We apologize for Proteopedia being slow to respond. For the past two years, a new implementation of Proteopedia has been being built. Soon, it will replace this 18-year old system. All existing content will be moved to the new system at a date that will be announced here.

3m6f

From Proteopedia

Jump to: navigation, search

CD11A I-domain complexed with 6-((5S,9R)-9-(4-CYANOPHENYL)-3-(3,5-DICHLOROPHENYL)-1-METHYL-2,4-DIOXO-1,3,7- TRIAZASPIRO[4.4]NON-7-YL)NICOTINIC ACID

Structural highlights

3m6f is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.85Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ITAL_HUMAN Integrin alpha-L/beta-2 is a receptor for ICAM1, ICAM2, ICAM3 and ICAM4. It is involved in a variety of immune phenomena including leukocyte-endothelial cell interaction, cytotoxic T-cell mediated killing, and antibody dependent killing by granulocytes and monocytes.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Leukocyte function-associated antigen-1 (LFA-1), also known as CD11a/CD18 or alpha(L)beta(2), belongs to the beta(2) integrin subfamily and is constitutively expressed on all leukocytes. The major ligands of LFA-1 include three intercellular adhesion molecules 1, 2, and 3 (ICAM 1, 2, and 3). The interactions between LFA-1 and the ICAMs are critical for cell adhesion, and preclinical animal studies and clinical data from the humanized anti-LFA-1 antibody efalizumab have provided proof-of-concept for LFA-1 as an immunological target. This article will detail the structure-activity relationships (SAR) leading to a novel second generation series of highly potent spirocyclic hydantoin antagonists of LFA-1. With significantly enhanced in vitro and ex vivo potency relative to our first clinical compound (1), as well as demonstrated in vivo activity and an acceptable pharmacokinetic and safety profile, 6-((5S,9R)-9-(4-cyanophenyl)-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3 ,7-triazaspiro-[4.4]nonan-7-yl)nicotinic acid (2e) was selected to advance into clinical trials.

Small molecule antagonist of leukocyte function associated antigen-1 (LFA-1): structure-activity relationships leading to the identification of 6-((5S,9R)-9-(4-cyanophenyl)-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3 ,7-triazaspiro[4.4]nonan-7-yl)nicotinic acid (BMS-688521).,Watterson SH, Xiao Z, Dodd DS, Tortolani DR, Vaccaro W, Potin D, Launay M, Stetsko DK, Skala S, Davis PM, Lee D, Yang X, McIntyre KW, Balimane P, Patel K, Yang Z, Marathe P, Kadiyala P, Tebben AJ, Sheriff S, Chang CY, Ziemba T, Zhang H, Chen BC, DelMonte AJ, Aranibar N, McKinnon M, Barrish JC, Suchard SJ, Murali Dhar TG J Med Chem. 2010 May 13;53(9):3814-30. PMID:20405922^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Watterson SH, Xiao Z, Dodd DS, Tortolani DR, Vaccaro W, Potin D, Launay M, Stetsko DK, Skala S, Davis PM, Lee D, Yang X, McIntyre KW, Balimane P, Patel K, Yang Z, Marathe P, Kadiyala P, Tebben AJ, Sheriff S, Chang CY, Ziemba T, Zhang H, Chen BC, DelMonte AJ, Aranibar N, McKinnon M, Barrish JC, Suchard SJ, Murali Dhar TG. Small molecule antagonist of leukocyte function associated antigen-1 (LFA-1): structure-activity relationships leading to the identification of 6-((5S,9R)-9-(4-cyanophenyl)-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3 ,7-triazaspiro[4.4]nonan-7-yl)nicotinic acid (BMS-688521). J Med Chem. 2010 May 13;53(9):3814-30. PMID:20405922 doi:10.1021/jm100348u