ID A0A420J9U8_9PEZI Unreviewed; 401 AA.
AC A0A420J9U8;
DT 08-MAY-2019, integrated into UniProtKB/TrEMBL.
DT 08-MAY-2019, sequence version 1.
DT 13-SEP-2023, entry version 15.
DE RecName: Full=Methylthioribose-1-phosphate isomerase {ECO:0000256|HAMAP-Rule:MF_03119};
DE Short=M1Pi {ECO:0000256|HAMAP-Rule:MF_03119};
DE Short=MTR-1-P isomerase {ECO:0000256|HAMAP-Rule:MF_03119};
DE EC=5.3.1.23 {ECO:0000256|HAMAP-Rule:MF_03119};
DE AltName: Full=S-methyl-5-thioribose-1-phosphate isomerase {ECO:0000256|HAMAP-Rule:MF_03119};
DE AltName: Full=Translation initiation factor eIF-2B subunit alpha/beta/delta-like protein {ECO:0000256|HAMAP-Rule:MF_03119};
GN Name=MRI1 {ECO:0000256|HAMAP-Rule:MF_03119};
GN ORFNames=GcM3_012020 {ECO:0000313|EMBL:RKF83512.1};
OS Golovinomyces cichoracearum.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Leotiomycetes;
OC Erysiphales; Erysiphaceae; Golovinomyces.
OX NCBI_TaxID=62708 {ECO:0000313|EMBL:RKF83512.1, ECO:0000313|Proteomes:UP000283383};
RN [1] {ECO:0000313|EMBL:RKF83512.1, ECO:0000313|Proteomes:UP000283383}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UMSG3 {ECO:0000313|EMBL:RKF83512.1};
RX PubMed=30253736; DOI=10.1186/s12864-018-5069-z;
RA Wu Y., Ma X., Pan Z., Kale S.D., Song Y., King H., Zhang Q., Presley C.,
RA Deng X., Wei C.I., Xiao S.;
RT "Comparative genome analyses reveal sequence features reflecting distinct
RT modes of host-adaptation between dicot and monocot powdery mildew.";
RL BMC Genomics 19:705-705(2018).
CC -!- FUNCTION: Catalyzes the interconversion of methylthioribose-1-phosphate
CC (MTR-1-P) into methylthioribulose-1-phosphate (MTRu-1-P).
CC {ECO:0000256|HAMAP-Rule:MF_03119}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=S-methyl-5-thio-alpha-D-ribose 1-phosphate = S-methyl-5-thio-
CC D-ribulose 1-phosphate; Xref=Rhea:RHEA:19989, ChEBI:CHEBI:58533,
CC ChEBI:CHEBI:58548; EC=5.3.1.23; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_03119};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via salvage
CC pathway; L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate:
CC step 1/6. {ECO:0000256|HAMAP-Rule:MF_03119}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03119}.
CC Nucleus {ECO:0000256|HAMAP-Rule:MF_03119}.
CC -!- SIMILARITY: Belongs to the eIF-2B alpha/beta/delta subunits family.
CC MtnA subfamily. {ECO:0000256|HAMAP-Rule:MF_03119}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:RKF83512.1}.
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DR EMBL; MCBQ01001260; RKF83512.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A420J9U8; -.
DR STRING; 62708.A0A420J9U8; -.
DR UniPathway; UPA00904; UER00874.
DR Proteomes; UP000283383; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0046523; F:S-methyl-5-thioribose-1-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IEA:UniProtKB-UniPathway.
DR GO; GO:0019284; P:L-methionine salvage from S-adenosylmethionine; IEA:UniProtKB-UniRule.
DR Gene3D; 1.20.120.420; translation initiation factor eif-2b, domain 1; 1.
DR HAMAP; MF_01678; Salvage_MtnA; 1.
DR InterPro; IPR000649; IF-2B-related.
DR InterPro; IPR005251; IF-M1Pi.
DR InterPro; IPR042529; IF_2B-like_C.
DR InterPro; IPR011559; Initiation_fac_2B_a/b/d.
DR InterPro; IPR027363; M1Pi_N.
DR InterPro; IPR037171; NagB/RpiA_transferase-like.
DR NCBIfam; TIGR00524; eIF-2B_rel; 1.
DR NCBIfam; TIGR00512; salvage_mtnA; 1.
DR PANTHER; PTHR43475; METHYLTHIORIBOSE-1-PHOSPHATE ISOMERASE; 1.
DR PANTHER; PTHR43475:SF1; METHYLTHIORIBOSE-1-PHOSPHATE ISOMERASE; 1.
DR Pfam; PF01008; IF-2B; 1.
DR SUPFAM; SSF100950; NagB/RpiA/CoA transferase-like; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_03119}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03119};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_03119};
KW Methionine biosynthesis {ECO:0000256|ARBA:ARBA00023167, ECO:0000256|HAMAP-
KW Rule:MF_03119}; Nucleus {ECO:0000256|HAMAP-Rule:MF_03119};
KW Reference proteome {ECO:0000313|Proteomes:UP000283383}.
FT ACT_SITE 260
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03119"
FT SITE 176
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03119"
SQ SEQUENCE 401 AA; 44022 MW; 70EBD87A7AC8EBE5 CRC64;
MDSLRAIKYT RGTLDVLDQL RLPHELNYIN IKTCEEAFDC IVSMRVRGAP AIAIVAVLSL
AVELELRRND TTSPTALLSY INSRLDYLIG SRPTAVDLAN AIRILKQSAL SAATQKDSSD
ACHQIRAACI QTAEKMLEDD LATNLAIGKY GAEYVQRQLS PTSDNNYPKP SVLTHCNTGS
LATSGHGTAL GIIRSLYTMD YLRHVYFTET RPYNQGSRLT AYELLHESIP STLITDSMAG
ALFAQKKDQE KITAVIVGAD RVARNGDTAN KIGTYSLAIL ARHHGIKFVV AAPTTSIDLR
TETGADIQIE NRDPTEMTQI SGAVIDKIGR VESTHTVRVA IADQRVEVWN PAFDVTPAAL
IDAIITERGE VLRNSNNVFD FSDIIPERRQ CESNCLGDKI E
//
