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Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]

 A0A1Q8KRA4_9PSEU        Unreviewed;       449 AA.
A0A1Q8KRA4;
12-APR-2017, integrated into UniProtKB/TrEMBL.
12-APR-2017, sequence version 1.
16-JAN-2019, entry version 16.
RecName: Full=Riboflavin biosynthesis protein RibBA {ECO:0000256|HAMAP-Rule:MF_01283};
Includes:
RecName: Full=3,4-dihydroxy-2-butanone 4-phosphate synthase {ECO:0000256|HAMAP-Rule:MF_01283};
Short=DHBP synthase {ECO:0000256|HAMAP-Rule:MF_01283};
EC=4.1.99.12 {ECO:0000256|HAMAP-Rule:MF_01283};
Includes:
RecName: Full=GTP cyclohydrolase-2 {ECO:0000256|HAMAP-Rule:MF_01283};
EC=3.5.4.25 {ECO:0000256|HAMAP-Rule:MF_01283};
AltName: Full=GTP cyclohydrolase II {ECO:0000256|HAMAP-Rule:MF_01283};
Name=ribBA {ECO:0000256|HAMAP-Rule:MF_01283};
ORFNames=Ae707Ps1_3339c {ECO:0000313|EMBL:OLM19080.1};
Pseudonocardia sp. Ae707_Ps1.
Bacteria; Actinobacteria; Pseudonocardiales; Pseudonocardiaceae;
Pseudonocardia.
NCBI_TaxID=1885572 {ECO:0000313|EMBL:OLM19080.1, ECO:0000313|Proteomes:UP000186124};
[1] {ECO:0000313|EMBL:OLM19080.1, ECO:0000313|Proteomes:UP000186124}
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
STRAIN=Ae707_Ps1 {ECO:0000313|EMBL:OLM19080.1,
ECO:0000313|Proteomes:UP000186124};
Holmes N.A., Innocent T.M., Heine D., Al Bassam M., Worsley S.F.,
Trottmann F., Patrick E.H., Yu D.W., Murrell J.C., Schioett M.,
Wilkinson B., Boomsma J., Hutchings M.I.;
"Genome Analysis of Two Pseudonocardia Phylotypes Associated with
Acromyrmex Leafcutter Ants Reveals Their Biosynthetic Potential.";
Front. Microbiol. 7:1-16(2016).
-!- FUNCTION: Catalyzes the conversion of D-ribulose 5-phosphate to
formate and 3,4-dihydroxy-2-butanone 4-phosphate.
{ECO:0000256|HAMAP-Rule:MF_01283, ECO:0000256|SAAS:SAAS00739193}.
-!- FUNCTION: Catalyzes the conversion of GTP to 2,5-diamino-6-
ribosylamino-4(3H)-pyrimidinone 5'-phosphate (DARP), formate and
pyrophosphate. {ECO:0000256|HAMAP-Rule:MF_01283}.
-!- CATALYTIC ACTIVITY:
Reaction=D-ribulose 5-phosphate = (2S)-2-hydroxy-3-oxobutyl
phosphate + formate + H(+); Xref=Rhea:RHEA:18457,
ChEBI:CHEBI:15378, ChEBI:CHEBI:15740, ChEBI:CHEBI:58121,
ChEBI:CHEBI:58830; EC=4.1.99.12; Evidence={ECO:0000256|HAMAP-
Rule:MF_01283};
-!- CATALYTIC ACTIVITY:
Reaction=GTP + 3 H2O = 2,5-diamino-6-hydroxy-4-(5-
phosphoribosylamino)-pyrimidine + diphosphate + formate + 2
H(+); Xref=Rhea:RHEA:23704, ChEBI:CHEBI:15377,
ChEBI:CHEBI:15378, ChEBI:CHEBI:15740, ChEBI:CHEBI:33019,
ChEBI:CHEBI:37565, ChEBI:CHEBI:58614; EC=3.5.4.25;
Evidence={ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS01116086};
-!- COFACTOR:
Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
Evidence={ECO:0000256|HAMAP-Rule:MF_01283};
Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
Evidence={ECO:0000256|HAMAP-Rule:MF_01283};
Note=Binds 2 divalent metal cations per subunit. Magnesium or
manganese. {ECO:0000256|HAMAP-Rule:MF_01283};
-!- COFACTOR:
Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
Evidence={ECO:0000256|HAMAP-Rule:MF_01283};
Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-
Rule:MF_01283};
-!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; 2-
hydroxy-3-oxobutyl phosphate from D-ribulose 5-phosphate: step
1/1. {ECO:0000256|HAMAP-Rule:MF_01283}.
-!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; 5-amino-
6-(D-ribitylamino)uracil from GTP: step 1/4. {ECO:0000256|HAMAP-
Rule:MF_01283, ECO:0000256|SAAS:SAAS00711724}.
-!- SIMILARITY: In the C-terminal section; belongs to the GTP
cyclohydrolase II family. {ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS00789992}.
-!- SIMILARITY: In the N-terminal section; belongs to the DHBP
synthase family. {ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS00534513}.
-!- CAUTION: The sequence shown here is derived from an
EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is
preliminary data. {ECO:0000313|EMBL:OLM19080.1}.
-----------------------------------------------------------------------
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EMBL; MCIR01000001; OLM19080.1; -; Genomic_DNA.
UniPathway; UPA00275; UER00399.
UniPathway; UPA00275; UER00400.
Proteomes; UP000186124; Unassembled WGS sequence.
GO; GO:0008686; F:3,4-dihydroxy-2-butanone-4-phosphate synthase activity; IEA:UniProtKB-UniRule.
GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
GO; GO:0003935; F:GTP cyclohydrolase II activity; IEA:UniProtKB-UniRule.
GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
GO; GO:0009231; P:riboflavin biosynthetic process; IEA:UniProtKB-UniRule.
CDD; cd00641; GTP_cyclohydro2; 1.
Gene3D; 3.40.50.10990; -; 1.
HAMAP; MF_00179; RibA; 1.
HAMAP; MF_00180; RibB; 1.
HAMAP; MF_01283; RibBA; 1.
InterPro; IPR017945; DHBP_synth_RibB-like_a/b_dom.
InterPro; IPR000422; DHBP_synthase_RibB.
InterPro; IPR032677; GTP_cyclohydro_II.
InterPro; IPR000926; RibA.
InterPro; IPR036144; RibA-like_sf.
InterPro; IPR016299; Riboflavin_synth_RibBA.
Pfam; PF00926; DHBP_synthase; 1.
Pfam; PF00925; GTP_cyclohydro2; 1.
SUPFAM; SSF142695; SSF142695; 1.
SUPFAM; SSF55821; SSF55821; 1.
TIGRFAMs; TIGR00505; ribA; 1.
TIGRFAMs; TIGR00506; ribB; 1.
3: Inferred from homology;
Complete proteome {ECO:0000313|Proteomes:UP000186124};
GTP-binding {ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS00711691};
Hydrolase {ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS01033620, ECO:0000313|EMBL:OLM19080.1};
Lyase {ECO:0000256|HAMAP-Rule:MF_01283, ECO:0000313|EMBL:OLM19080.1};
Magnesium {ECO:0000256|HAMAP-Rule:MF_01283};
Manganese {ECO:0000256|HAMAP-Rule:MF_01283};
Metal-binding {ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS00037896};
Multifunctional enzyme {ECO:0000256|HAMAP-Rule:MF_01283};
Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS00711691};
Riboflavin biosynthesis {ECO:0000256|HAMAP-Rule:MF_01283,
ECO:0000256|SAAS:SAAS00037880};
Zinc {ECO:0000256|HAMAP-Rule:MF_01283, ECO:0000256|SAAS:SAAS00711685}.
DOMAIN 244 412 GTP_cyclohydro2.
{ECO:0000259|Pfam:PF00925}.
NP_BIND 292 296 GTP. {ECO:0000256|HAMAP-Rule:MF_01283}.
NP_BIND 336 338 GTP. {ECO:0000256|HAMAP-Rule:MF_01283}.
REGION 1 237 DHBP synthase. {ECO:0000256|HAMAP-
Rule:MF_01283}.
REGION 61 62 D-ribulose 5-phosphate binding.
{ECO:0000256|HAMAP-Rule:MF_01283}.
REGION 174 178 D-ribulose 5-phosphate binding.
{ECO:0000256|HAMAP-Rule:MF_01283}.
REGION 238 449 GTP cyclohydrolase II.
{ECO:0000256|HAMAP-Rule:MF_01283}.
ACT_SITE 370 370 Proton acceptor; for GTP cyclohydrolase
activity. {ECO:0000256|HAMAP-
Rule:MF_01283}.
ACT_SITE 372 372 Nucleophile; for GTP cyclohydrolase
activity. {ECO:0000256|HAMAP-
Rule:MF_01283}.
METAL 62 62 Magnesium or manganese 1.
{ECO:0000256|HAMAP-Rule:MF_01283}.
METAL 62 62 Magnesium or manganese 2.
{ECO:0000256|HAMAP-Rule:MF_01283}.
METAL 177 177 Magnesium or manganese 2.
{ECO:0000256|HAMAP-Rule:MF_01283}.
METAL 297 297 Zinc; catalytic. {ECO:0000256|HAMAP-
Rule:MF_01283}.
METAL 308 308 Zinc; catalytic. {ECO:0000256|HAMAP-
Rule:MF_01283}.
METAL 310 310 Zinc; catalytic. {ECO:0000256|HAMAP-
Rule:MF_01283}.
BINDING 66 66 D-ribulose 5-phosphate.
{ECO:0000256|HAMAP-Rule:MF_01283}.
BINDING 198 198 D-ribulose 5-phosphate.
{ECO:0000256|HAMAP-Rule:MF_01283}.
BINDING 313 313 GTP. {ECO:0000256|HAMAP-Rule:MF_01283}.
BINDING 358 358 GTP. {ECO:0000256|HAMAP-Rule:MF_01283}.
BINDING 393 393 GTP. {ECO:0000256|HAMAP-Rule:MF_01283}.
BINDING 398 398 GTP. {ECO:0000256|HAMAP-Rule:MF_01283}.
SITE 160 160 Essential for DHBP synthase activity.
{ECO:0000256|HAMAP-Rule:MF_01283}.
SITE 198 198 Essential for DHBP synthase activity.
{ECO:0000256|HAMAP-Rule:MF_01283}.
SEQUENCE 449 AA; 48158 MW; 8DB67CC80ABB9CF1 CRC64;
MSEPSTTPGS APEADASGKL PEHPHTVMGP SERAERFAQI EKAIADIAEG KPVVVMDDED
RENEGDLIFA AAKATPELLA FTVRYTSGYV CVAITEDTCE RLDLPPMHHT NRDSFRTAYT
VTVDAKEGVT TGISAQDRCR TIQLLADPAT ESADLVRPGH VLPLQAREGG VLRRPGHTEA
AVDLARMAGL PPAGALCEIV SEKNAGDMAR GEELGVFAAD HDLTLITIAD LIAYRRRFEK
HIERIATARI PTGHGDFLAY GYDSLLDGVE HIAMVMGPVG TPADDGEEVL VRVHSECLTG
DVLGSLRCDC GPQLDAALEA VANEGRGVVL YMRGHEGRGI GLLHKLQAYQ LQEAGADTVD
ANLAMGLPAD ARDYGIGAQI LADLGVRSMR LLTNNPDKRA GLEGYGLRVV GREAMPVRAT
PQNLRYLRTK RDRMGHDLPD LGGVADPGR


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Pathways :
WP2340: Thiamine (vitamin B1) biosynthesis and salvage
WP2341: vitamin B1 (thiamin) biosynthesis and salvage pathway
WP1708: Terpenoid backbone biosynthesis
WP2199: Seed Development
WP2208: Cardiolipin Biosynthesis
WP2210: Oryzalexin S biosynthesis
WP2211: Geranylgeranyldiphosphate biosynthesis II (plastidic)
WP2248: anthocyanin biosynthesis
WP626: Abscisic Acid Biosynthesis
WP677: Momilactone biosynthesis
WP1403: AMPK signaling
WP1422: Sphingolipid Metabolism
WP1423: Ganglio Sphingolipid Metabolism
WP1424: Globo Sphingolipid Metabolism
WP1461: Photosynthetic Carbon Reduction
WP1493: Carbon assimilation C4 pathway
WP1621: Arginine and proline metabolism
WP1657: Glycerolipid metabolism
WP1685: Peptidoglycan biosynthesis
WP2339: vitamin B2 (riboflavin) biosynthesis and conversion to FMN and FAD pathway
WP2344: vitamin B6 (pyridoxine, pyridoxal, pyridoxamine) biosynthesis and salvage pathway
WP2349: vitamin B3 (niacin), NAD and NADP biosynthesis pathway
WP2353: vitamin B9 (folate) biosynthesis pathway
WP296: TCA Cycle - biocyc
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Related Genes :
[RIBA1 RIBBA At5g64300 MSJ1.14] Bifunctional riboflavin biosynthesis protein RIBA 1, chloroplastic (AtRIBA1) [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribH DMD85_09030] Multifunctional fusion protein [Includes: Riboflavin biosynthesis protein RibBA; 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II); 6,7-dimethyl-8-ribityllumazine synthase (DMRL synthase) (LS) (Lumazine synthase) (EC 2.5.1.78)]
[ribBA ribA ribA2 Rv1415 MTCY21B4.33] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribH GA0115236_158411] Multifunctional fusion protein [Includes: Riboflavin biosynthesis protein RibBA; 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II); 6,7-dimethyl-8-ribityllumazine synthase (DMRL synthase) (LS) (Lumazine synthase) (EC 2.5.1.78)]
[ribBA ribA/ribB CT_731] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA RER_30220] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA sll1894] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA aq_350] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA BcerKBAB4_3943] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA MW1709] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA BSU23260] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA APL_0384] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA ribA2 MT1458] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA BCB4264_A4222] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA BCG_1476] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA MUL_1809] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA Paes_0583] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA APJL_0404] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA BT_2416] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA/ribB CPn_0872 CP_0997 CpB0901] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA TM_1826] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA SAV1769] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA BCG9842_B1015] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA/B TC_0104] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA SH1155] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA CHU_0931] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA PGN_0643] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA BC_4111] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]
[ribBA ribA2 BQ2027_MB1450] Riboflavin biosynthesis protein RibBA [Includes: 3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP synthase) (EC 4.1.99.12); GTP cyclohydrolase-2 (EC 3.5.4.25) (GTP cyclohydrolase II)]

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