ID I8UKU6_9BACI Unreviewed; 1086 AA.
AC I8UKU6;
DT 03-OCT-2012, integrated into UniProtKB/TrEMBL.
DT 03-OCT-2012, sequence version 1.
DT 27-MAR-2024, entry version 47.
DE RecName: Full=Fused isobutyryl-CoA mutase {ECO:0000256|HAMAP-Rule:MF_02050};
DE Includes:
DE RecName: Full=Isobutyryl-CoA mutase {ECO:0000256|HAMAP-Rule:MF_02050};
DE Short=ICM {ECO:0000256|HAMAP-Rule:MF_02050};
DE EC=5.4.99.13 {ECO:0000256|HAMAP-Rule:MF_02050};
DE Includes:
DE RecName: Full=P-loop GTPase {ECO:0000256|HAMAP-Rule:MF_02050};
DE EC=3.6.5.- {ECO:0000256|HAMAP-Rule:MF_02050};
DE AltName: Full=G-protein chaperone {ECO:0000256|HAMAP-Rule:MF_02050};
GN Name=icmF {ECO:0000256|HAMAP-Rule:MF_02050};
GN ORFNames=A374_00090 {ECO:0000313|EMBL:EIT87480.1};
OS Fictibacillus macauensis ZFHKF-1.
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Fictibacillus.
OX NCBI_TaxID=1196324 {ECO:0000313|EMBL:EIT87480.1, ECO:0000313|Proteomes:UP000004080};
RN [1] {ECO:0000313|EMBL:EIT87480.1, ECO:0000313|Proteomes:UP000004080}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ZFHKF-1 {ECO:0000313|EMBL:EIT87480.1,
RC ECO:0000313|Proteomes:UP000004080};
RX PubMed=22887677; DOI=10.1128/JB.01049-12;
RA Cai L., Zhang T.;
RT "Genome of Bacillus macauensis ZFHKF-1, a Long-Chain-Forming Bacterium.";
RL J. Bacteriol. 194:4780-4780(2012).
CC -!- FUNCTION: Catalyzes the reversible interconversion of isobutyryl-CoA
CC and n-butyryl-CoA, using radical chemistry. Also exhibits GTPase
CC activity, associated with its G-protein domain (MeaI) that functions as
CC a chaperone that assists cofactor delivery and proper holo-enzyme
CC assembly. {ECO:0000256|HAMAP-Rule:MF_02050}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-methylpropanoyl-CoA = butanoyl-CoA; Xref=Rhea:RHEA:13141,
CC ChEBI:CHEBI:57338, ChEBI:CHEBI:57371; EC=5.4.99.13;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02050};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + H2O = GDP + H(+) + phosphate; Xref=Rhea:RHEA:19669,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:58189; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_02050};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02050};
CC -!- COFACTOR:
CC Name=adenosylcob(III)alamin; Xref=ChEBI:CHEBI:18408;
CC Evidence={ECO:0000256|ARBA:ARBA00001922,
CC ECO:0000256|HAMAP-Rule:MF_02050};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_02050}.
CC -!- DOMAIN: Is composed of four functional domains: the N-terminal 5'-
CC deoxyadenosylcobalamin binding region that is homologous to the small
CC subunit of ICM (IcmB), a middle P-loop GTPase domain (MeaI) that likely
CC acts as a chaperone for ICM, a structured linker region involved in
CC dimer formation, and a C-terminal part that is homologous to the large
CC substrate-binding subunit of ICM (IcmA). {ECO:0000256|HAMAP-
CC Rule:MF_02050}.
CC -!- SIMILARITY: Belongs to the IcmF family. {ECO:0000256|HAMAP-
CC Rule:MF_02050}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_02050}.
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:EIT87480.1}.
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DR EMBL; AKKV01000002; EIT87480.1; -; Genomic_DNA.
DR RefSeq; WP_007200129.1; NZ_AKKV01000002.1.
DR AlphaFoldDB; I8UKU6; -.
DR STRING; 1196324.A374_00090; -.
DR PATRIC; fig|1196324.3.peg.17; -.
DR eggNOG; COG1703; Bacteria.
DR eggNOG; COG1884; Bacteria.
DR eggNOG; COG2185; Bacteria.
DR OrthoDB; 9762378at2; -.
DR Proteomes; UP000004080; Unassembled WGS sequence.
DR GO; GO:0031419; F:cobalamin binding; IEA:UniProtKB-UniRule.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0047727; F:isobutyryl-CoA mutase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004494; F:methylmalonyl-CoA mutase activity; IEA:InterPro.
DR GO; GO:0034784; F:pivalyl-CoA mutase activity; IEA:InterPro.
DR GO; GO:0006637; P:acyl-CoA metabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd02071; MM_CoA_mut_B12_BD; 1.
DR Gene3D; 3.40.50.280; Cobalamin-binding domain; 1.
DR Gene3D; 3.20.20.240; Methylmalonyl-CoA mutase; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR HAMAP; MF_02050; IcmF; 1.
DR InterPro; IPR016176; Cbl-dep_enz_cat.
DR InterPro; IPR006158; Cobalamin-bd.
DR InterPro; IPR036724; Cobalamin-bd_sf.
DR InterPro; IPR033669; IcmF.
DR InterPro; IPR006099; MeMalonylCoA_mutase_a/b_cat.
DR InterPro; IPR006098; MMCoA_mutase_a_cat.
DR InterPro; IPR027417; P-loop_NTPase.
DR NCBIfam; TIGR00641; acid_CoA_mut_N; 1.
DR PANTHER; PTHR43087:SF1; LAO_AO TRANSPORT SYSTEM ATPASE; 1.
DR PANTHER; PTHR43087; LYSINE/ARGININE/ORNITHINE TRANSPORT SYSTEM KINASE; 1.
DR Pfam; PF02310; B12-binding; 1.
DR Pfam; PF03308; MeaB; 1.
DR Pfam; PF01642; MM_CoA_mutase; 1.
DR SUPFAM; SSF52242; Cobalamin (vitamin B12)-binding domain; 1.
DR SUPFAM; SSF51703; Cobalamin (vitamin B12)-dependent enzymes; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS51332; B12_BINDING; 1.
PE 3: Inferred from homology;
KW Chaperone {ECO:0000256|HAMAP-Rule:MF_02050};
KW Cobalamin {ECO:0000256|ARBA:ARBA00022628, ECO:0000256|HAMAP-Rule:MF_02050};
KW Cobalt {ECO:0000256|ARBA:ARBA00023285, ECO:0000256|HAMAP-Rule:MF_02050};
KW GTP-binding {ECO:0000256|HAMAP-Rule:MF_02050};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_02050};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_02050};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_02050};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_02050};
KW Multifunctional enzyme {ECO:0000256|HAMAP-Rule:MF_02050};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_02050}; Reference proteome {ECO:0000313|Proteomes:UP000004080}.
FT DOMAIN 12..150
FT /note="B12-binding"
FT /evidence="ECO:0000259|PROSITE:PS51332"
FT BINDING 25
FT /ligand="adenosylcob(III)alamin"
FT /ligand_id="ChEBI:CHEBI:18408"
FT /ligand_part="Co"
FT /ligand_part_id="ChEBI:CHEBI:27638"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 211..216
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 215
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 239
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 240
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 253
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 253
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 256
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 301
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 301
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 302
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 348..351
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 579
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 614
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 720
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 764
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 813
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 848
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 853
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 965
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
FT BINDING 1085
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02050"
SQ SEQUENCE 1086 AA; 121597 MW; 72FB57D6BE619C48 CRC64;
MSTEEIYQPK HHIRFVTASS LFDGHDASIN IMRRILQSSG AEVIHLGHNR SVDEVVSAAI
QEDVQGIAMS SYQGGHVEYF KYMIDLLRER GAGHIKVFAG GGGVIIPPEI KELHEYGMAR
IFSPEDGRIN GLQGMINFMM QECDFQTVTS LTDELEKLPL KDAKAVARLI TVAENQEIIP
KEIAVTAEEV LDTVKASQQA VPVLGITGTG GAGKSSLTDE LVRRYLNEFE DKTIAIISID
PTKQKTGGAL LGDRIRMNAI YNPRVYMRSL ATRGSRSELS HSIQDALIVA KAAGYDLIIV
ETSGIGQGDA AIVDVSDVSL YVMTSEFGAP SQLEKIDMID YADLIAINKY ERKGSEDALR
DVRKQYQRSR QWFEKDLDGM PVYGTIASQF NDEGTNALFR ALVTTLNEKC NLQWPLKSLE
DEMIAKKNVI IPGERSQYLN DIVYTMRSYY KTMEEQVKYA RQSYQLKGSI ETIQELNAEG
EVVTTLEQAR ETVGEKMHPL TRKTLENWPK LKEMYSGEKL VTKIRDKEIV TELSTKSLAG
LTIPKVVLPK YEDWGEIIKW VMKENVPGSF PYTAGVFPFK RKGEDPKRQF AGEGTPERTN
RRFHYLSKDD DAKRLSTAFD SVTLYGEDPD MRPDIYGKVG ESGVSICTLE DMNKLYSGFD
LIAPSTSVSM TINGPAPILL AMFMNTAIGQ QVNVFAEKNG RQPNAAELQD IKAMTLANVR
GTVQADILKE DQGQNTCIFS TEFALRMMGD IQQYFIDHNV RNYYSVSISG YHIAEAGANP
ITQLAFTLAN GFTYVEYYLS RGMNIDDFAP NLSFFFSNGL DPEYAVIGRV ARRIWATVMK
NKYGANERSQ KLKYHVQTSG RSLHAQEIDF NDIRTTLQAL MALYDNCNSL HTNSYDEAIT
TPTEESVRRA MAIQLIITKE LGLARNENSL QGSFIIEELT DLVEEAVLQE FERLNTRGGV
LGSMETQYQR GKIQEESMFY EMKKHSGELP IIGVNTYMNP NPSSDEEFNM ELARATQEEK
QQQITHLEDF KSEHAAVAAS ALKKLQATAL NGGNIFEELM ETVKVASLGQ ITGALYEVGG
KYRRNM
//
