1UN1,2UWA,2VH9,2UWC,2UWB,1UMZ


Conserved Protein Domain Family
GH16_XET
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cd02176: GH16_XET 
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Xyloglucan endotransglycosylase, member of glycosyl hydrolase family 16
Xyloglucan endotransglycosylases (XETs) cleave and religate xyloglucan polymers in plant cell walls via a transglycosylation mechanism. Xyloglucan is a soluble hemicellulose with a backbone of beta-1,4-linked glucose units, partially substituted with alpha-1,6-linked xylopyranose branches. It binds noncovalently to cellulose, cross-linking the adjacent cellulose microfibrils, giving it a key structural role as a matrix polymer. Therefore, XET plays an important role in all plant processes that require cell wall remodeling.
Links
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Statistics
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PSSM-Id: 185685
Aligned: 44 rows
Threshold Bit Score: 366.139
Created: 25-Oct-2004
Updated: 2-Oct-2020
Structure
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Program:
Drawing:
Aligned Rows:
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active sitecatalytic
Conserved site includes 18 residues -Click on image for an interactive view with Cn3D
Feature 1:active site [active site]
Evidence:
  • Structure:2VH9; Tropaeolum majus endo-xyloglucanase with oligosaccharide bound to donor subsites, contact 4A
  • Structure:1UMZ; Populus tremula xyloglucan endotransglycosylase with xyloglucan nonasaccharide bound bound to acceptor subsite, contact 4A
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Sequence Alignment
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Format: Row Display: Color Bits: Type Selection: 
Feature 1                 ##                    ##                              # # #         
1UN1_A     12 PVDVAFGrNYVPTWaFDHIKYFnggnEIQLHLDkYTGTGFQSKGSYLFGHFSMQMKLVP-GDSAGTVTAFYLSSqn---s 87  European aspen
2VH9_A     38 ITSLGFDqGYTNLWgPQHQRVDq--gSLTIWLDsTSGSGFKSINRYRSGYFGANIKLQS-GYTAGVITSFYLSNnqdypg 114 nasturtium
2UWC_A     14 ITSLGFDqGYTNLWgPQHQRVDq--gSLTIWLDsTSGSGFKSINRYRSGYFGANIKLQS-GYTAGVITSFYLSNnqdypg 90  nasturtium
2UWB_A     15 ITSLGFDqGYTNLWgPQHQRVDq--gSLTIWLDsTSGSGFKSINRYRSGYFGANIKLQS-GYTAGVITSFYLSNnqdypg 91  nasturtium
Q8LC45     38 FSKIAIEnGFSRRFgAHNIQVNg--sLAKLTLDkSSGAGLVSKNKYHYGFFSARLKLPA-GFASGVVVAFYLSNaetypk 114 thale cress
Q38908     27 LNTLSFEeSLSPLFgDANLVRSpddlSVRLLLDrYTGSGFISSNMYQHGFYSSMIKLPA-DYTAGVVVAFYTSNgdvfek 105 thale cress
ABK23544   25 FKTLKFSeGYVNLWgGQHQNISkdesAVTLALDrSSGSGFKSNEPYMYGFFNAAVKLQG-GYTAGIITSFYLSNsqvyeg 103 Sitka spruce
Q38909     26 LPLIQFDeGYTQLFgDQNLIVHrdgkSVRLTLDeRTGSGFVSNDIYLHGFFSSSIKLPA-DYSAGVVIAFYLSNgdlyek 104 thale cress
ABK24235   41 FASLRFEeGYTSLFgEDNVKVAedgkAVMLSLDkRTGSGLLSQDMYMYGLFSASIKLPD-DYTAGVVVAFYTSNgdifqg 119 Sitka spruce
CAO24298   43 AYSTPFDrWFFKVFgDENIKSVhngtVAKISLDqKTGSEFVSSDIFLHGYFSASIKLPRnQDTAGVVVAFFTMNqdiysr 122 wine grape

Feature 1        # # #            # #               # #                                       
1UN1_A     88 EHDEIDFEFLGNrtgqPYILQTNVFTGGKGd------REQRIYLWFDPTKEFHYYSVLWNMYMIVFLVDDVPIRVFKNck 161 European aspen
2VH9_A    115 KHDEIDIEFLGTipgkPYTLQTNVFIEGSGd------REMRIHLWFDPTQDYHNYAIYWTPSEIIFFVDDVPIRRYPRk- 187 nasturtium
2UWC_A     91 KHDEIDIEFLGTipgkPYTLQTNVFIEGSGdyn-iigRELRIHLWFDPTQDYHNYAIYWTPSEIIFFVDDVPIRRYPRk- 168 nasturtium
2UWB_A     92 KHDEIDIEFLGTipgkPYTLQTNVFIEGSGd------REMRIHLWFDPTQDYHNYAIYWTPSEIIFFVDDVPIRRYPRk- 164 nasturtium
Q8LC45    115 SHDEIDIELLGRsrrdDWTIQTNVYANGSTrt----gREEKFYFWFDPTQAFHDYTLIWNSHHTVFLVDNIPVRQFPNrg 190 thale cress
Q38908    106 THDELDIEFLGNikgkPWRFQTNLYGNGSThr----gREERYRLWFDPSKEFHRYSILWTPHKIIFWVDDVPIREVIRnd 181 thale cress
ABK23544  104 WHDEIDIEFLGTipgePYKLQTNVYGNGTGdgpnligREQQFHLWFDPTKDFHNYTILWTPHQILFMVDSIPIRRFPKmk 183 Sitka spruce
Q38909    105 NHDEIDFEFLGNirgrEWRIQTNIYGNGSThl----gREERYNLWFDPTEDFHQYSILWSLSHIIFYVDNVPIREVKRta 180 thale cress
ABK24235  120 THDELDFEFLGNirgkEWRIQTNVYGNGSTaf----gREERYTLWFDPTEDFHQYTILWTDKRTLFFVDDVPIREIPRta 195 Sitka spruce
CAO24298  123 NQDEATFEFLGNvkgkEWVVQTNIHGNTTIrn----sTKERYTLWFDPSADFHKYSILWTENHIIFYVDDVPIRLFMRtk 198 wine grape

Feature 1                     # #   ##                                                        
1UN1_A    162 dlGVKFPfnQPMKIYSSLWNADDWATRggleKTDWSkAPFIASYRSFHIDgceasveakfcatqg---------arwwdq 232 European aspen
2VH9_A    188 -sDATFPl-RPLWVYGSVWDASSWATEngkyKADYRyQPFVGKYEDFKLGsctveaasscnp---------------asv 250 nasturtium
2UWC_A    169 -sDATFPl-RPMWVYGSVWDASSWATEngkyKADYRyQPFVGKYEDFKLGsctveaasscnp---------------asv 231 nasturtium
2UWB_A    165 -sDATFPl-RPLWVYGSVWDASSWATEngkyKADYRyQPFVGKYEDFKLGsctveaasscnp---------------asv 227 nasturtium
Q8LC45    191 afTSAYPs-KPMSLYVTVWDGSEWATKggkyPVNYKyAPFVVSVADVELSgcsvnngsstgsgpctksggsissldpvdg 269 thale cress
Q38908    182 amGADYPa-KPMALYATIWDASDWATSggkyKANYKfAPFVAEFKSFSLDgcsvdpiqevpmdcsd-------svdfles 253 thale cress
ABK23544  184 slGVTYPs-KPMSAYATIWDASSWATDggkyKANYTyEPFLSTYTNFITIgcsskneddmrycsq----------gfldc 252 Sitka spruce
Q38909    181 smGGDFPa-KPMSLYSTIWDGSKWATDggkyGVNYKyAPYVSQFTDLILHgcavdptekfpsckd---------eavqnl 250 thale cress
ABK24235  196 amGAHYPs-KPMSVYATVWDGSDWATKggryRVNYKySPFVVSLSNLVLEgcavdpleqfhtvscpa-----dttssdsl 269 Sitka spruce
CAO24298  199 aiGNYFIt-SPMYVYGSIRDGSDWATDggkqKVDYKyAPFTAAFSELILLgcpadpidlkpycid---------edpwek 268 wine grape

Feature 1                                              
1UN1_A    233 kefqdldafQYRRLSWVRQKYTIYNYCTDrsryp-smppEC 272 European aspen
2VH9_A    251 spygqlsqqQVAAMEWVQKNYMVYNYCDDptrdh-tltpEC 290 nasturtium
2UWC_A    232 spygqlsqqQVAAMEWVQKNYMVYNYCDDptrdh-tltpEC 271 nasturtium
2UWB_A    228 spygqlsqqQVAAMEWVQKNYMVYNYCDDptrdh-tltpEC 267 nasturtium
Q8LC45    270 qdfatlsknQINAMDWARRKLMFYSYCSDkpryk-vmpaEC 309 thale cress
Q38908    254 qdyssinshQRAAMRRFRQRFMYYSYCYDtlryp-eplpEC 293 thale cress
ABK23544  253 fispklnkdQIRALDLVRKNYMTYDYCQDlqrypkgtmpEC 293 Sitka spruce
Q38909    251 rlaseitesQRNKMEIFRQKHMTYSYCYDhmryk-vvlsEC 290 thale cress
ABK24235  270 sqfselsedQKALMEWFRSKYISYSYCDDdvryp-ttpaDC 309 Sitka spruce
CAO24298  269 kvptgltrkEITQMRRFRHKFMTYSYCFDkeryp-vtppEC 308 wine grape

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