PMID- 10380930 OWN - NLM STAT- MEDLINE DCOM- 19990722 LR - 20220318 IS - 0092-8674 (Print) IS - 0092-8674 (Linking) VI - 97 IP - 6 DP - 1999 Jun 11 TI - Structure of a heterophilic adhesion complex between the human CD2 and CD58 (LFA-3) counterreceptors. PG - 791-803 AB - Interaction between CD2 and its counterreceptor, CD58 (LFA-3), on opposing cells optimizes immune recognition, facilitating contacts between helper T lymphocytes and antigen-presenting cells as well as between cytolytic effectors and target cells. Here, we report the crystal structure of the heterophilic adhesion complex between the amino-terminal domains of human CD2 and CD58. A strikingly asymmetric, orthogonal, face-to-face interaction involving the major beta sheets of the respective immunoglobulin-like domains with poor shape complementarity is revealed. In the virtual absence of hydrophobic forces, interdigitating charged amino acid side chains form hydrogen bonds and salt links at the interface (approximately 1200 A2), imparting a high degree of specificity albeit with low affinity (K(D) of approximately microM). These features explain CD2-CD58 dynamic binding, offering insights into interactions of related immunoglobulin superfamily receptors. FAU - Wang, J H AU - Wang JH AD - Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA. jwang@red.dfci.harvard.edu FAU - Smolyar, A AU - Smolyar A FAU - Tan, K AU - Tan K FAU - Liu, J H AU - Liu JH FAU - Kim, M AU - Kim M FAU - Sun, Z Y AU - Sun ZY FAU - Wagner, G AU - Wagner G FAU - Reinherz, E L AU - Reinherz EL LA - eng SI - PDB/1QA9 GR - AI21226/AI/NIAID NIH HHS/United States GR - AI37581/AI/NIAID NIH HHS/United States GR - GM56008/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Cell JT - Cell JID - 0413066 RN - 0 (CD2 Antigens) RN - 0 (CD58 Antigens) RN - 0 (Cell Adhesion Molecules) SB - IM MH - Amino Acid Sequence MH - Animals MH - CD2 Antigens/*chemistry/metabolism MH - CD58 Antigens/*chemistry/metabolism MH - Cell Adhesion Molecules/chemistry MH - Crystallography, X-Ray MH - Humans MH - Models, Molecular MH - Molecular Sequence Data MH - Protein Conformation MH - Rats MH - Sequence Homology, Amino Acid EDAT- 1999/06/25 00:00 MHDA- 1999/06/25 00:01 CRDT- 1999/06/25 00:00 PHST- 1999/06/25 00:00 [pubmed] PHST- 1999/06/25 00:01 [medline] PHST- 1999/06/25 00:00 [entrez] AID - S0092-8674(00)80790-4 [pii] AID - 10.1016/s0092-8674(00)80790-4 [doi] PST - ppublish SO - Cell. 1999 Jun 11;97(6):791-803. doi: 10.1016/s0092-8674(00)80790-4.