| Entry |
|
| Name |
3-hexulose-6-phosphate synthase;
D-arabino-3-hexulose 6-phosphate formaldehyde-lyase;
3-hexulosephosphate synthase;
3-hexulose phosphate synthase;
HPS
|
| Class |
Lyases;
Carbon-carbon lyases;
Aldehyde-lyases
 |
| Sysname |
D-arabino-hex-3-ulose-6-phosphate formaldehyde-lyase (D-ribulose-5-phosphate-forming)
|
| Reaction(IUBMB) |
D-arabino-hex-3-ulose 6-phosphate = D-ribulose 5-phosphate + formaldehyde [RN: R05338]
|
| Reaction(KEGG) |
|
| Substrate |
D-arabino-hex-3-ulose 6-phosphate [CPD: C06019]
|
| Product |
D-ribulose 5-phosphate [CPD: C00199];
formaldehyde [CPD: C00067]
|
| Comment |
Requires Mg2+ or Mn2+ for maximal activity [1]. The enzyme is specific for D-ribulose 5-phosphate as substrate as ribose 5-phosphate, xylulose 5-phosphate, allulose 6-phosphate and fructose 6-phosphate cannot act as substrate. In addition to formaldehyde, the enzyme can also use glycolaldehyde and methylglyoxal [7]. This enzyme, along with EC 5.3.1.27, 6-phospho-3-hexuloisomerase, plays a key role in the ribulose-monophosphate cycle of formaldehyde fixation, which is present in many microorganisms that are capable of utilizing C1-compounds [1]. The hyperthermophilic and anaerobic archaeon Pyrococcus horikoshii OT3 constitutively produces a bifunctional enzyme that sequentially catalyses the reactions of this enzyme and EC 5.3.1.27, 6-phospho-3-hexuloisomerase [6]. This enzyme is a member of the orotidine 5'-monophosphate decarboxylase (OMPDC) suprafamily [5].
|
| History |
EC 4.1.2.43 created 2008
|
| Pathway |
| Pentose phosphate pathway | | Methane metabolism | | Metabolic pathways | | Microbial metabolism in diverse environments |
|
| Orthology |
| 3-hexulose-6-phosphate synthase | | bifunctional enzyme Fae/Hps | | 3-hexulose-6-phosphate synthase / 6-phospho-3-hexuloisomerase |
|
| Genes |
EUM: | | STM: | | SEO: | | SEV: | | SEY: | | SEM: | | SEJ: | | SEB: | | SEF: | | SETU: | | SETC: | | SENR: | | SEND: | | SENI: | | SEH: | | SHB: | | SENH: | | SEEH: | | ECLZ: | | KPN: | | KPY: | | KMI: | | KOC: | | PGE: | | SOD: | | MCA: | | MMT: | | MDN: | | MDH: | | MAH: | | MEJ: | | MEC: | | MFA: | | MMB: | | MEH: | | MEI: | | MEP: | | MBAC: | | MBAT: | | MEU: | | NSA: | | SLH: | | DAO: | | GAL: | | KBA: | | BSU: | | BSR: | | BSL: | | BSH: | | BSY: | | BSUT: | | BSUL: | | BSUS: | | BSS: | | BST: | | BSO: | | BSN: | | BSQ: | | BSX: | | BSP: | | BLI: | | BLD: | | BLH: | | BAY: | | BAQ: | | BYA: | | BAMP: | | BAML: | | BAMA: | | BAMN: | | BAMB: | | BAMT: | | BAMY: | | BMP: | | BAO: | | BAZ: | | BQL: | | BXH: | | BQY: | | BAMI: | | BAMC: | | BAMF: | | BAE: | | BATR: | | BCL: | | BPU: | | BPUM: | | BPUS: | | BMQ: | | BMD: | | BMH: | | BMEG: | | BAG: | | BJS: | | BIF: | | BMET: | | GST: | | BACW: | | BACP: | | BACB: | | BACY: | | BACL: | | BALM: | | BEO: | | BSM: | | BON: | | BGY: | | BFX: | | BGI: | | BXI: | | BHK: | | OIH: | | GTK: | | GTN: | | GMC: | | GGH: | | GJF: | | GEA: | | GEL: | | GSR: | | GEJ: | | GTH: | | PTL: | | ANM: | | ANL: | | HMN: | | VIG: | | FAR: | | SJE: | | SAU: | | SAV: | | SAW: | | SAH: | | SAJ: | | SAM: | | SAS: | | SAR: | | SAC: | | SAX: | | SAA: | | SAO: | | SAE: | | SAD: | | SUU: | | SUV: | | SUE: | | SUJ: | | SUK: | | SUC: | | SUT: | | SUQ: | | SUZ: | | SUD: | | SUX: | | SUW: | | SUG: | | SUF: | | SAUA: | | SAUE: | | SAUN: | | SAUS: | | SAUU: | | SAUG: | | SAUZ: | | SAUT: | | SAUJ: | | SAUK: | | SAUQ: | | SAUV: | | SAUW: | | SAUX: | | SAUY: | | SAB: | | SUY: | | SAUB: | | SAUM: | | SAUC: | | SAUR: | | SAUI: | | SAUD: | | SAUF: | | SAMS: | | SUH: | | SEP: | | SER: | | SEPP: | | SEPS: | | SHA: | | SHH: | | SSP: | | SCA: | | SLG: | | SLN: | | SSD: | | SDT: | | SWA: | | SPAS: | | SXY: | | SXL: | | SXO: | | SHU: | | SCAP: | | SSCH: | | SSCZ: | | SAGQ: | | SEQO: | | SSIF: | | SCV: | | MCL: | | MCAK: | | SHV: | | ESI: | | EAN: | | EXM: | | EXU: | | PJD: | | GYM: | | PPY: | | PPM: | | PPO: | | PPOL: | | PPQ: | | PPOY: | | PMS: | | PMQ: | | PMW: | | PTA: | | PSAB: | | PDU: | | PBD: | | PGM: | | POD: | | PAEN: | | PAEF: | | PAEQ: | | PSTE: | | PAEA: | | PAEE: | | PAEH: | | PAEJ: | | PBJ: | | PRI: | | PPEO: | | PNP: | | POW: | | PBV: | | PXL: | | PYG: | | PSWU: | | PRT: | | PANA: | | PMAR: | | JEO: | | SPSY: | | LBR: | | LBK: | | LPQ: | | LPI: | | LPAP: | | LCB: | | LCZ: | | LCS: | | LCE: | | LCW: | | LCL: | | LCX: | | LBN: | | LSN: | | LMU: | | LLE: | | LPD: | | LCU: | | PCE: | | PACI: | | OOE: | | LMM: | | LGC: | | WCB: | | WJO: | | AUR: | | CAC: | | CAE: | | CAY: | | CBE: | | CBZ: | | CBEI: | | CSR: | | ROB: | | PFT: | | EUC: | | FRO: | | ERB: | | CDX: | | RHA: | | ROA: | | CMI: | | CMS: | | CMC: | | CMH: | | MIM: | | MIH: | | MICR: | | CUM: | | CUB: | | AGY: | | CART: | | ART: | | ARR: | | ARE: | | ARH: | | ARZ: | | AAU: | | APN: | | PSUL: | | AAI: | | GAR: | | KPL: | | SATK: | | BRX: | | AMQ: | | PSEE: | | PSEQ: | | PECQ: | | BDE: | | BDN: | | BANG: | | OLO: | | ABAO: | | TTR: | | RBA: | | PIR: | | TRS: | | ABAC: | | STR: | | RBAR: | | CPI: | | PEP: | | PCM: | | PSTY: | | MUP: | | CMR: | | CAMU: | | EVI: | | ALM: | | PKO: | | ZPR: | | MARM: | | CAO: | | CBAL: | | CBAT: | | ZGA: | | MPG: | | MJA: | | MFE: | | MVU: | | MFS: | | MIF: | | MJH: | | MIG: | | MMP: | | MMQ: | | MMX: | | MMZ: | | MMD: | | MMAK: | | MMAO: | | MAE: | | MVN: | | MOK: | | MAC: | | MBA: | | MBY: | | MBW: | | MBAR: | | MBAK: | | MMA: | | MMAZ: | | MMJ: | | MMAC: | | MVC: | | MEK: | | MLS: | | METM: | | MEF: | | MEQ: | | MSJ: | | MSZ: | | MSW: | | MTHE: | | MTHR: | | MHOR: | | MBU: | | MMET: | | MMH: | | MHAZ: | | MEV: | | MZH: | | MPY: | | MHZ: | | MTP: | | MCJ: | | MHI: | | MHU: | | MLA: | | MEM: | | MBG: | | MEMA: | | MPI: | | MBN: | | MFO: | | MPL: | | MPD: | | MEZ: | | RCI: | | MTH: | | MMG: | | METC: | | MWO: | | MST: | | MSI: | | MRU: | | MEB: | | MMIL: | | MEYE: | | MOL: | | MEL: | | MEW: | | METH: | | MFC: | | MFI: | | MCUB: | | MFV: | | MKA: | | AFU: | | AFG: | | APO: | | AVE: | | AST: | | FPL: | | GAC: | | GAH: | | TAR: | | MAX: | | MER: | | MEAR: | | MARC: | | PHO: | | PAB: | | PFU: | | PFI: | | PYN: | | PYA: | | PYS: | | PYC: | | TKO: | | TON: | | TGA: | | TSI: | | TBA: | | THE: | | THA: | | THM: | | TLT: | | THS: | | TNU: | | TEU: | | TGY: | | THV: | | TPEP: | | PPAC: | | ABI: | | ACF: | | APE: | | ACJ: | | SMR: | | SHC: | | IHO: | | IIS: | | DKA: | | DFD: | | DMU: | | TAG: | | IAG: | | THG: | | HBU: | | PFM: | | PDL: | | SSO: | | SOL: | | SSOA: | | SSOL: | | SSOF: | | STO: | | SAI: | | SACN: | | SACR: | | SACS: | | SIS: | | SIA: | | SIM: | | SID: | | SIY: | | SIN: | | SII: | | SIH: | | SIR: | | SIC: | | SULA: | | MSE: | | MCN: | | AHO: | | AMAN: | | PAI: | | PIS: | | PCL: | | PAS: | | PYR: | | POG: | | TNE: | | PYW: | | CMA: | | TUZ: | | TTN: | | VDI: | | VMO: | | TPE: | | THB: | | TCB: | | ASC: | | CLG: | | FFO: | | KCR: | | BARC: | | BARB: | | LOKI: | | » show all
 |
| Reference |
|
| Authors |
Ferenci T, Strom T, Quayle JR |
| Title |
Purification and properties of 3-hexulose phosphate synthase and phospho-3-hexuloisomerase from Methylococcus capsulatus. |
| Journal |
Biochem. J. 144 (1974) 477-86. |
| Reference |
|
| Authors |
Kato N, Ohashi H, Tani Y, Ogata K |
| Title |
3-Hexulosephosphate synthase from Methylomonas aminofaciens 77a. Purification, properties and kinetics. |
| Journal |
Biochim. Biophys. Acta. 523 (1978) 236-44. |
| Reference |
|
| Authors |
Yanase H, Ikeyama K, Mitsui R, Ra S, Kita K, Sakai Y, Kato N |
| Title |
Cloning and sequence analysis of the gene encoding 3-hexulose-6-phosphate synthase from the methylotrophic bacterium, Methylomonas aminofaciens 77a, and its expression in Escherichia coli. |
| Journal |
FEMS. Microbiol. Lett. 135 (1996) 201-5. |
| Sequence |
|
| Reference |
|
| Authors |
Yurimoto H, Kato N, Sakai Y |
| Title |
Assimilation, dissimilation, and detoxification of formaldehyde, a central metabolic intermediate of methylotrophic metabolism. |
| Journal |
Chem. Rec. 5 (2005) 367-75. |
| Reference |
|
| Authors |
Kato N, Yurimoto H, Thauer RK |
| Title |
The physiological role of the ribulose monophosphate pathway in bacteria and archaea. |
| Journal |
Biosci. Biotechnol. Biochem. 70 (2006) 10-21. |
| Reference |
|
| Authors |
Orita I, Yurimoto H, Hirai R, Kawarabayasi Y, Sakai Y, Kato N |
| Title |
The archaeon Pyrococcus horikoshii possesses a bifunctional enzyme for formaldehyde fixation via the ribulose monophosphate pathway. |
| Journal |
J. Bacteriol. 187 (2005) 3636-42. |
| Sequence |
|
| Reference |
7 |
| Authors |
Kato, N., Miyamoto, N., Shimao, M. and Sakazawa, C. |
| Title |
3-Hexulose phosphate pynthase from a new facultative methylotroph, Mycobacterium gastri MB19. |
| Journal |
Agric. Biol. Chem. 52 (1988) 2659-2661. |
| Other DBs |
ExplorEnz - The Enzyme Database: IUBMB Enzyme Nomenclature: ExPASy - ENZYME nomenclature database: BRENDA, the Enzyme Database: |