small lettering; in the figure legend: Figure 1:. (a) <subfigure legend>. (b) ...; in the figure itself: (a), preferably in the left upper corner of the subfigure
GenBank
GENBANK, Genbank
self-notation
kb
kB, KB, Kb
kilobases (103 bp)
kB
KB, Kb, kb
kilobit (103 bit)
KEGG
Kegg
style of provider
Mb
MB
megabases (106 bp)
MB
MB
megabit (106 bit)
ml
mL
mililiter
nt
Nt
nucleotide(s)
(numbers:) 849,123,987
OR: 1234
849 123 987
use the comma separator consistently throughout the ms for figures with >4 digits