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NiceZyme View of ENZYME: EC 4.1.99.12

Official Name
3,4-dihydroxy-2-butanone-4-phosphate synthase.
Alternative Name(s)
DHBP synthase.
L-3,4-dihydroxybutan-2-one-4-phosphate synthase.
Reaction catalysed
D-ribulose 5-phosphate <=> formate + L-3,4-dihydroxybutan-2-one 4-phosphate
Cofactor(s)
Magnesium.
Comment(s)
  • The reaction involves an intramolecular skeletal rearrangement, with the bonds in D-ribulose 5-phosphate that connect C-3 and C-5 to C-4 being broken, C-4 being removed as formate and reconnection of C-3 and C-5.
  • The phosphorylated four-carbon product (L-3,4-dihydroxybutan-2-one 4-phosphate) is an intermediate in the biosynthesis of riboflavin.
Cross-references
BRENDA4.1.99.12
PUMA24.1.99.12
PRIAM enzyme-specific profiles4.1.99.12
KEGG Ligand Database for Enzyme Nomenclature4.1.99.12
IUBMB Enzyme Nomenclature4.1.99.12
IntEnz4.1.99.12
MEDLINEFind literature relating to 4.1.99.12
MetaCyc4.1.99.12
UniProtKB/Swiss-Prot
Q5A3V6, RIB3_CANAL;  Q8TG90, RIB3_MAGGR;  O60181, RIB3_SCHPO;  
Q99258, RIB3_YEAST;  A3MZA2, RIBBA_ACTP2;  P50855, RIBBA_ACTPL;  
O66679, RIBBA_AQUAE;  P47924, RIBBA_ARATH;  A7Z675, RIBBA_BACA2;  
A0RIB3, RIBBA_BACAH;  P51695, RIBBA_BACAM;  Q81MB6, RIBBA_BACAN;  
Q731I5, RIBBA_BACC1;  A7GSD5, RIBBA_BACCN;  Q818X6, RIBBA_BACCR;  
Q635H0, RIBBA_BACCZ;  Q6HE54, RIBBA_BACHK;  Q5WH08, RIBBA_BACSK;  
P17620, RIBBA_BACSU;  Q9PLJ5, RIBBA_CHLMU;  Q9Z734, RIBBA_CHLPN;  
O84736, RIBBA_CHLTR;  A0Q3H7, RIBBA_CLONN;  O24752, RIBBA_CORAM;  
A4QEG9, RIBBA_CORGB;  Q8NQ52, RIBBA_CORGL;  A0QI09, RIBBA_MYCA1;  
P0A5V1, RIBBA_MYCBO;  A1KIK4, RIBBA_MYCBP;  A4TC13, RIBBA_MYCGI;  
Q741F1, RIBBA_MYCPA;  A5U2B7, RIBBA_MYCTA;  P0A5V0, RIBBA_MYCTU;  
A0PPL6, RIBBA_MYCUA;  A1T8K1, RIBBA_MYCVP;  Q5YTP3, RIBBA_NOCFA;  
Q0S0K2, RIBBA_RHOSR;  A8LY38, RIBBA_SALAI;  A4X639, RIBBA_SALTO;  
Q5HF07, RIBBA_STAAC;  Q99TA0, RIBBA_STAAM;  Q7A511, RIBBA_STAAN;  
Q6GFT5, RIBBA_STAAR;  Q6G8G1, RIBBA_STAAS;  Q8NW14, RIBBA_STAAW;  
Q5HNE3, RIBBA_STAEQ;  Q8CNU2, RIBBA_STAES;  Q4L7B1, RIBBA_STAHJ;  
Q49YJ7, RIBBA_STAS1;  Q0AXM5, RIBBA_SYNWW;  P74104, RIBBA_SYNY3;  
Q9X2E6, RIBBA_THEMA;  A0KHV1, RIBB_AERHH;  A4SKH7, RIBB_AERS4;  
Q8UE66, RIBB_AGRT5;  O28173, RIBB_ARCFU;  Q1LSL6, RIBB_BAUCH;  
Q7VQQ4, RIBB_BLOFL;  Q7WDL7, RIBB_BORBR;  Q7W2M1, RIBB_BORPA;  
Q7VSF4, RIBB_BORPE;  P57167, RIBB_BUCAI;  Q8KA55, RIBB_BUCAP;  
P59556, RIBB_BUCBP;  Q9PHU4, RIBB_CAMJE;  Q7NQC4, RIBB_CHRVO;  
A8APS7, RIBB_CITK8;  A7FXH7, RIBB_CLOB1;  A5I603, RIBB_CLOBH;  
A7GHE0, RIBB_CLOBL;  O68249, RIBB_DEHMU;  Q313P5, RIBB_DESDG;  
Q6AQE3, RIBB_DESPS;  A4J2L3, RIBB_DESRM;  Q72B63, RIBB_DESVH;  
A1VD83, RIBB_DESVV;  A7ZRS4, RIBB_ECO24;  P0A7J1, RIBB_ECO57;  
A8A4J8, RIBB_ECOHS;  A1AFX0, RIBB_ECOK1;  Q0TD60, RIBB_ECOL5;  
Q8FDH9, RIBB_ECOL6;  B1ISB5, RIBB_ECOLC;  P0A7J0, RIBB_ECOLI;  
Q1R6T4, RIBB_ECOUT;  A4WEI2, RIBB_ENT38;  A7MP95, RIBB_ENTS8;  
Q6D8S3, RIBB_ERWCT;  Q4QMD5, RIBB_HAEI8;  A5UDW2, RIBB_HAEIE;  
A5UHR8, RIBB_HAEIG;  P44866, RIBB_HAEIN;  Q0I132, RIBB_HAES1;  
B0UX44, RIBB_HAES2;  Q7VJN5, RIBB_HELHP;  Q9ZL40, RIBB_HELPJ;  
O25484, RIBB_HELPY;  A6TE29, RIBB_KLEP7;  Q65W81, RIBB_MANSM;  
Q8TT89, RIBB_METAC;  Q60364, RIBB_METJA;  A2SQG6, RIBB_METLZ;  
Q8PW86, RIBB_METMA;  O27543, RIBB_METTH;  Q9JU97, RIBB_NEIMA;  
Q9JZ77, RIBB_NEIMB;  Q8CWF6, RIBB_OCEIH;  P57940, RIBB_PASMU;  
Q3A668, RIBB_PELCD;  A1AKS6, RIBB_PELPD;  Q02008, RIBB_PHOLE;  
Q7N0C8, RIBB_PHOLL;  P51962, RIBB_PHOPO;  Q6LIW0, RIBB_PHOPR;  
Q9HWX4, RIBB_PSEAE;  Q3IKS6, RIBB_PSEHT;  Q88QG4, RIBB_PSEPK;  
Q882G0, RIBB_PSESM;  Q46TZ9, RIBB_RALEJ;  Q8XQN1, RIBB_RALSO;  
Q2RS98, RIBB_RHORT;  A9MPW6, RIBB_SALAR;  Q57JR5, RIBB_SALCH;  
Q5PMU5, RIBB_SALPA;  A9N5X2, RIBB_SALPB;  P66033, RIBB_SALTI;  
P66032, RIBB_SALTY;  A8GJU0, RIBB_SERP5;  A3DAC1, RIBB_SHEB5;  
A6WHL6, RIBB_SHEB8;  A9KVB7, RIBB_SHEB9;  Q07WC1, RIBB_SHEFN;  
B0TMY9, RIBB_SHEHH;  A3Q8W5, RIBB_SHELP;  Q8EKF2, RIBB_SHEON;  
A8GYS3, RIBB_SHEPA;  A4Y1N7, RIBB_SHEPC;  A0KRF9, RIBB_SHESA;  
A8G1K1, RIBB_SHESH;  Q0HP01, RIBB_SHESM;  Q0I0H0, RIBB_SHESR;  
A1RPZ7, RIBB_SHESW;  Q31WZ1, RIBB_SHIBS;  Q32BS1, RIBB_SHIDS;  
Q0T0L7, RIBB_SHIF8;  P0A7J2, RIBB_SHIFL;  Q3YXK0, RIBB_SHISS;  
Q2NWD7, RIBB_SODGM;  A5F159, RIBB_VIBC3;  Q9KKP2, RIBB_VIBCH;  
Q9L6K8, RIBB_VIBFI;  P16448, RIBB_VIBHA;  Q87GR5, RIBB_VIBPA;  
Q8D485, RIBB_VIBVU;  Q7MFR0, RIBB_VIBVY;  Q8D2W5, RIBB_WIGBR;  
Q7M936, RIBB_WOLSU;  A1JQV2, RIBB_YERE8;  A7FE82, RIBB_YERP3;  
Q1C377, RIBB_YERPA;  Q8ZI56, RIBB_YERPE;  Q1CMD1, RIBB_YERPN;  
A4THU2, RIBB_YERPP;  Q665V6, RIBB_YERPS;  

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