至今,GenScript的服务及产品已被Cell, Nature, Science, PNAS等1300多家生物医药类杂志引用近万次,处于行业领先水平。NIH、哈佛、耶鲁、斯坦福、普林斯顿、杜克大学等约400家全球著名机构使用GenScript的基因合成、多肽服务、抗体服务和蛋白服务等成功地发表科研成果,再次证明GenScript 有能力帮助业内科学家Make research easy.

Structure and function relationship of OqxB efflux pump from Klebsiella pneumoniae

Nat Commun. 2021-09; 
Nagakumar Bharatham, Purnendu Bhowmik, Maho Aoki, Ui Okada, Sreevalli Sharma, Eiki Yamashita, Anirudh P Shanbhag, Sreenath Rajagopal, Teby Thomas, Maitrayee Sarma, Riya Narjari, Savitha Nagaraj, Vasanthi Ramachandran, Nainesh Katagihallimath, Santanu Datta, Satoshi Murakami
Products/Services Used Details Operation
DNA Sequencing … While the acrAB and oqxAB, along with a constitutive promoter sequence, were fused with a vector backbone containing the pBR322_origin and Ampicillin resistance gene (from the vector pTrc99a, Genscript) using the NdeI and HindIII restriction sites. The strains used for the … Get A Quote

摘要

OqxB is an RND (Resistance-Nodulation-Division) efflux pump that has emerged as a factor contributing to the antibiotic resistance in Klebsiella pneumoniae. OqxB underwent horizontal gene transfer and is now seen in other Gram-negative bacterial pathogens including Escherichia coli, Enterobacter cloacae and Salmonella spp., further disseminating multi-drug resistance. In this study, we describe crystal structure of OqxB with n-dodecyl-β-D-maltoside (DDM) molecules bound in its substrate-binding pocket, at 1.85 Å resolution. We utilize this structure in computational studies to predict the key amino acids contributing to the efflux of fluoroquinolones by OqxB, distinct from analogous residues in related tran... More

关键词