Top cofit genes for Rru_A0621 from Rhodospirillum rubrum S1H

Magnesium-chelatase, subunit H (NCBI)
SEED: Protoporphyrin IX Mg-chelatase subunit H (EC 6.6.1.1)
KEGG: magnesium chelatase subunit H

Rank	Hit	Name	Description	Conserved?	Cofitness
1	Rru_A2975		Photosynthetic reaction centre protein L subunit (NCBI)	0.78	0.95
2	Rru_A0624		2-vinyl bacteriochlorophyllide hydratase (NCBI)	no	0.95
3	Rru_A3227		conserved hypothetical protein, potential methyltransferase (NCBI)	no	0.95
4	Rru_A2979		Chlorophyllide reductase subunit Y (NCBI)	0.84	0.94
5	Rru_A0622		Light-independent protochlorophyllide reductase, B subunit (NCBI)	0.91	0.94
6	Rru_A2980		Chlorophyllide reductase iron protein subunit X (NCBI)	0.80	0.94
7	Rru_A0486		von Willebrand factor, type A (NCBI)	0.80	0.94
8	Rru_A2974		Photosynthetic reaction centre M subunit (NCBI)	0.78	0.93
9	Rru_A0485		Magnesium chelatase ATPase subunit I (NCBI)	0.82	0.93
10	Rru_A3548		Magnesium-protoporphyrin IX monomethyl ester anaerobic oxidative cyclase (NCBI)	no	0.92
11	Rru_A0627		Bacteriochlorophyll/chlorophyll synthetase (NCBI)	0.69	0.92
12	Rru_A0620		Light-independent protochlorophyllide reductase, iron-sulfur ATP-binding protein (NCBI)	0.84	0.91
13	Rru_A0617		Photosynthetic reaction center, H-chain (NCBI)	0.75	0.90
14	Rru_A2978		Chlorophyllide reductase subunit Z (NCBI)	0.80	0.89
15	Rru_A0618		PUCC protein (NCBI)	0.76	0.89
16	Rru_A2525		Peptidase U32 (NCBI)	no	0.89
17	Rru_A2524		Peptidase U32 (NCBI)	no	0.88
18	Rru_A2981		2-desacetyl-2-hydroxyethyl bacteriochlorophyllide (NCBI)	0.69	0.87
19	Rru_A0613		Bacteriochlorophyll 4-vinyl reductase (NCBI)	no	0.86
20	Rru_A2400		Ribulose-bisphosphate carboxylase, form II (NCBI)	no	0.83

Or look for negative cofitness