Top cofit genes for SMa0678 from Sinorhizobium meliloti 1021

putrescine transporter
SEED: Lysine/cadaverine antiporter membrane protein CadB
KEGG: putrescine:ornithine antiporter

Rank	Hit	Name	Description	Conserved?	Cofitness
1	SM_b21530		sulfoacetaldehyde acetyltransferase	no	0.28
2	SMc00030		hypothetical protein	no	0.26
3	SMa1641		NreB protein	no	0.25
4	SMc02390		glutathione S-transferase	no	0.24
5	SMc02370		aminopeptidase N	0.54	0.23
6	SMa1676		hypothetical protein	no	0.23
7	SMa1262		hypothetical protein	no	0.23
8	SMc04330		trimethylamine methyltransferase	no	0.23
9	SMa2143		5,10-methylenetetrahydrofolate reductase	no	0.22
10	SM_b21605		sugar uptake ABC transporter ATP-binding protein	no	0.22
11	SM_b21237		sulfotransferase domain-containing protein	no	0.22
12	SM_b21378		hypothetical protein	no	0.21
13	SMa2033		Transglycosylase	no	0.21
14	SMc01457		transport transmembrane protein	no	0.21
15	SMa0160		GntR family transcriptional regulator	no	0.21
16	SMa2241		hypothetical protein	no	0.21
17	SMa1332		hypothetical protein	no	0.21
18	SMa1672		hypothetical protein	no	0.20
19	SMc00117		hypothetical protein	0.55	0.20
20	SMa1670		arginine deiminase	0.56	0.20

Or look for negative cofitness