ID D9Q2Q7_ACIS3 Unreviewed; 314 AA.
AC D9Q2Q7;
DT 05-OCT-2010, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2010, sequence version 1.
DT 27-MAR-2024, entry version 62.
DE RecName: Full=2-methylisocitrate lyase {ECO:0000256|HAMAP-Rule:MF_01939};
DE Short=2-MIC {ECO:0000256|HAMAP-Rule:MF_01939};
DE Short=MICL {ECO:0000256|HAMAP-Rule:MF_01939};
DE EC=4.1.3.30 {ECO:0000256|HAMAP-Rule:MF_01939};
DE AltName: Full=(2R,3S)-2-methylisocitrate lyase {ECO:0000256|HAMAP-Rule:MF_01939};
GN Name=prpB {ECO:0000256|HAMAP-Rule:MF_01939};
GN OrderedLocusNames=ASAC_1190 {ECO:0000313|EMBL:ADL19595.1};
OS Acidilobus saccharovorans (strain DSM 16705 / JCM 18335 / VKM B-2471 /
OS 345-15).
OC Archaea; Thermoproteota; Thermoprotei; Acidilobales; Acidilobaceae;
OC Acidilobus.
OX NCBI_TaxID=666510 {ECO:0000313|EMBL:ADL19595.1, ECO:0000313|Proteomes:UP000000346};
RN [1] {ECO:0000313|EMBL:ADL19595.1, ECO:0000313|Proteomes:UP000000346}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16705 / JCM 18335 / VKM B-2471 / 345-15
RC {ECO:0000313|Proteomes:UP000000346};
RX PubMed=20581186; DOI=10.1128/AEM.00599-10;
RA Mardanov A.V., Svetlitchnyi V.A., Beletsky A.V., Prokofeva M.I.,
RA Bonch-Osmolovskaya E.A., Ravin N.V., Skryabin K.G.;
RT "The genome sequence of the crenarchaeon Acidilobus saccharovorans supports
RT a new order, Acidilobales, and suggests an important ecological role in
RT terrestrial acidic hot springs.";
RL Appl. Environ. Microbiol. 76:5652-5657(2010).
CC -!- FUNCTION: Catalyzes the thermodynamically favored C-C bond cleavage of
CC (2R,3S)-2-methylisocitrate to yield pyruvate and succinate.
CC {ECO:0000256|RuleBase:RU361121}.
CC -!- FUNCTION: Involved in the catabolism of short chain fatty acids (SCFA)
CC via the 2-methylcitrate cycle (propionate degradation route). Catalyzes
CC the thermodynamically favored C-C bond cleavage of (2R,3S)-2-
CC methylisocitrate to yield pyruvate and succinate via an alpha-carboxy-
CC carbanion intermediate. {ECO:0000256|HAMAP-Rule:MF_01939}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate = pyruvate +
CC succinate; Xref=Rhea:RHEA:16809, ChEBI:CHEBI:15361,
CC ChEBI:CHEBI:30031, ChEBI:CHEBI:57429; EC=4.1.3.30;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01939,
CC ECO:0000256|RuleBase:RU361121};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946,
CC ECO:0000256|HAMAP-Rule:MF_01939};
CC -!- PATHWAY: Organic acid metabolism; propanoate degradation.
CC {ECO:0000256|HAMAP-Rule:MF_01939, ECO:0000256|RuleBase:RU361121}.
CC -!- SUBUNIT: Homotetramer; dimer of dimers. {ECO:0000256|HAMAP-
CC Rule:MF_01939}.
CC -!- SIMILARITY: Belongs to the isocitrate lyase/PEP mutase superfamily.
CC Methylisocitrate lyase family. {ECO:0000256|ARBA:ARBA00009282,
CC ECO:0000256|HAMAP-Rule:MF_01939, ECO:0000256|RuleBase:RU361121}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP001742; ADL19595.1; -; Genomic_DNA.
DR AlphaFoldDB; D9Q2Q7; -.
DR STRING; 666510.ASAC_1190; -.
DR KEGG; asc:ASAC_1190; -.
DR eggNOG; arCOG00581; Archaea.
DR HOGENOM; CLU_027389_3_2_2; -.
DR InParanoid; D9Q2Q7; -.
DR OrthoDB; 9667at2157; -.
DR UniPathway; UPA00946; -.
DR Proteomes; UP000000346; Chromosome.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046421; F:methylisocitrate lyase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019629; P:propionate catabolic process, 2-methylcitrate cycle; IEA:UniProtKB-UniRule.
DR CDD; cd00377; ICL_PEPM; 1.
DR Gene3D; 3.20.20.60; Phosphoenolpyruvate-binding domains; 1.
DR HAMAP; MF_01939; PrpB; 1.
DR InterPro; IPR039556; ICL/PEPM.
DR InterPro; IPR018523; Isocitrate_lyase_ph_CS.
DR InterPro; IPR012695; PrpB.
DR InterPro; IPR015813; Pyrv/PenolPyrv_Kinase-like_dom.
DR InterPro; IPR040442; Pyrv_Kinase-like_dom_sf.
DR NCBIfam; TIGR02317; prpB; 1.
DR PANTHER; PTHR42905:SF5; CARBOXYVINYL-CARBOXYPHOSPHONATE PHOSPHORYLMUTASE, CHLOROPLASTIC; 1.
DR PANTHER; PTHR42905; PHOSPHOENOLPYRUVATE CARBOXYLASE; 1.
DR Pfam; PF13714; PEP_mutase; 1.
DR SUPFAM; SSF51621; Phosphoenolpyruvate/pyruvate domain; 1.
DR PROSITE; PS00161; ISOCITRATE_LYASE; 1.
PE 3: Inferred from homology;
KW Lyase {ECO:0000256|HAMAP-Rule:MF_01939, ECO:0000256|RuleBase:RU361121};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01939};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01939};
KW Reference proteome {ECO:0000313|Proteomes:UP000000346}.
FT BINDING 52..54
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 91
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 93
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 128..129
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 162
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 192
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 214..216
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 245
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
FT BINDING 274
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01939"
SQ SEQUENCE 314 AA; 35092 MW; 060ED6CA0714573A CRC64;
MAYLYRRKGD VHPAVRLREL MKGSGIIIVP GVFDPASALL AESVGFKAIY LSGAALTGSL
AMPDLSIITF SEVLDATRRI MEVVDLPMIV DTDTGFGEAI NVYRTVKELE EAGAAAVQIE
DQVLPKKCGH LSGKHVVPAD EMVKKIMSAV EARRNDMVIV ARTDAREVEG LDAAIERAQM
YVEAGADVIF PEALHNLEEF KEFSRKVKAP LLANMTEFGK TPYITAKEFE EAGYKFVIFP
VTTFRAAMKA MKDVLLELKE KGTQKYILDK LMTRQEFYEL IGYYEYEKRD SQIAEKAEAL
MSELKRRTQG STQK
//
