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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Protein+Sci 2014 ; 23 (12): 1698-707 Nephropedia Template TP
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Structures of a pan-specific antagonist antibody complexed to different isoforms of TGF? reveal structural plasticity of antibody?antigen interactions #MMPMID25209176
Moulin A; Mathieu M; Lawrence C; Bigelow R; Levine M; Hamel C; Marquette JP; Le Parc J; Loux C; Ferrari P; Capdevila C; Dumas J; Dumas B; Rak A; Bird J; Qiu H; Pan CQ; Edmunds T; Wei RR
Protein Sci 2014[Dec]; 23 (12): 1698-707 PMID25209176show ga
Various important biological pathways are modulated by TGF? isoforms; as such they are potential targets for therapeutic intervention. Fresolimumab, also known as GC1008, is a pan-TGF? neutralizing antibody that has been tested clinically for several indications including an ongoing trial for focal segmental glomerulosclerosis. The structure of the antigen-binding fragment of fresolimumab (GC1008 Fab) in complex with TGF?3 has been reported previously, but the structural capacity of fresolimumab to accommodate tight interactions with TGF?1 and TGF?2 was insufficiently understood. We report the crystal structure of the single-chain variable fragment of fresolimumab (GC1008 scFv) in complex with target TGF?1 to a resolution of 3.00 Å and the crystal structure of GC1008 Fab in complex with TGF?2 to 2.83 Å. The structures provide further insight into the details of TGF? recognition by fresolimumab, give a clear indication of the determinants of fresolimumab pan-specificity and provide potential starting points for the development of isoform-specific antibodies using a fresolimumab scaffold.4KV5; 4KXZ