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NiceZyme View of ENZYME: EC 2.3.1.180

Accepted Name
Beta-ketoacyl-acyl-carrier-protein synthase III.
Alternative Name(s)
3-ketoacyl-acyl carrier protein synthase III.
3-oxoacyl:ACP synthase III.
Beta-ketoacyl (acyl carrier protein) synthase III.
Beta-ketoacyl-ACP synthase III.
Beta-ketoacyl-acyl carrier protein synthase III.
KAS III.
KASIII.
Reaction catalysed
Acetyl-CoA + malonyl-[acyl-carrier-protein] <=> acetoacyl-[acyl-carrier-protein] + CoA + CO(2)
Comment(s)
  • Involved in the dissociated (or type II) fatty-acid biosynthesis system that occurs in plants and bacteria.
  • In contrast to EC 2.3.1.41 and EC 2.3.1.179, this enzyme specifically uses CoA thioesters rather than acyl-ACP as the primer.
  • In addition to the above reaction, the enzyme can also catalyze the reaction of EC 2.3.1.38, but to a much lesser extent.
  • Responsible for initiating both straight- and branched-chain fatty- acid biosynthesis, with the substrate specificity in an organism reflecting the fatty-acid composition found in that organism.
  • For example, Streptococcus pneumoniae, a Gram-positive bacterium, is able to use both straight- and branched-chain (C4--C6) acyl-CoA primers whereas Escherichia coli, a Gram-negative organism, uses primarily short straight-chain acyl CoAs, with a preference for acetyl-CoA.
Cross-references
BRENDA2.3.1.180
EC2PDB2.3.1.180
PRIAM enzyme-specific profiles2.3.1.180
KEGG Ligand Database for Enzyme Nomenclature2.3.1.180
IUBMB Enzyme Nomenclature2.3.1.180
IntEnz2.3.1.180
MEDLINEFind literature relating to 2.3.1.180
MetaCyc2.3.1.180
UniProtKB/Swiss-Prot
Q81JG0, FABH1_BACAN;  Q81GM0, FABH1_BACCR;  Q9K8W9, FABH1_BACHD;  
O34746, FABH1_BACSU;  Q8ABI8, FABH1_BACTN;  P49244, FABH1_CUPWR;  
Q9RT23, FABH1_DEIRA;  Q88YZ4, FABH1_LACPL;  Q8CPT4, FABH1_STAES;  
Q82BB8, FABH1_STRAW;  P72392, FABH1_STRCO;  Q9KQH5, FABH1_VIBCH;  
Q87N20, FABH1_VIBPA;  Q8D8G6, FABH1_VIBVU;  Q7M7J9, FABH1_VIBVY;  
Q81JF6, FABH2_BACAN;  Q81F42, FABH2_BACCR;  Q9KET5, FABH2_BACHD;  
O07600, FABH2_BACSU;  Q8A137, FABH2_BACTN;  P49245, FABH2_CUPWR;  
Q9RT22, FABH2_DEIRA;  Q88WG8, FABH2_LACPL;  Q8CUB8, FABH2_STAES;  
Q82M29, FABH2_STRAW;  Q9Z4Y5, FABH2_STRCO;  Q9KLJ3, FABH2_VIBCH;  
Q87HJ2, FABH2_VIBPA;  Q8D719, FABH2_VIBVU;  Q7M7I3, FABH2_VIBVY;  
O54151, FABH3_STRCO;  Q9ZBV4, FABH4_STRCO;  Q9JN82, FABH5_STRCO;  
Q9PMZ6, FABHL_CAMJE;  B0CE67, FABH_ACAM1;  A9NFF0, FABH_ACHLI;  
Q8UG62, FABH_AGRT5;  Q8Z062, FABH_ANASP;  O67185, FABH_AQUAE;  
P49243, FABH_ARATH;  Q7VR18, FABH_BLOFL;  Q7WD20, FABH_BORBR;  
Q7W5I4, FABH_BORPA;  Q7VW29, FABH_BORPE;  Q89K89, FABH_BRAJA;  
Q8YGH9, FABH_BRUME;  Q8G1E0, FABH_BRUSU;  A4XJW0, FABH_CALS8;  
Q9PIH1, FABH_CAMJE;  Q9A8I4, FABH_CAUCR;  Q820E6, FABH_CHLCV;  
Q9PKF5, FABH_CHLMU;  Q9Z8P0, FABH_CHLPN;  Q8KAP2, FABH_CHLTE;  
O84242, FABH_CHLTR;  Q7NSK7, FABH_CHRVO;  Q97DA2, FABH_CLOAB;  
A6LSC2, FABH_CLOB8;  A5N4E1, FABH_CLOK5;  Q8XLH3, FABH_CLOPE;  
Q899P3, FABH_CLOTE;  A9KEA1, FABH_COXBN;  A9NBY3, FABH_COXBR;  
Q820X0, FABH_COXBU;  A5EXD7, FABH_DICNV;  A8LLT4, FABH_DINSH;  
P0A6R2, FABH_ECO57;  P0A6R1, FABH_ECOL6;  B1IUH4, FABH_ECOLC;  
P0A6R0, FABH_ECOLI;  Q820T1, FABH_ENTFA;  Q6D690, FABH_ERWCT;  
Q8RGX7, FABH_FUSNN;  Q7NF35, FABH_GLOVI;  Q6B945, FABH_GRATL;  
Q7U337, FABH_HAEDU;  P43711, FABH_HAEIN;  B0UUZ0, FABH_HAES2;  
P59813, FABH_HELHP;  Q9ZMN0, FABH_HELPJ;  O24994, FABH_HELPY;  
Q9CHG0, FABH_LACLA;  Q929H1, FABH_LISIN;  Q71XG3, FABH_LISMF;  
Q8Y573, FABH_LISMO;  Q606L3, FABH_METCA;  B0JXE2, FABH_MICAN;  
P0A575, FABH_MYCBO;  Q73SP5, FABH_MYCPA;  P0A574, FABH_MYCTU;  
A9M142, FABH_NEIM0;  Q9JW56, FABH_NEIMA;  Q9JXR6, FABH_NEIMB;  
Q82U60, FABH_NITEU;  Q8ERU6, FABH_OCEIH;  Q9CJS8, FABH_PASMU;  
Q7N384, FABH_PHOLL;  A4SVV4, FABH_POLSQ;  Q7MAV3, FABH_PORGI;  
P51196, FABH_PORPU;  P31176, FABH_PORUM;  Q1XDU1, FABH_PORYE;  
Q7VE55, FABH_PROMA;  Q7V4F6, FABH_PROMM;  Q7V3E0, FABH_PROMP;  
A4SCL4, FABH_PROVI;  Q9HYR2, FABH_PSEAE;  Q8Y0J4, FABH_RALSO;  
Q982Z8, FABH_RHILO;  Q92QT4, FABH_RHIME;  P59814, FABH_RHOBA;  
P30790, FABH_RHOCA;  Q1RKA5, FABH_RICBR;  Q92GC1, FABH_RICCN;  
Q4UK49, FABH_RICFE;  Q9ZCH1, FABH_RICPR;  B0BV80, FABH_RICRO;  
Q68VX7, FABH_RICTY;  A7NK75, FABH_ROSCS;  A5UWI7, FABH_ROSS1;  
A9MGC9, FABH_SALAR;  A9N5L3, FABH_SALPB;  Q8Z7J6, FABH_SALTI;  
O85139, FABH_SALTY;  Q8EDH1, FABH_SHEON;  Q83RS8, FABH_SHIFL;  
Q07510, FABH_SPIOL;  A6U089, FABH_STAA2;  A5IRG0, FABH_STAA9;  
Q5HHA2, FABH_STAAC;  P68795, FABH_STAAM;  P99159, FABH_STAAN;  
Q6GIA4, FABH_STAAR;  Q6GAU3, FABH_STAAS;  A8Z088, FABH_STAAT;  
Q8NXE2, FABH_STAAW;  Q5HQI2, FABH_STAEQ;  Q4L4Z3, FABH_STAHJ;  
Q49WB6, FABH_STAS1;  P64112, FABH_STRA3;  P64113, FABH_STRA5;  
Q54206, FABH_STRGA;  A8AYW5, FABH_STRGC;  Q9F6D4, FABH_STRLI;  
Q8DSN2, FABH_STRMU;  Q99YD2, FABH_STRP1;  P64114, FABH_STRP3;  
Q5XAE0, FABH_STRP6;  P64115, FABH_STRP8;  P0A3C5, FABH_STRPN;  
P0A3C6, FABH_STRR6;  P73951, FABH_SYNY3;  Q8DKL4, FABH_THEEB;  
Q8R9V7, FABH_THETN;  P64117, FABH_TROW8;  P64116, FABH_TROWT;  
Q73GG9, FABH_WOLPM;  Q8PNE8, FABH_XANAC;  Q8PBV1, FABH_XANCP;  
Q9PCG4, FABH_XYLFA;  Q87CL7, FABH_XYLFT;  Q8ZFT7, FABH_YERPE;  
P20582, PQSD_PSEAE;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.3.1.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.3.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.-.-.-

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