在国外的朋友谁能帮我查几篇文献？急用。非常感谢！

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由于我们学校校园网资源有限，很多文献打不开全文，拜托各位帮我打开发我邮箱里，万分感谢！邮箱是marilyn66@163.com
文章题目如下：
1、Molecular characterization of pulA and its product, pullulanase, a secreted enzyme of Klebsiella pneumoniae UNF5023.
2、Recent progress and future directions in studies of the main terminal branch of the general secretory pathway in Gram-negative bacteria
3、The conserved tetracysteine motif in the general secretory pathway component PulE is required for efficient pullulanase secretion
4、Pullulanase: model protein substrate for the general secretory pathway of gram-negative bacteria.

5、The general protein-export pathway is directly required for extracellular pullulanase secretion in Escherichia coli K12.

6、A gene fusion approach to the study of pullulanase export and secretion in Escherichia coli.

7、Analysis of the subcellular location of pullulanase produced by Escherichia coli carrying the pulA gene from Klebsiella pneumoniae strain UNF5023.

8、Export and secretion of the lipoprotein pullulanase by Klebsiella pneumoniae.

9、Protein secretion by gram-negative bacteria. Characterization of two membrane proteins required for pullulanase secretion by Escherichia coli K-12

10、Genetic dissection of the outer membrane secretin PulD: are there distinct domains for multimerization and secretion specificity?
再次感谢！！