Cryo-EM structure of FLNaABD E254K bound to phalloidin-stabilized F-actin

(2S,4S)-2-amino-4,5-dihydroxy-4-methylpentanoic acid

Structural basis of the filamin A actin-binding domain interaction with F-actin.

Helical complex of FLNaABD E254K bound to phalloidin-stabilized F-actin

Micrographs from only one of the grids were used in the reconstruction. From that grid, only micrographs where Gctf detected signal at resolutions better than 4A were used in the reconstruction (~15%).

FLN-A, Actin-binding protein 280, ABP-280, Alpha-filamin, Endothelial actin-binding protein, Filamin-1, Non-muscle filamin

MHHHHHHGSLVPRSENLYFQGSDILQGTMSSSHSRAGQSAAGAAPGGGVDTRDAEMPATEKDLAEDAPWKKIQQNTFTRW
CNEHLKCVSKRIANLQTDLSDGLRLIALLEVLSQKKMHRKHNQRPTFRQMQLENVSVALEFLDRESIKLVSIDSKAIVDG
NLKLILGLIWTLILHYSISMPMWDEEEDEEAKKQTPKQRLLGWIQNKLPQLPITNFSRDWQSGRALGALVDSCAPGLCPD
WDSWDASKPVTNAREAMQQADDWLGIPQVITPEEIVDPNVDKHSVMTYLSQFPKAKLKPGAPLRPK

DEDETTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIITNWD
DMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVT
HNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSY
ELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITAL
APSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHRKCF

FLNaABD E254K bound to phalloidin-stabilized F-actin

FLNaABD-Q170P bound to phalloidin-stabilized F-actin

FLNaABD-WT bound to phalloidin-stabilized F-actin

Fluorescent microscopy co-localization studies, actin co-sedimentation assays, etc
Actin-binding domain, Actin crosslinker, STRUCTURAL PROTEIN

MSSSHSRAGQSAAGAAPGGGVDTRDAEMPATEKDLAEDAPWKKIQQNTFTRWCNEHLKCVSKRIANLQTDLSDGLRLIAL
LEVLSQKKMHRKHNQRPTFRQMQLENVSVALEFLDRESIKLVSIDSKAIVDGNLKLILGLIWTLILHYSISMPMWDEEED
EEAKKQTPKQRLLGWIQNKLPQLPITNFSRDWQSGRALGALVDSCAPGLCPDWDSWDASKPVTNAREAMQQADDWLGIPQ
VITPEEIVDPNVDEHSVMTYLSQFPKAKLKPGAPLRPK