ID A0A1A9V7L8_GLOAU Unreviewed; 356 AA.
AC A0A1A9V7L8;
DT 05-OCT-2016, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2016, sequence version 1.
DT 27-MAR-2024, entry version 28.
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};
OS Glossina austeni (Savannah tsetse fly).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC Neoptera; Endopterygota; Diptera; Brachycera; Muscomorpha; Hippoboscoidea;
OC Glossinidae; Glossina.
OX NCBI_TaxID=7395 {ECO:0000313|EnsemblMetazoa:GAUT028478-PA, ECO:0000313|Proteomes:UP000078200};
RN [1] {ECO:0000313|Proteomes:UP000078200}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TTRI {ECO:0000313|Proteomes:UP000078200};
RA Aksoy S., Warren W., Wilson R.K.;
RL Submitted (MAY-2014) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EnsemblMetazoa:GAUT028478-PA}
RP IDENTIFICATION.
RC STRAIN=TTRI {ECO:0000313|EnsemblMetazoa:GAUT028478-PA};
RG EnsemblMetazoa;
RL Submitted (MAY-2020) to UniProtKB.
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}.
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DR AlphaFoldDB; A0A1A9V7L8; -.
DR STRING; 7395.A0A1A9V7L8; -.
DR EnsemblMetazoa; GAUT028478-RA; GAUT028478-PA; GAUT028478.
DR VEuPathDB; VectorBase:GAUT028478; -.
DR OrthoDB; 4853at2759; -.
DR UniPathway; UPA00904; UER00874.
DR Proteomes; UP000078200; 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};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, 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};
KW Nucleus {ECO:0000256|ARBA:ARBA00023242, ECO:0000256|HAMAP-Rule:MF_03119}.
FT ACT_SITE 246
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03119"
FT SITE 166
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03119"
SQ SEQUENCE 356 AA; 38699 MW; 401BDF8C83F7A4C7 CRC64;
MPLQSVKYAP GKLEILDQLL LPVQSKYLAV KGVEDGWKAI NKMQVRGAPA IAIVGCLSLA
VEIFPETYDS KKTLRQEIEG KLNYLVSARP TAVNMKIAAD ELIALANDLT KDDSINVDQM
KERFLAATEA MLQKDIDDNR AIGANGASII LKNLKREGPV RILTHCNTGS LATAGYGTAL
GVVRKLHELK KLEHVYCTET RPYNQGARLT AYELVHDQLP ATLVLDSMVA ALLRAKNIAA
VVVGADRVAA NGDTANKIGT YQIAVIARHH DVPFFVAAPL TSIDLQIPSG DHIIIEERPD
REMTHVGEHR IAAPGINCWN PAFDVTPASL ISGIITERGV FSPQKLKSEI TAFLEA
//
