586 Result(s)

Article

Direct binding of G-protein βλ complex to voltage-dependent calcium channels

Voltage-dependent Ca²⁺ channels play a central role in controlling neurotransmitter release at the synapse^1,2. They can be inhibited by certain G-protein-coupled receptors, acting by a pathway intrinsic to the me...

Michel De Waard, Hongyan Liu, Denise Walker, Victoria E. S. Scott… in Nature (1997)

Article

Crustal structure in western Tibetan Plateau

Shaobai **ong, Hongbing Liu in Chinese Science Bulletin (1997)

Article

Synthesis and crystal structure of SrNi_xV_6-x O₁₁

In SrV₆O₁₁ the M(3) sites are mainly occupied by trivalent cations; while M(l) and M (2) sites are taken by mixing of trivalent and tetravalent cations, the content of tetravalent is higher than that of trivalent...

Hongchao Liu, Changlin Guo, Hengyong Tu in Chinese Science Bulletin (1997)

Article

Study on uranium I odd parity energy levels using chemical pattern recognition techniques

**aowei Cao, Honglin Liu, Nianyi Chen in Chinese Science Bulletin (1997)

Article

Cloning of theAspergillus awamori glucoamylase gene and expression inSaccharomyces cerevisiae

TheA. awamori glucoamylase I gene was obtained by RT-PCR and inserted into the plasmid pAC1. We constructed an expression vector pAC1-CA, which was used to transform the yeast S.cerevisiae AS 2.1364 without auxot...

Yongji Wang, Hongdi Liu, Tong Sun, Shuzheng Zhang in Chinese Science Bulletin (1998)

Article

Secretory expression of the fusion protein composed of human IL-2 and PreS antigen of hepatitis B virus in mammalian cells

In order to make entire HBV pmSAg secrete from mammalian cells, we conatmcted an eukaryotic expression vector by using leader sequence of human interleukin-2 (IL-2) as secretory signal peptide, and using high ...

Zhangguo Chen, Dalong Ma, **g Wang, Yingmei Zhang, Yong Yuan… in Chinese Science Bulletin (1998)

Article

Production of human neurotrophin-3 in baculovirus expression system

Human NT-3 gene was inserted into pPAK9 and the resultant plasmid was used to co-transfect sf21 cells with Bsu36 I digested Bac6 genomic DNA. Recombinant baculovirus was isolated by plaque assay. Slot-hybridiz...

Yuanyue Mu, Hong Liu, Jie Zhang, Shuhong Liu, Yan Wu… in Chinese Science Bulletin (1998)

Article

Expression of human β-subunit nerve growth factor (hNGFB) in yeastPichia pastoris andE. coli

The gene hNGFB encoding the β subunit of human nerve growth factor (hNGF) was cloned intoP. pastoris secretive expression vector pHIL-S1 andE. coli expression vector pET-15b. The recombinant hNGFB vectors pSNGF a...

Qiao Fan, Hongdi Liu, Tong Sun, Rongqiao He in Chinese Science Bulletin (1999)

Article

Phase-shifting technique applied to circular harmonic-based joint transform correlator

The phase-shifting technique is applied to the circular harmonic expansion-based joint transform correlator. Computer simulation has shown that the light efficiency and the discrimination capability are greatl...

Jiuhong Guan, Zhaoqi Wang, Hongli Liu, Baolai Liang… in Chinese Science Bulletin (2000)

Article

Inverse kinematics model of parallel macro-micro manipulator system

An improved design, which employs the integration of optic, mechanical and electronic technologies for the next generation large radio telescope, is presented in this note. The authors propose the concept of p...

Wenli Wang, Baoyan Duan, Hong Liu, Rendong Nan, Bo Peng in Chinese Science Bulletin (2000)

Article

A novel differential velocity modulation laser spectroscopy

Experimental investigation of a novel differential velocity modulation laser spectroscopy is reported and demonstrated with the spectra of n ₂ ⁺ A²D_m -X₂Ó ...

Yuyan Liu, Hui Gao, Hong** Liu, Chuanxi Duan, Jieli Lin… in Chinese Science Bulletin (2001)

Article

Research on crystal growth and properties of a new nonlinear optical crystal: Bismuth borate BiB₃O₆

BiB₃O₆ (BIBO) single crystals with sizes of 44 mm × 24 mm × 10 mm and weight of 24.7 g have been successfully grown by the top-seeded method. In this note, the preparation of seed, the growth of crystal and some ...

Bing Teng, Jiyang Wang, Zheng** Wang, Huaidong Jiang… in Chinese Science Bulletin (2001)

Article

Decay dynamics of excited CS₂ and NH₃ investigated by femtosecond laser

By using the home-made femtosecond laser system and the time-of-flight mass spectrometer, the decay dynamics of excited carbon disulfide (CS₂) and ammonia (NH₃) are investigated in real time by pump-probe multiph...

Jianyang Zhang, Hong** Liu, Shuhui Ying, Bo Jiang, Dali Xu… in Chinese Science Bulletin (2002)

Article

Effects of calmodulin on DNA-binding activity of heat shock transcription factorin vitro

The DNA-binding activity of heat shock transcription factor (HSF) was induced by heat shock (HS) of a whole cell extract. Addition of antiserum, specific to CaM, to a whole cell extract reduced bind of the HSF...

Bing Li, Hongtao Liu, Ruiling Mu, Daye Sun, Rengang Zhou in Chinese Science Bulletin (2003)

Article

Comparative genome analysis of deleted genes in Shigella flexneri 2a strain 301

Comparative genome analysis is performed between Shigella flexneri 2a strain 301 and its close relatives, the non-pathogenic E. coli K-12 strain MG1655. Result shows that there are 136 DNA segments whose size is ...

**aobing Zhang, Hong Liu, Fan Yang, Jian Yang, Ying Xue… in Chinese Science Bulletin (2003)

Article

Study of an athermal infrared dual band optical system design containing harmonic diffractive element

A harmonic diffractive element (HDE) is first successfully introduced to the athermal system of infrared dual band in this paper. In this system, there are only three lens and two materials, silicon and german...

Qiang Sun, Zhaoqi Wang, Fengyou Li, Hongli Liu, Zhenwu Lu… in Chinese Science Bulletin (2003)

Article

Contributions of different land cover types in Otindag Sandy Land and Bashang area of Hebei Province to the material source of sand stormy weather in Bei**g

Different land cover types in Otindag Sandy Land and Bashang area of Hebei Province are linked to a material source of sand stormy weather in Bei**g based on results of field vegetation and soil survey and la...

Hongyan Liu, Yuhong Tian, Deng Ding in Chinese Science Bulletin (2003)

Article

Analysis of components of conserved “backbone sequences” among genomes ofShigella spp. strains

Difference in the genomic compositions of prokaryotes is the basis of the diversity in their biological characters. However, besides their flora- or strain-specific genes, those floras with closer relationship...

Hong Liu, Jun** Peng, Jian Yang, Lilian Sun, Shuxia Chen… in Chinese Science Bulletin (2004)