| [B] Gluconacetobacter diazotrophicus (strain ATCC 49037 / DSM 5601 / PAl5) | GLUDA02481 | A9HNQ5 | GumK protein |
| [B] Azoarcus sp. (strain BH72) | AZOSB02226 | A1K7P7 | putative glucuronyl transferase 64% High confidence in function and specificity |
| [B] Cellvibrio japonicus (strain Ueda107) | CELJU00604 | B3PJL2 | UDP-GlcA beta-glucuronosyltransferase, putative, gt70A |
| [B] Xanthomonas axonopodis (pv. citri) | XANAC02500 | Q8PJF6 | identified by sequence similarity; putative; ORF located using Blastx/Glimmer/Genemark GumK protein |
| [B] Xanthomonas campestris pv. campestris | XANCP02373 | Q7CLR5 | GumK protein |
| [B] Xanthomonas campestris pv. campestris (strain 8004) | XANC801607 | Q4UW40 | GumK protein |
| [B] Xanthomonas campestris pv. campestris (strain B100) | XANCB01718 | B0RRI6 | Glucuronosyltransferase |
| [B] Xanthomonas campestris pv. vesicatoria (strain 85-10) | XANC502708 | Q3BRV4 | xanthan biosynthesis glucuronosyltransferase GumK |
| [B] Xanthomonas oryzae (pv. oryzae) | XANOR02840 | Q5GXZ7 | identified by sequence similarity; putative; ORF located using Blastx/Glimmer/Genemark glucuronosyltransferase GumK |
| [B] Xanthomonas oryzae pv. oryzae (strain MAFF 311018) | XANOM02762 | Q2P112 | glucuronosyltransferase GumK identified by sequence similarity; putative; ORF located using Blastx/Glimmer/GeneHacker |
| [B] Xanthomonas oryzae pv. oryzae (strain PXO99A) | XANOP02938 | B2SUK5 | Exopolysaccharide xanthan biosynthesis glucuronosyltransferase GumK |
| [B] Xylella fastidiosa | XYLFA02313 | Q9PAY4 | similar to GI|2120733 (percent identity: 69 %/query alignment coverage: 98.9 %/subject alignment coverage: 94.2 %); identified by sequence similarity; putative; ORF located using Glimmer/RBSfinder/Start codon shift: 339 GumK protein |
| [B] Xylella fastidiosa (strain M12) | XYLFM01341 | B0U3L5 | GumK protein |
| [B] Xylella fastidiosa (strain M23) | XYLF201385 | B2I6H5 | Xanthan biosynthesis glucuronosyltransferase GumK |
| [B] Xylella fastidiosa (strain Temecula1 / ATCC 700964) | XYLFT01296 | Q87BR0 | GumK protein |