DPHB_METPE
ID DPHB_METPE Reviewed; 251 AA.
AC B8GIF8;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 03-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 68.
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=Mpal_0116;
OS Methanosphaerula palustris (strain ATCC BAA-1556 / DSM 19958 / E1-9c).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanomicrobiales; Methanoregulaceae; Methanosphaerula.
OX NCBI_TaxID=521011;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1556 / DSM 19958 / E1-9c;
RX PubMed=26543115; DOI=10.1128/genomea.01280-15;
RA Cadillo-Quiroz H., Browne P., Kyrpides N., Woyke T., Goodwin L., Detter C.,
RA Yavitt J.B., Zinder S.H.;
RT "Complete Genome Sequence of Methanosphaerula palustris E1-9CT, a
RT Hydrogenotrophic Methanogen Isolated from a Minerotrophic Fen Peatland.";
RL Genome Announc. 3:0-0(2015).
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; CP001338; ACL15509.1; -; Genomic_DNA.
DR RefSeq; WP_012616828.1; NC_011832.1.
DR AlphaFoldDB; B8GIF8; -.
DR SMR; B8GIF8; -.
DR STRING; 521011.Mpal_0116; -.
DR EnsemblBacteria; ACL15509; ACL15509; Mpal_0116.
DR GeneID; 7272286; -.
DR KEGG; mpl:Mpal_0116; -.
DR eggNOG; arCOG04161; Archaea.
DR HOGENOM; CLU_066040_0_0_2; -.
DR OMA; TAGDPMV; -.
DR OrthoDB; 102360at2157; -.
DR UniPathway; UPA00559; -.
DR Proteomes; UP000002457; 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..251
FT /note="Diphthine synthase"
FT /id="PRO_1000149854"
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 202
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
FT BINDING 227
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01084"
SQ SEQUENCE 251 AA; 26977 MW; CE6E4C6595F5763C CRC64;
MLTFVGLGLY DAGDISVKGL EAVRASDAVF LEYYTSRLMG TTIEDLVRAY GKEVIVLARA
DVEQHPEPIL DAAAAGDVVV LTGGDPMVST THMDLRLRAA ARGIPTGIIH GASIQTAVCG
LTGLQNYRFG KSCSVPFPQK NWFPLTPYEV VRQNLAADLH TLVYLDIQQD RYMRVGEAID
LLEEMAVRVG GSITTYIGVA RAGSVSPVVR AGTADHLRGI DFGGPLHVLI VPATLHPVEQ
EYLEVFAGLS V