Dr Joshua Box

So I'm trying to get a more current answer to these questions because the only papers I can find are from over a decade ago and this field is moving too fast to take them at face value. So how many protein coding genes are there in the human genome? (HGP) How many of these do we have experimental evidence for? (UniProt?) and how many of these do we have an experimental structure for? (PDB?) Help and links would be greatly appreciated