Here are links to the Genbank entries for proteins of interest to the lab:

C1-THF synthase (and related proteins)

Cytoplasmic isozymes
human trifunctional (MTHFD1)	mouse trifunctional (MTHFD1)	rat trifunctional (MTHFD1)	Xenopus laevis (MTHFD1)
S. cerevisiae ADE3	S. cerevisiae monofunctional (MTD1)	S. pombe ADE3	S. pombe MTD1
Drosophila cytoplasmic	fall armyworm cytoplasmic
Mitochondrial isozymes
human C1-THF synthase (MTHFD1L)	mouse C1-THF synthase (MTHFD1L)	Rat C1-THF synthase (MTHFD1L)	Chimp C1-THF synthase (MTHFD1L)
human bifunctional (MTHFD2)	mouse bifunctional (MTHFD2)	opossum C1-THF synthase (MTHFD1L)	human MTHFD2L
S. cerevisiae MIS1	S. pombe MIS1	Drosophila bifunctional	mouse MTHFD2L

Methylenetetrahydrofolate reductase (MTHFR)

yeast MET13	yeast MET12	Arabidopsis-1
Arabidopsis-2	Zea maize	human
mouse	E. coli

Methenyltetrahydrofolate synthetase (MTHFS)

S.cerevisiae	human	rabbit
C. elegans	S. pombe

AICAR Transformylase/IMP Cyclohydrolase

S.c. ADE17	S.c. ADE16	human
chicken	rat	E. coli
Arabidopsis

Methionine Synthase (B12-independent)

S. cerevisiae (MET6)	E. coli (metE)	S. pombe (MET26)
C. albicans (MET6)