| ORF ID | 						TF00463 (frame 1) | 
			Gene ID | 					SMa1318 | 	
		| Position and sequences | 		719504...719782(92 aa) | 
			Gene Name/synonym | 			
			avhB3
			-		 | 
	
	| Organism | 					 Sinorhizobium meliloti 1021  | 
			Cluster | 					
			35 genes  | 
	
		| Product | 					Type IV secretion system protein VirB3 homolog | 
		| 1stcategory | 		P-T4SS | 
			2ndcategory | 		VirB3/TrbD Family | 
		| 3rdcategory | 		Conjugation | 
		| Function | 					Component of the T4SS virB/D4 homolog that is required for conjugal transfer of the pSymA. However T4SS virB/D4 homolog is not required for the intracellular survival of the bacteria, thus it appears to be dispensable for plant symbiosis. | 
		| Miscellaneus | 				
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				| References | 					
					
					
						PubMed:11481432 
					
						PubMed:17158676 
					
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