list of gene families list of gene families this is a list of gene families or gene complexes, i.e. sets of genes which are related ancestrally and often serve similar biological functions. these gene families typically encode functionally related proteins, and sometimes the term gene families is a shorthand for the sets of proteins that the genes encode. they may or may not be physically adjacent on the same chromosome. regulatory protein gene families 14-3-3 protein family achaete-scute complex (neuroblast formation) fox proteins (forkhead box proteins) families containing homeobox domains dlx gene family hox gene family pou family krüppel-type zinc finger (znf) mads-box gene family notch2nl p300-cbp coactivator family sox gene family immune system proteins immunoglobulin superfamily major histocompatibility complex (mhc) motor proteins dynein kinesin myosin signal transducing proteins g-proteins map kinase olfactory receptor peroxiredoxin receptor tyrosine kinases transporters abc transporters antiporter aquaporins other families atcase/otcase family bacterial potassium transporter dhh phosphatase family expansin gene family fibroblast growth factors (fgf) fibroblast growth factor receptors (fgfr) fh2 protein (formin) gene family fgd (fyve, rhogef and ph domain containing) family heat shock proteins ion channels membrane-spanning 4a peroxin protocadherin gene family roundabout family snare family