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The region between the cytoplasmic membrane and the outer cell membrane in gram-negative bacteria and some archaea.

per′i·plas′mic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) biology the region between the outer wall and the inner cytoplasmic membrane of a biological (esp bacterial) cell
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Molecular chaperones are now well established as cytoplasmic and periplasmic chaperones (11, 12).
###including membrane proteins, periplasmic proteins, and endotoxin, into the host cell.143
Jerez, "Cytoplasmic CopZ-like protein and periplasmic rusticyanin and AcoP proteins as possible copper resistance determinants in Acidithiobacillus ferrooxidans ATCC 23270," Applied and Environmental Microbiology, vol.
Because they belong to the group of gram-negative bacteria, these strains are more resistant to the action of antibiotics, because they have an additional external membrane and a periplasmic space that contains enzymes that can degrade xenobiotics (ALBUQUERQUE et al., 2014), such as flavonoids and phenolic acids from propolis.
Outputs from each selection round were screened for antigen-specific binders by monoclonal phage and periplasmic extract ELISAs against human or mouse ICOSL and unrelated protein controls at 1 [micro]g/ml in PBS coating concentration.
In this structure, the transmembrane domain assumes a periplasmic open conformation (Figure 14(c)) [103].
This involves several other proteins along the way such as regulatory protein, polymerase (i.e., the expression of gene), and helper protein (i.e., assist in periplasmic lipase folding) [24, 41, 89, 96].
Hultgren, "FimC is a periplasmic PapDlike chaperone that directs assembly of type 1 pili in bacteria," Proceedings of the National Acadamy of Sciences of the United States of America, vol.
Copper-resistant Pseudomonas syringae strains produced copper-inducible proteins CopA, CopB (periplasmic proteins), and CopC (outer membrane protein) which bind copper ions and microbial colonies [60].
Chakrabarti, "The effect of zinc oxide nanoparticles on the structure of the periplasmic domain of the Vibrio cholerae ToxR protein," FEBS Journal, vol.
Rosenzweig, "The CopC family: structural and bioinformatic insights into a diverse group of periplasmic copper binding proteins," Biochemistry, vol.
OqxAB efflux pump belongs to the resistance nodulation division family and it is constructed by two main domains, namely, OqxA, a periplasmic part, and OqxB, a transmembrane protein.