Crystal structure of Methanobrevibacter smithii Dph2 in complex with Methanobrevibacter smithii elongation factor 2

The Crystal Structure of Dph2 in Complex with Elongation Factor 2 Reveals the Structural Basis for the First Step of Diphthamide Biosynthesis.

2-(3-amino-3-carboxypropyl)histidine synthase

GSHMSMYNMDLDKVIRKINKKGARTVGLQFPEGLKMQAVKIAKAIESQTPATVIISGDPCFGACDVSDYKMKGSVDLIVH
YGHTPLPLKYEVPTLFIEAFSNIDVKKDLEKCLEKLEDYSKIALVTTTQHLHLLNEIKDYLEDNGKEVVLGSSKNTKKGQ
VLGCNFSSIKNLDAEVYLFIGSGNFHPLGIYLFTKSPVLALDPYNSEIRDISAFADRILRIRFARITKAREAEKWGIIVS
SKEGQYRMKLAKEIKKILEDNKMEAYIIMADNINPDILLPYMELDAFVVSACPRIAIDDSQMYKKPLLTPQELEIVLNKR
QWENYQLDEILFHERYK

GSGMSRREKMIAKIKDLMYKPDSIRNIGICAHIDHGKTTLSDNLLAGAGMISEELAGDQRFLDFDEQEQARGITIDAANV
SMVHNYKDEEYLINLIDTPGHVDFGGDVTRAMRAVDGAVVVVCAVEGIMPQTETVLRQALKENVKPVLFINKVDRLINEL
KLEPEELQKRFINIYMEANKLIKNMAPEDKKEEWAVDFTDGSVAFGSAYHNWAINVPMMQETGVNFKDIIDYCNDDKQKE
LAQKVPLSEVLLGMVVEHLPSPKVSQEYRVPNIWEGDIESPAGQGMITTSPDGPLAVMVTNVSVDKHAGEIATGRVYGGS
IEKGTEVYLVGSHSKSRVQQVGVYFGPERVNTDAVPAGNIVYVAGAKGAIAGETICSPEDKIKEFEGLDHISEPVVTVAV
EAKNTKDLPKLIEVLRQVAKEDPTIKVEINEETGEHLVSGMGELHLEVISYRIKDKGVEIQTSEPIVVYRETVSQLSPQV
EGKSPNKHNRFYITVEPLEDELFKALQEGKLKEGKVKGKESANDFMEYGLDKEEARKVWDVYNRSVFINATRGIQYLDEV
KELLIEGFESALNDGPLAKEIAMGLKFKLHDAKLHEDAVHRGPAQVLPAIRNAIYASMMSAGPTLLEPMQKVFINTPQDY
MGPCTREIQNRRGQIVDMGQEGDMATIESKVPVAEMFGFAGDIRSAAEGRCLWSTEMSGFERLPREMQNQIVKEIRQRKG
LSPEPYGPEHYVG

The reservoir solution contained 100 mM Tris, pH 7.2, 200 mM MgSO4, and 21 % (w/v) PEG400; NaCl was added to the reservoir to a final concentration of 300 mM after forming the drop

Department of Energy (DOE, United States)

National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Methanobrevibacter smithii Dph2, Pyrococcus horikoshii EF-2 (5H7J)

Radical, S-adenosylmethionine, enzyme, iron sulfur cluster, TRANSFERASE

MSMYNMDLDKVIRKINKKGARTVGLQFPEGLKMQAVKIAKAIESQTPATVIISGDPCFGACDVSDYKMKGSVDLIVHYGH
TPLPLKYEVPTLFIEAFSNIDVKKDLEKCLEKLEDYSKIALVTTTQHLHLLNEIKDYLEDNGKEVVLGSSKNTKKGQVLG
CNFSSIKNLDAEVYLFIGSGNFHPLGIYLFTKSPVLALDPYNSEIRDISAFADRILRIRFARITKAREAEKWGIIVSSKE
GQYRMKLAKEIKKILEDNKMEAYIIMADNINPDILLPYMELDAFVVSACPRIAIDDSQMYKKPLLTPQELEIVLNKRQWE
NYQLDEILFHERYK

MSRREKMIAKIKDLMYKPDSIRNIGICAHIDHGKTTLSDNLLAGAGMISEELAGDQRFLDFDEQEQARGITIDAANVSMV
HNYKDEEYLINLIDTPGHVDFGGDVTRAMRAVDGAVVVVCAVEGIMPQTETVLRQALKENVKPVLFINKVDRLINELKLE
PEELQKRFINIYMEANKLIKNMAPEDKKEEWAVDFTDGSVAFGSAYHNWAINVPMMQETGVNFKDIIDYCNDDKQKELAQ
KVPLSEVLLGMVVEHLPSPKVSQEYRVPNIWEGDIESPAGQGMITTSPDGPLAVMVTNVSVDKHAGEIATGRVYGGSIEK
GTEVYLVGSHSKSRVQQVGVYFGPERVNTDAVPAGNIVYVAGAKGAIAGETICSPEDKIKEFEGLDHISEPVVTVAVEAK
NTKDLPKLIEVLRQVAKEDPTIKVEINEETGEHLVSGMGELHLEVISYRIKDKGVEIQTSEPIVVYRETVSQLSPQVEGK
SPNKHNRFYITVEPLEDELFKALQEGKLKEGKVKGKESANDFMEYGLDKEEARKVWDVYNRSVFINATRGIQYLDEVKEL
LIEGFESALNDGPLAKEIAMGLKFKLHDAKLHEDAVHRGPAQVLPAIRNAIYASMMSAGPTLLEPMQKVFINTPQDYMGP
CTREIQNRRGQIVDMGQEGDMATIESKVPVAEMFGFAGDIRSAAEGRCLWSTEMSGFERLPREMQNQIVKEIRQRKGLSP
EPYGPEHYVG