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. 2021 Feb 14;260:117797. doi: 10.1016/j.carbpol.2021.117797

Table 2.

Kinetic constants of interactions between SARS-CoV-2 spike protein RBD and immobilized heparin or heparan sulfate.

ka (1/Ms)a kd (1/s)a KD (M)
Heparin 8.09 × 103 ± 151 8.49 × 104 ± 1.66 × 10−5 1.05 × 10−7
Bat lung HS 974 ± 43.1 6.85 × 104 ± 1.76 × 10−5 7.03 × 10−7
Human lung HS 5.71 × 103 ± 174 1.11 × 103 ± 2.20 × 10−5 1.94 × 10−7
a

The standard deviation was from the global fitting (n = 3).