluorescence, but no detectable SHG. The ratio of the forward-to-backward detected SHG provides a measure of the particle size, suggesting detection limits down to crystallites ∼100 nm in diameter under low magnification (10×). In addition to being sensitive and highly selective, second-order nonlinear optical imaging of chiral crystals (SONICC) is directly compatibility with virtually all common protein crystallization platforms.
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DOI:
10.1107/s0907444902016608
发表时间:
2002-11-01
影响因子:
2.2
作者:
Bodenstaff, ER;Hoedemaeker, FJ;Abrahams, JP
通讯作者:
Abrahams, JP
DOI:
10.1107/s0907444904003154
发表时间:
2004-04-01
影响因子:
2.2
作者:
Echalier, A;Glazer, RL;Geday, MA
通讯作者:
Geday, MA
DOI:
10.1107/s0907444902016840
发表时间:
2002-11-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Spraggon, G;Lesley, SA;Priestle, JP
通讯作者:
Priestle, JP
影响因子:
6.1
作者:
Santarsiero, BD;Yegian, DT;Stevens, RC
通讯作者:
Stevens, RC
DOI:
10.1107/s0907444903015130
发表时间:
2003-09-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Cumbaa, CA;Lauricella, A;Jurisica, I
通讯作者:
Jurisica, I