Molecular Properties Flashcards
1
Q
Water molecule diameter
A
0.3 nm
2
Q
Average protein diameter
A
5 nm
3
Q
Membrane thickness
A
4 nm
4
Q
Prokaryotic ribosome size
A
20 nm
5
Q
Eukaryotic ribosome size
A
25 nm
6
Q
Median protein length in human
A
430 amino acids
7
Q
Average mass of an amino acid
A
110 Da
8
Q
Ratio of mRNA/protein (molecular weight)
A
9:1
9
Q
Protein vs. RNA vs. DNA
(in eukaryotes, total dry weight)
A
55% vs. 20% vs. 3%
10
Q
Bp in human genome
A
3.2 Gbp
11
Q
Makeup of human genome
(coding: introns: LINEs and SINEs)
A
1.5% : 26% : 33%
12
Q
Typical current across ion channel
A
A few pA
13
Q
Density of DNA/RNA
A
2 kg/L
14
Q
Density of proteins
A
1.3 kg/L
15
Q
Density of membrane
A
1.05 kg/L
