Do they still have all of the other organelles? Not compared to a standard cell. RBC's must be able to travel through very narrow capillaries in the circulatory system, so they have a substantial reduction in protein "machinery" used for cell division, etc. As for proteins that are still present in the RBC's:. they still retain a cytoskeleton and bilayer composed of proteins, as well as membrane bound transport proteins. The membrane composition itself is unique in that it must be flexible, plastic, and must adhere to other cells. It has 3 layers: the glycocalyx (exterior), lipid bilayer containing membrane bound proteins, and the membrane skeleton. They also still have the enzymes responsible for ATP synthesis via glycolysis as well as the enzymes necessary in the pentose phsphate pathway.
As for relative abundances of proteins, that is a topic requiring a paper publication. This paper here :
describes a quantitative analysis of RBC's using proteomics for identification. They lyse the RBC's, digest them with a number of different enzymes, and use Chromatography and mass spectrometry for quantitative analysis. Apparently they identified 2090 proteins in whole RBC's and quantitatively measured 450 of them. Hemoglobin is obviously the most abundant, and carbonic anhydrase comes in second. Here is a verbatim quote from page 2756:
"Peroxiredoxin-1, -2, and -6 (PRDX1, PRDX12, and PRDX16) occur with similar copy numbers. The next group of highly abundant proteins consists of biliverdin reductase B (BLVRB), which catalyzes reduction of methemoglobin, and catalase (CAT) and superoxide desmutase (SOD1), which protect from toxic effects of oxygen peroxide and radicals, respectively. Bisphosphoglycerate mutase (BPGM), the central enzyme of the Rapoport−Luebering cycle, is present at 1.6 million copies. BPGM converts 1,3-bisphosphoglycerate, which is formed by glycolysis, to 2,3-bisphosphoglycarate (2,3-BPG). The main role of 2,3-BPG is to shift the equilibrium of hemoglobin toward the deoxy state. Housekeeping enzymes glyceraldehydeP dehydrogenase (GAPDH) and deglycase (PARK7)29 are present at 1.4 and 0.7 million copies, respectively. Calcium binder S100A4 is present at about 2 million copies. Another enzyme found to be present at 2−3 million copies was αsynuclein. Notably, it has recently be reported that RBCs as the major source of α-synuclein in blood"