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DPHB_HALS3
ID   DPHB_HALS3              Reviewed;         260 AA.
AC   B0R4W9;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 75.
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=OE_2613R;
OS   Halobacterium salinarum (strain ATCC 29341 / DSM 671 / R1).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Halobacteriaceae; Halobacterium.
OX   NCBI_TaxID=478009;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29341 / DSM 671 / R1;
RX   PubMed=18313895; DOI=10.1016/j.ygeno.2008.01.001;
RA   Pfeiffer F., Schuster S.C., Broicher A., Falb M., Palm P., Rodewald K.,
RA   Ruepp A., Soppa J., Tittor J., Oesterhelt D.;
RT   "Evolution in the laboratory: the genome of Halobacterium salinarum strain
RT   R1 compared to that of strain NRC-1.";
RL   Genomics 91:335-346(2008).
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}.
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DR   EMBL; AM774415; CAP13784.1; -; Genomic_DNA.
DR   RefSeq; WP_012289280.1; NC_010364.1.
DR   AlphaFoldDB; B0R4W9; -.
DR   SMR; B0R4W9; -.
DR   EnsemblBacteria; CAP13784; CAP13784; OE_2613R.
DR   GeneID; 5952837; -.
DR   KEGG; hsl:OE_2613R; -.
DR   HOGENOM; CLU_066040_0_0_2; -.
DR   OMA; TAGDPMV; -.
DR   PhylomeDB; B0R4W9; -.
DR   UniPathway; UPA00559; -.
DR   Proteomes; UP000001321; 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; S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..260
FT                   /note="Diphthine synthase"
FT                   /id="PRO_1000136875"
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         168
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         208
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT   BINDING         233
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
SQ   SEQUENCE   260 AA;  27346 MW;  629BB45EFF8B2645 CRC64;
     MLTFVGLGLY DEASVTVAGR DAIAAADRVF AEFYTSRLIG TDVAALEAHH DTTIERRDRA
     GVEQHPEPIL DAAADGDAVF LTAGDTMIST THVDLRMRAA DRGIDTRVIH APTAASAAAG
     LTGLQNYRFG KATTLPFPWA HGADGVPGSV TDTIEANRER GLHTLVYLDI KVDHPRVDGD
     AYMTASQAAD LLATNWDADA LGVVVARAGA PDATVRADRL GALADADFGS PLHLLVVPGS
     LHHIERDALR ELAGAPADAL
 
 
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