How many proteins are there in the human body?

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How many proteins are there in the human body?

I've been trying to find a number but every site seems to have something different and I'm not sure which one is most reliable and most accurate.

Any help is greatly appreciated :)

2007-09-05 17:12:36 · 3 answers · asked by music123 1 in Science & Mathematics ➔ Biology

3 answers

Recent estimates of the human proteome size are ~500,000 different proteins.

2007-09-05 20:56:49 · answer #1 · answered by gribbling 7 · 0⤊ 0⤋

I am 'nitpicking', but current estimates are about 21,000 to 22,500 genes in the human genome. The most often quoted 'guesses' of total different proteins I have seen range from 90,000 to 120,000+.

2007-09-05 18:29:09 · answer #2 · answered by Doctor J 7 · 0⤊ 0⤋

Well, with 35,000 genes and alternative splicing, probably ~100,000.

2007-09-05 17:42:02 · answer #3 · answered by Pseudo Obscure 6 · 0⤊ 0⤋