DPHB_HALLT
ID DPHB_HALLT Reviewed; 265 AA.
AC B9LV13;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 71.
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=Hlac_0892;
OS Halorubrum lacusprofundi (strain ATCC 49239 / DSM 5036 / JCM 8891 / ACAM
OS 34).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Halorubraceae; Halorubrum.
OX NCBI_TaxID=416348;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 49239 / DSM 5036 / JCM 8891 / ACAM 34;
RX PubMed=27617060; DOI=10.1186/s40793-016-0194-2;
RA Anderson I.J., DasSarma P., Lucas S., Copeland A., Lapidus A.,
RA Del Rio T.G., Tice H., Dalin E., Bruce D.C., Goodwin L., Pitluck S.,
RA Sims D., Brettin T.S., Detter J.C., Han C.S., Larimer F., Hauser L.,
RA Land M., Ivanova N., Richardson P., Cavicchioli R., DasSarma S.,
RA Woese C.R., Kyrpides N.C.;
RT "Complete genome sequence of the Antarctic Halorubrum lacusprofundi type
RT strain ACAM 34.";
RL Stand. Genomic Sci. 11:70-70(2016).
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; CP001365; ACM56490.1; -; Genomic_DNA.
DR RefSeq; WP_015909641.1; NC_012029.1.
DR AlphaFoldDB; B9LV13; -.
DR SMR; B9LV13; -.
DR STRING; 416348.Hlac_0892; -.
DR EnsemblBacteria; ACM56490; ACM56490; Hlac_0892.
DR GeneID; 7401263; -.
DR KEGG; hla:Hlac_0892; -.
DR eggNOG; arCOG04161; Archaea.
DR HOGENOM; CLU_066040_0_0_2; -.
DR OMA; TAGDPMV; -.
DR UniPathway; UPA00559; -.
DR Proteomes; UP000000740; Chromosome 1.
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..265
FT /note="Diphthine synthase"
FT /id="PRO_1000149853"
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 211
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT BINDING 236
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
SQ SEQUENCE 265 AA; 28225 MW; 45175C0AC8241014 CRC64;
MLTFIGLGLY DERSITVEGR EALRSADRVF AEFYTSRLVG ADVDDLEAYH DTEIEVRARE
GVEQDPEAIL AAAEDGHTAF LTAGDTMIST THTDLRLRAE ERGIDTRVIH GVTAQSAASS
LTGLQNYRFG KATTLPFPYA HGGDDVPGSV IDTIEANRER GLHTVVYLDI KVGTGPTGPD
PDHEEYMTAD VAAGLLADGW EDALAVVVAR AGSPDAVVAA DRLSALADRE FGDPLHLLVI
PGDLHHVEAD ALVGLAGAPA ELVEE
