Entry
Name
L-carnitine CoA-transferase;
CaiB;
crotonobetainyl/gamma-butyrobetainyl-CoA:carnitine CoA-transferase
Class
Transferases;
Transferring sulfur-containing groups;
CoA-transferases
BRITE hierarchy
Sysname
(E)-4-(trimethylammonio)but-2-enoyl-CoA:L-carnitine CoA-transferase
Reaction(IUBMB)
(1) (E)-4-(trimethylammonio)but-2-enoyl-CoA + L-carnitine = (E)-4-(trimethylammonio)but-2-enoate + L-carnitinyl-CoA [RN:
R10643 ];
(2) 4-trimethylammoniobutanoyl-CoA + L-carnitine = 4-trimethylammoniobutanoate + L-carnitinyl-CoA [RN:
R10644 ]
Reaction(KEGG)
Substrate
(E)-4-(trimethylammonio)but-2-enoyl-CoA [CPD:
C20748 ];
L-carnitine [CPD:
C00318 ];
4-trimethylammoniobutanoyl-CoA [CPD:
C20749 ]
Product
(E)-4-(trimethylammonio)but-2-enoate [CPD:
C04114 ];
L-carnitinyl-CoA [CPD:
C20750 ];
4-trimethylammoniobutanoate [CPD:
C01181 ]
Comment
The enzyme is found in gammaproteobacteria such as Proteus sp. and Escherichia coli. It has similar activity with both substrates.
History
EC 2.8.3.21 created 2014
Orthology
K08298 L-carnitine CoA-transferase
Genes
ECOO : ECRM13514_0039(caiB)
ECOH : ECRM13516_0041(caiB)
ECW : EcE24377A_0040(caiB)
EDJ : ECDH1ME8569_0037(caiB)
ECOI : ECOPMV1_00039(caiB)
METY : MRY16398_47850(caiB)
PHEI : NCTC12003_00739(caiB)
LRI : NCTC12151_02503(caiB)
SCAA : TUM17387_35770(caiB)
CPIN : CPIN18020_0492(caiB)
CSCI : HDCHBGLK_01434(baiF)
PHX : KGNDJEFE_00405(baiF)
DSY : DSY0941 DSY4297 DSY4305
DHD : Dhaf_0307 Dhaf_1018 Dhaf_1026 Dhaf_4597 Dhaf_4607
DDH : Desde_0936 Desde_0944
DMT : DESME_10090 DESME_10120
ELE : Elen_1833 Elen_2883 Elen_2886
EYY : EGYY_03120(CaiB) EGYY_03150(CaiB) EGYY_17900(CaiB) EGYY_17980(CaiB) EGYY_27330(CaiB) EGYY_27410(CaiB)
EGD : GS424_010365(caiB) GS424_016620 GS424_016635
AHAT : ADCFC_03550 ADCFC_03590 ADCFC_16300
» show all
Taxonomy
Reference
Authors
Engemann C, Elssner T, Kleber HP
Title
Biotransformation of crotonobetaine to L(-)-carnitine in Proteus sp.
Journal
Sequence
Reference
Authors
Elssner T, Engemann C, Baumgart K, Kleber HP
Title
Involvement of coenzyme A esters and two new enzymes, an enoyl-CoA hydratase and a CoA-transferase, in the hydration of crotonobetaine to L-carnitine by Escherichia coli.
Journal
Sequence
Reference
Authors
Stenmark P, Gurmu D, Nordlund P
Title
Crystal structure of CaiB, a type-III CoA transferase in carnitine metabolism.
Journal
Sequence
Reference
Authors
Engemann C, Elssner T, Pfeifer S, Krumbholz C, Maier T, Kleber HP
Title
Identification and functional characterisation of genes and corresponding enzymes involved in carnitine metabolism of Proteus sp.
Journal
Sequence
Reference
Authors
Rangarajan ES, Li Y, Iannuzzi P, Cygler M, Matte A
Title
Crystal structure of Escherichia coli crotonobetainyl-CoA: carnitine CoA-transferase (CaiB) and its complexes with CoA and carnitinyl-CoA.
Journal
Sequence
Other DBs
ExplorEnz - The Enzyme Database: 2.8.3.21
ExPASy - ENZYME nomenclature database: 2.8.3.21