ID   DPHB_METLZ              Reviewed;         252 AA.
AC   A2SQF6;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-MAR-2007, sequence version 1.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=Diphthine synthase {ECO:0000255|HAMAP-Rule:MF_01084};
DE            EC=2.1.1.98 {ECO:0000255|HAMAP-Rule:MF_01084};
DE   AltName: Full=Diphthamide biosynthesis methyltransferase {ECO:0000255|HAMAP-Rule:MF_01084};
GN   Name=dphB {ECO:0000255|HAMAP-Rule:MF_01084}; OrderedLocusNames=Mlab_0386;
OS   Methanocorpusculum labreanum (strain ATCC 43576 / DSM 4855 / Z).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanomicrobiales; Methanocorpusculaceae; Methanocorpusculum.
OX   NCBI_TaxID=410358;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43576 / DSM 4855 / Z;
RX   PubMed=21304657; DOI=10.4056/sigs.35575;
RA   Anderson I.J., Sieprawska-Lupa M., Goltsman E., Lapidus A., Copeland A.,
RA   Glavina Del Rio T., Tice H., Dalin E., Barry K., Pitluck S., Hauser L.,
RA   Land M., Lucas S., Richardson P., Whitman W.B., Kyrpides N.C.;
RT   "Complete genome sequence of Methanocorpusculum labreanum type strain Z.";
RL   Stand. Genomic Sci. 1:197-203(2009).
CC   -!- FUNCTION: S-adenosyl-L-methionine-dependent methyltransferase that
CC       catalyzes the trimethylation of the amino group of the modified target
CC       histidine residue in translation elongation factor 2 (EF-2), to form an
CC       intermediate called diphthine. The three successive methylation
CC       reactions represent the second step of diphthamide biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01084}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-[(3S)-amino-3-carboxypropyl]-L-histidyl-[translation
CC         elongation factor 2] + 3 S-adenosyl-L-methionine = diphthine-
CC         [translation elongation factor 2] + 3 H(+) + 3 S-adenosyl-L-
CC         homocysteine; Xref=Rhea:RHEA:36415, Rhea:RHEA-COMP:9749, Rhea:RHEA-
CC         COMP:10172, ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:73995, ChEBI:CHEBI:82696; EC=2.1.1.98;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01084};
CC   -!- PATHWAY: Protein modification; peptidyl-diphthamide biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01084}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01084}.
CC   -!- SIMILARITY: Belongs to the diphthine synthase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01084}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000559; ABN06562.1; -; Genomic_DNA.
DR   RefSeq; WP_011832763.1; NC_008942.1.
DR   AlphaFoldDB; A2SQF6; -.
DR   SMR; A2SQF6; -.
DR   STRING; 410358.Mlab_0386; -.
DR   EnsemblBacteria; ABN06562; ABN06562; Mlab_0386.
DR   GeneID; 4794720; -.
DR   KEGG; mla:Mlab_0386; -.
DR   eggNOG; arCOG04161; Archaea.
DR   HOGENOM; CLU_066040_0_0_2; -.
DR   OMA; TAGDPMV; -.
DR   OrthoDB; 102360at2157; -.
DR   UniPathway; UPA00559; -.
DR   Proteomes; UP000000365; Chromosome.
DR   GO; GO:0004164; F:diphthine synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   GO; GO:0017183; P:peptidyl-diphthamide biosynthetic process from peptidyl-histidine; IEA:UniProtKB-UniRule.
DR   CDD; cd11647; DHP5_DphB; 1.
DR   Gene3D; 3.30.950.10; -; 1.
DR   Gene3D; 3.40.1010.10; -; 1.
DR   HAMAP; MF_01084; Diphthine_synth; 1.
DR   InterPro; IPR000878; 4pyrrol_Mease.
DR   InterPro; IPR035996; 4pyrrol_Methylase_sf.
DR   InterPro; IPR014777; 4pyrrole_Mease_sub1.
DR   InterPro; IPR014776; 4pyrrole_Mease_sub2.
DR   InterPro; IPR004551; Dphthn_synthase.
DR   PANTHER; PTHR10882; PTHR10882; 1.
DR   Pfam; PF00590; TP_methylase; 1.
DR   PIRSF; PIRSF036432; Diphthine_synth; 1.
DR   SUPFAM; SSF53790; SSF53790; 1.
DR   TIGRFAMs; TIGR00522; dph5; 1.
PE   3: Inferred from homology;
KW   Methyltransferase; Reference proteome; S-adenosyl-L-methionine;
KW   Transferase.
FT   CHAIN           1..252
FT                   /note="Diphthine synthase"
FT                   /id="PRO_1000064820"
FT   BINDING         9
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         85
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         88
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         113..114
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         165
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         204
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         229
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
SQ   SEQUENCE   252 AA;  27852 MW;  4BD7E5DB16CAF8E1 CRC64;
     MLTFIGLGLF DEYDVSVRGL DAIKSADTVF LEVYTSVLMG APIERLEAFY GKKITPLYRE
     DVEIHADKIL DAAEFGNAVF LTAGDSMVAT THSDLRIRAA DRNIPTTIIH GASITTAVCG
     LSGLQNYRFG KSVSVPFPYG KWFPMTPIEV ISANLKENLH TLVFLDIQKD KERYMKISEA
     VDLLEEQARR VDAGIPLYVG IARAGSPEPT VHAGNAEEMK AFDFGSPLHI LIVPATLHEI
     EREYLERFAG LC