Cellular and Molecular Life Sciences

, 68:3469

Cistrans interactions of cell surface receptors: biological roles and structural basis

Authors

    • Ludwig Center for Cancer Research of the University of Lausanne
  • Roy A. Mariuzza
    • University of Maryland Biotechnology Institute for Bioscience and Biotechnology Research
    • Department of Cell Biology and Molecular GeneticsUniversity of Maryland
Multi-author review

DOI: 10.1007/s00018-011-0798-z

Cite this article as:
Held, W. & Mariuzza, R.A. Cell. Mol. Life Sci. (2011) 68: 3469. doi:10.1007/s00018-011-0798-z

Abstract

Cell surface receptors bind ligands expressed on other cells (in trans) in order to communicate with neighboring cells. However, an increasing number of cell surface receptors are found to also interact with ligands expressed on the same cell (in cis). These observations raise questions regarding the biological role of such cis interactions. Specifically, it is important to know whether cis and trans binding have distinct functional effects and, if so, how a single cell discriminates between interactions in cis versus trans. Further, what are the structural features that allow certain cell surface receptors to engage ligand both on the same as well as on an apposed cell membrane? Here, we summarize known examples of receptors that display cistrans binding and discuss the emerging diversity of biological roles played by these unconventional two-way interactions, along with their structural basis.

Keywords

NK cell receptorLy49LILRB/PIR-BMHCNotchCis interactionTrans interactionNK cell education

Abbreviations

BCR

B cell receptor

BTLA

B and T lymphocyte attenuator

HVEM

Herpesvirus entry mediator

Ig

Immunoglobulin

LILRB

Leukocyte immunoglobulin-like receptor B

MHC-I

Major histocompatibility complex class I

PIR-B

Paired immunoglobulin-like receptor-B

Siglec

Sialic acid-binding immunoglobulin-like lectin

Copyright information

© Springer Basel AG 2011