ID NTM1_CAEBR Reviewed; 231 AA.
AC A8WVR2;
DT 05-OCT-2010, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 1.
DT 27-MAR-2024, entry version 66.
DE RecName: Full=Alpha N-terminal protein methyltransferase 1;
DE EC=2.1.1.244;
DE AltName: Full=X-Pro-Lys N-terminal protein methyltransferase 1;
DE Short=NTM1;
GN Name=homt-1; ORFNames=CBG03917;
OS Caenorhabditis briggsae.
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Rhabditina; Rhabditomorpha; Rhabditoidea; Rhabditidae; Peloderinae;
OC Caenorhabditis.
OX NCBI_TaxID=6238;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AF16;
RX PubMed=14624247; DOI=10.1371/journal.pbio.0000045;
RA Stein L.D., Bao Z., Blasiar D., Blumenthal T., Brent M.R., Chen N.,
RA Chinwalla A., Clarke L., Clee C., Coghlan A., Coulson A., D'Eustachio P.,
RA Fitch D.H.A., Fulton L.A., Fulton R.E., Griffiths-Jones S., Harris T.W.,
RA Hillier L.W., Kamath R., Kuwabara P.E., Mardis E.R., Marra M.A.,
RA Miner T.L., Minx P., Mullikin J.C., Plumb R.W., Rogers J., Schein J.E.,
RA Sohrmann M., Spieth J., Stajich J.E., Wei C., Willey D., Wilson R.K.,
RA Durbin R.M., Waterston R.H.;
RT "The genome sequence of Caenorhabditis briggsae: a platform for comparative
RT genomics.";
RL PLoS Biol. 1:166-192(2003).
CC -!- FUNCTION: Alpha-N-methyltransferase that methylates the N-terminus of
CC target proteins containing the N-terminal motif [Ala/Pro/Ser]-Pro-Lys
CC when the initiator Met is cleaved. Specifically catalyzes mono-, di- or
CC tri-methylation of exposed alpha-amino group of Ala or Ser residue in
CC the [Ala/Ser]-Pro-Lys motif and mono- or di-methylation of Pro in the
CC Pro-Pro-Lys motif (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=N-terminal L-alanyl-L-prolyl-L-lysyl-[protein] + 3 S-adenosyl-
CC L-methionine = 3 H(+) + N-terminal N,N,N-trimethyl-L-alanyl-L-prolyl-
CC L-lysyl-[protein] + 3 S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:54712, Rhea:RHEA-COMP:13785, Rhea:RHEA-COMP:13971,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:138057, ChEBI:CHEBI:138315; EC=2.1.1.244;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=N-terminal L-seryl-L-prolyl-L-lysyl-[protein] + 3 S-adenosyl-
CC L-methionine = 3 H(+) + N-terminal N,N,N-trimethyl-L-seryl-L-prolyl-
CC L-lysyl-[protein] + 3 S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:54724, Rhea:RHEA-COMP:13789, Rhea:RHEA-COMP:13973,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:138061, ChEBI:CHEBI:138317; EC=2.1.1.244;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=N-terminal L-prolyl-L-prolyl-L-lysyl-[protein] + 2 S-adenosyl-
CC L-methionine = 2 H(+) + N-terminal N,N-dimethyl-L-prolyl-L-prolyl-L-
CC lysyl-[protein] + 2 S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:54736,
CC Rhea:RHEA-COMP:13787, Rhea:RHEA-COMP:13974, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:138059,
CC ChEBI:CHEBI:138318; EC=2.1.1.244;
CC -!- SIMILARITY: Belongs to the methyltransferase superfamily. NTM1 family.
CC {ECO:0000305}.
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DR EMBL; HE600906; CAP24725.1; -; Genomic_DNA.
DR RefSeq; XP_002639338.1; XM_002639292.1.
DR AlphaFoldDB; A8WVR2; -.
DR SMR; A8WVR2; -.
DR STRING; 6238.A8WVR2; -.
DR EnsemblMetazoa; CBG03917.1; CBG03917.1; WBGene00026679.
DR GeneID; 8581331; -.
DR KEGG; cbr:CBG_03917; -.
DR CTD; 8581331; -.
DR WormBase; CBG03917; CBP21366; WBGene00026679; Cbr-homt-1.
DR eggNOG; KOG3178; Eukaryota.
DR HOGENOM; CLU_055356_3_1_1; -.
DR InParanoid; A8WVR2; -.
DR OMA; IKQCKQT; -.
DR OrthoDB; 5471049at2759; -.
DR Proteomes; UP000008549; Chromosome I.
DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR GO; GO:0071885; F:N-terminal protein N-methyltransferase activity; IBA:GO_Central.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR InterPro; IPR008576; MeTrfase_NTM1.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR PANTHER; PTHR12753; AD-003 - RELATED; 1.
DR PANTHER; PTHR12753:SF0; ALPHA N-TERMINAL PROTEIN METHYLTRANSFERASE 1; 1.
DR Pfam; PF05891; Methyltransf_PK; 1.
DR PIRSF; PIRSF016958; DUF858_MeTrfase_lik; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
PE 3: Inferred from homology;
KW Methyltransferase; Reference proteome; S-adenosyl-L-methionine;
KW Transferase.
FT CHAIN 1..231
FT /note="Alpha N-terminal protein methyltransferase 1"
FT /id="PRO_0000399782"
FT BINDING 67
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
FT BINDING 72
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
FT BINDING 89..91
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
FT BINDING 116..117
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
FT BINDING 132
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
SQ SEQUENCE 231 AA; 26479 MW; C36E15445B11E681 CRC64;
MSSRLHNGND VYEKAEEYWS RASQDVNGML GGFETLHTPD ITVSKRFIEG LKKRNLFGSY
DYALDCGAGI GRVTKHLLMP LFKKVDMEDL VEELIVSSEQ YIGSDPRIGE KFIEGIQTFA
PPERRYDLIW IQWVSGHLVD EDLVAFFKRC VKGLKPGGCI VLKDNVTNHE KRLFDDEDHS
WTRTEPELME AFNGADLDMV VKTIQTGFPK EIYPVKIFAL KPRRQETSDD N
//
