Entry
Name
O-antigen ligase;
waaL (gene name);
surface polymer:lipid A-core ligase;
rfaL (gene name)
Class
Transferases;
Glycosyltransferases;
Transferring other glycosyl groups
BRITE hierarchy
Sysname
lipid-linked O-antigen:lipid A-core oligosaccharide O-antigen transferase (configuration-inverting)
Reaction(IUBMB)
a lipid-linked O antigen + a lipid A-core oligosaccharide = a lipopolysaccharide + a polyisoprenyl diphosphate
Substrate
lipid-linked O antigen;
lipid A-core oligosaccharide
Product
lipopolysaccharide [CPD:
C00338 ];
polyisoprenyl diphosphate
Comment
This Gram-negative bacterial enzyme attaches the polymerized O antigen molecule to the outer core region of the lipid A-core oligosaccharide, finalizing the biosynthesis of the lipopolysaccharide. Prior to the reaction the two substrates are attached to the periplasmic-facing side of the inner membrane, and the enzyme transfers the O-antigen from its polyprenyl diphosphate membrane anchor (usually ditrans,octacis-undecaprenyl diphosphate) to a terminal sugar of the lipid A-core oligosaccharide. Despite the popular name "ligase", the enzyme is not a real ligase, as the reaction does not involve the hydrolysis of a phosphate bond in a triphosphate. The enzyme is embedded in the inner membrane and often has 12 trans-membrane segments. It is a metal-independent inverting glycosyltransferase, and in some cases it can attach surface polymers other than O-antigens to the lipid A-core oligosaccharide.
History
EC 2.4.99.26 created 2023
Orthology
Genes
ECOO : ECRM13514_4613(waaL)
ECOH : ECRM13516_4411(waaL)
EDJ : ECDH1ME8569_3507(rfaL)
ECOI : ECOPMV1_03957(rfaL)
SSN : SSON_3783(waaL) SSON_P227(wzy)
REE : electrica_00124(rfaL)
CLAP : NCTC11466_04528(rfaL)
KIE : NCTC12125_03939(rfaL)
AHN : NCTC12129_04880(rfaL)
PSHI : SAMEA2665130_0113 SAMEA2665130_2886(rfaL)
SMW : SMWW4_v1c47600(rfaL)
SLQ : M495_16175 M495_24230
SFG : AV650_03560 AV650_13620
SERM : CLM71_00535 CLM71_23150
SOF : NCTC11214_01617(rfaL)
RAH : Rahaq_2664 Rahaq_4346
RACE : JHW33_03850 JHW33_16140
ROX : BV494_23800 BV494_25005
ECA : ECA0161(waaL2) ECA0162(waaL1)
PATR : EV46_00845 EV46_00850
PATO : GZ59_01720(waaL2) GZ59_01740(waaL1)
PWA : Pecwa_4372 Pecwa_4374
EBI : EbC_00740(waaL) EbC_pEb10200130(waaL)
TPTY : NCTC11468_03307(rfaL)
PTHA : OI982_12415 OI982_12435(rfaL)
AAPC : QG404_00675(rfaL) QG404_01665(rfaL)
LRI : NCTC12151_00493(rfaL)
HPIT : NCTC13334_00867(rfaL)
HHZ : NCTC10839_00790(rfaL)
HAEG : NCTC8502_00130(rfaL)
MHAT : B824_22400 B824_22410
AVT : NCTC3438_00650 NCTC3438_01776
RPNE : NCTC8284_00771(rfaL)
PAET : NCTC13378_01380(rfaL)
XPH : XppCFBP6546_15400(XppCFBP6546P_15400)
VPL : SA104470976_02505(waaL)
VSA : VSAL_I0160(waaL) VSAL_I0263
MARA : D0851_16005 D0851_16010
KIM : G3T16_08210 G3T16_08325
LLG : 44548918_00096 44548918_01700
SPIU : SPICUR_09115 SPICUR_09140
HCS : FF32_16400 FF32_18530
HAM : HALO2677 HALO3209 HALO4512
HCO : LOKO_01025(rfaL_1) LOKO_01332(rfaL_2)
HSI : BOX17_14785 BOX17_14805
HALO : BWR19_07330 BWR19_08440 BWR19_10070
HSV : HNO53_09375 HNO53_09875
HPRO : LMS44_00080 LMS44_09900
HALW : B6N23_00335 B6N23_02000
HPIS : P1P91_00305 P1P91_14990
HAMS : NF683_18215 NF683_21100
HCAM : I4484_11255 I4484_11720 I4484_12540
HAAH : HALA3H3_360026 HALA3H3_910024
HAMC : HNO52_10720 HNO52_12725
HADN : NKF27_08795 NKF27_12410
HAMZ : P8S55_02985 P8S55_05010
HVN : EI420_10775 EI420_13860
HTT : HZS52_04295 HZS52_18165
HSX : HNO51_10960 HNO51_11430
HTX : EKK97_12245 EKK97_12755
CMAI : BFX80_06420 BFX80_06595
CAMH : LCW13_10810 LCW13_11035
PAUR : FGL86_11265 FGL86_12035 FGL86_13805
ALCA : ASALC70_04098(rfaL)
MFOI : JSY38_06560 JSY38_06580
AEL : NCTC12917_03984(rfaL)
SUTR : L0B52_05515 L0B52_05535
CCUP : BKK81_07240 BKK81_07250
CUP : BKK80_06540 BKK80_06550
CUU : BKK79_05600 BKK79_05610
BGD : bgla_1g04510 bgla_1g29980
BGP : BGL_1c03970 BGL_1c28390
BPLA : bpln_1g03870 bpln_1g27640
PPNO : DA70_07985 DA70_20210
PPNM : LV28_10170 LV28_22595
PRB : X636_06325 X636_18285
PSPU : NA29_00175 NA29_03340
PFG : AB870_07410 AB870_10385
BPT : Bpet2839 Bpet4837(waaL)
BHO : D560_0217 D560_1301 D560_3883
BHM : D558_0213 D558_1291 D558_3855 D558_3857
AXO : NH44784_008071 NH44784_060991
AXN : AX27061_1228 AX27061_4344
AXX : ERS451415_01226(rfaL) ERS451415_04363
APES : FOC84_06940 FOC84_13775
PUS : CKA81_13365 CKA81_13370
OUE : I6G29_01515 I6G29_08720
HSE : Hsero_3565(rfaL) Hsero_3570
HSZ : ACP92_17775 ACP92_17800
NCO : AAW31_00100 AAW31_15885 AAW31_18435
NMU : Nmul_A0418 Nmul_A1429
MAM : Mesau_02810 Mesau_05016
NRH : T8J41_00790 T8J41_19105
RET : RHE_CH00790 RHE_PB00003
REI : IE4771_CH00825 IE4771_PE00329
RTR : RTCIAT899_CH18230(waaL)
RHR : CKA34_01525 CKA34_02295
RBQ : J2J99_04170 J2J99_33245
BJU : BJ6T_28070 BJ6T_37800 BJ6T_54980
BJP : RN69_13710 RN69_18330
BRS : S23_17000 S23_23290 S23_39710
BRC : BCCGELA001_23730 BCCGELA001_25220
BRAD : BF49_5037 BF49_5720
BIC : LMTR13_21355 LMTR13_28255
BRK : CWS35_23135 CWS35_31530
BGQ : X265_14060 X265_18085
BBET : F8237_00210 F8237_23640 F8237_26735
BARH : WN72_23715 WN72_32920
BEL : BE61_40950 BE61_59650
BDG : LPJ38_30095 LPJ38_31635
BSEP : HAP48_0036890 HAP48_0047275
BSEI : KMZ68_21025 KMZ68_21030
BBAN : J4G43_024795 J4G43_035475 J4G43_039295
BCAN : BcanWSM471_26290 BcanWSM471_29130
BAUT : QA635_15875 QA635_23505
BBRA : QA636_16385 QA636_24075
BCOU : IC761_08875 IC761_12005
BXN : I3J27_25620 I3J27_28565
BROS : QUH67_25595 QUH67_25600
BRAY : ML401_22835 ML401_27015
ATX : GCD22_00321 GCD22_02954
MFN : Ga0123462_0563 Ga0123462_0565
HCL : NCTC13205_01337(rfaL)
BVIR : I6J59_07155 I6J59_07160
NKO : Niako_5570 Niako_5576
FGG : FSB75_12420 FSB75_15975
LACS : H4075_17475 H4075_20225
MUH : HYN43_011020 HYN43_012220
MGK : FSB76_27260 FSB76_30430
MGOS : DIU38_002920 DIU38_012965
HYD : PK28_15615 PK28_15755
HYE : AM218_00735 AM218_00875
HYG : AUC43_07960 AUC43_13800
HYH : D3Y59_16000 D3Y59_16145
HYJ : FHG12_11580 FHG12_11720
HRS : HER32_07845 HER32_07985
HBN : GUY19_16910 GUY19_17055
HMT : MTP16_02275 MTP16_15700
RUF : TH63_04865 TH63_05870
RTI : DC20_00870 DC20_16750
RUD : TH61_12615 TH61_15765
NIB : GU926_00240 GU926_03465
ADD : HUW48_13305 HUW48_20765
ASWU : HUW51_03550 HUW51_20545
FSN : GS03_00606 GS03_00616
ASL : Aeqsu_1196 Aeqsu_1205
NOM : AAT17_07650 AAT17_07660
NSD : BST91_11145 BST91_11155
AQB : D1818_14285 D1818_14375
AQA : D1815_16890 D1815_16990
AQD : D1816_16130 D1816_16200
GAA : HX109_11080 HX109_12635
MGEL : G5B37_10225 G5B37_10240
CHYD : H4K34_10435 H4K34_10480
BBAU : AEM51_00170 AEM51_04115
VDN : NCTC11831_00021 NCTC11831_01259
ABRA : BN85301250 BN85312420
AACI : ASQ49_02415 ASQ49_02530
» show all
Taxonomy
Reference
Authors
MacLachlan PR, Kadam SK, Sanderson KE
Title
Cloning, characterization, and DNA sequence of the rfaLK region for lipopolysaccharide synthesis in Salmonella typhimurium LT2.
Journal
Sequence
Reference
Authors
Whitfield C, Amor PA, Koplin R.
Title
Modulation of the surface architecture of gram-negative bacteria by the action of surface polymer:lipid A-core ligase and by determinants of polymer chain length.
Journal
Reference
Authors
Ruan X, Loyola DE, Marolda CL, Perez-Donoso JM, Valvano MA.
Title
The WaaL O-antigen lipopolysaccharide ligase has features in common with metal ion-independent inverting glycosyltransferases.
Journal
Reference
Authors
Ruan X, Monjaras Feria J, Hamad M, Valvano MA.
Title
Escherichia coli and Pseudomonas aeruginosa lipopolysaccharide O-antigen ligases share similar membrane topology and biochemical properties.
Journal
Other DBs
ExPASy - ENZYME nomenclature database: 2.4.99.26
LinkDB
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