ID   NTF6_TOBAC              Reviewed;         371 AA.
AC   Q40531;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 104.
DE   RecName: Full=Mitogen-activated protein kinase homolog NTF6;
DE            EC=2.7.11.24;
DE   AltName: Full=P43;
GN   Name=NTF6;
OS   Nicotiana tabacum (Common tobacco).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC   Nicotiana.
OX   NCBI_TaxID=4097;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=cv. Petit Havana SR1;
RX   PubMed=7588752; DOI=10.1111/j.1432-1033.1995.249_1.x;
RA   Wilson C., Anglmayer R., Vicente O., Heberle-Bors E.;
RT   "Molecular cloning, functional expression in Escherichia coli, and
RT   characterization of multiple mitogen-activated-protein kinases from
RT   tobacco.";
RL   Eur. J. Biochem. 233:249-257(1995).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-
CC         [protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-
CC         COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.24;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-
CC         threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060,
CC         Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216;
CC         EC=2.7.11.24;
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC   -!- ACTIVITY REGULATION: Activated by tyrosine and threonine
CC       phosphorylation. {ECO:0000250}.
CC   -!- DOMAIN: The TXY motif contains the threonine and tyrosine residues
CC       whose phosphorylation activates the MAP kinases.
CC   -!- PTM: Dually phosphorylated on Thr-196 and Tyr-198, which activates the
CC       enzyme (By similarity). Very low autophosphorylation, although
CC       dramatically increased when Mn(2+) is added to the reaction instead of
CC       Mg(2+). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the protein kinase superfamily. CMGC Ser/Thr
CC       protein kinase family. MAP kinase subfamily. {ECO:0000305}.
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DR   EMBL; X83879; CAA58760.1; -; mRNA.
DR   PIR; S68189; S51320.
DR   AlphaFoldDB; Q40531; -.
DR   SMR; Q40531; -.
DR   STRING; 4097.Q40531; -.
DR   BRENDA; 2.7.11.24; 3645.
DR   Proteomes; UP000084051; Unplaced.
DR   GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR   GO; GO:0005634; C:nucleus; IBA:GO_Central.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0004707; F:MAP kinase activity; IBA:GO_Central.
DR   GO; GO:0106310; F:protein serine kinase activity; IEA:RHEA.
DR   GO; GO:0004674; F:protein serine/threonine kinase activity; IBA:GO_Central.
DR   GO; GO:0035556; P:intracellular signal transduction; IBA:GO_Central.
DR   GO; GO:0006468; P:protein phosphorylation; IEA:InterPro.
DR   InterPro; IPR011009; Kinase-like_dom_sf.
DR   InterPro; IPR003527; MAP_kinase_CS.
DR   InterPro; IPR000719; Prot_kinase_dom.
DR   InterPro; IPR017441; Protein_kinase_ATP_BS.
DR   InterPro; IPR008271; Ser/Thr_kinase_AS.
DR   Pfam; PF00069; Pkinase; 1.
DR   SMART; SM00220; S_TKc; 1.
DR   SUPFAM; SSF56112; SSF56112; 1.
DR   PROSITE; PS01351; MAPK; 1.
DR   PROSITE; PS00107; PROTEIN_KINASE_ATP; 1.
DR   PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR   PROSITE; PS00108; PROTEIN_KINASE_ST; 1.
PE   2: Evidence at transcript level;
KW   ATP-binding; Kinase; Nucleotide-binding; Phosphoprotein;
KW   Reference proteome; Serine/threonine-protein kinase; Transferase.
FT   CHAIN           1..371
FT                   /note="Mitogen-activated protein kinase homolog NTF6"
FT                   /id="PRO_0000186323"
FT   DOMAIN          38..324
FT                   /note="Protein kinase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT   MOTIF           196..198
FT                   /note="TXY"
FT   ACT_SITE        164
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159,
FT                   ECO:0000255|PROSITE-ProRule:PRU10027"
FT   BINDING         44..52
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT   BINDING         67
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT   MOD_RES         196
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         198
FT                   /note="Phosphotyrosine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   371 AA;  42742 MW;  4D97C41AC203C272 CRC64;
     MENETNEKLE IKGIPTHEGK YVEYNVLGNF FEVTSKYIPP IQPVGRGAYG MVCCATNSET
     KEEVAIKKIG NAFENRIDAK RTLREIKLLS HMDHENIIKI KDIVRPPDRE EFNDVYIVYE
     LMDTDLHQII RSSQALTDDH CQYFLYQLLR GLKYVHSANV LHRDLKPSNL LLNANCDLKI
     CDFGLARTTS EADFMTEYVV TRWYRAPELL LNCTEYTAAI DIWSVGCILM ELIKREPLFP
     GRDYAQQLGL IIALLGSPED SDLGFLRSDN ARKYVKHLPR VPRHPFSQKF PDVSPLALDL
     AERMLVFDPA KRITVEDALN HPFLISLHEI NEEPVCDSPF NFDFEQASLS EDDIKELIWN
     EALKFDPNTM K