
Lambert paper x-ref homologs of known human TFs
~300 with known TF binding motifs

DETF:       196 known TF binding sites.  ChIP, selex.  Lambert suppl.
Refined:    High value based on temporal expression patterns & known
	    relationship to axon growth/regen

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https://ftp.ncbi.nlm.nih.gov/gene/DATA/GENE_INFO/

Files here look convenient, but the ortholog matchings are so strict as
to be useless.  E.g. sox11a has no orthologs, isl2b has only isl2b as
orthologs.  For our purposes, we want to consider sox11 and isl2 as
equivalent.

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https://www.biostars.org/p/450410/
https://www.ensembl.org/biomart/martview/

Choose database:    Ensembl Genes
Choose dataset:     Zebrafish genes
Clear all attributes under "Gene"
Select desired attributes under Homologues
    For add-ortho, need Homologs/GENE/Gene name, Homologs/Species/Gene name
    Site says up to 6 orthologs, but consistently fails for 5
    Do a few at a time and paste together (non-trivial)
    Choosing "Compressed web file (notify by email)" helped but the
    link sent did not work 2 hours after receipt.  It did work the
    following morning.

