Table 2  Comparison of protein sequences SARS-CoV-2 and SARS-CoV by Blastp.
SARS-CoV-2  SARS-CoV
Protein Name  Accession Number  Putative Function/Domain  Accession Number  Query Cover *  Percent Identity
1  nsp2  YP_009725298.1  nonstructural polyprotein pp1a  ABF65834.1  100%  68.34%
2  nsp3  YP_009725299.1  polyprotein orf1a  AFR58698.1  100%  75.82%
3  nsp4  YP_009725300.1  polyprotein 1a  ARO76381.1  100%  80.80%
4  nsp6  YP_009725302.1  nsp6-pp1a/pp1ab (TM3)  NP_828864.1  98%  88.15%
5  nsp7  YP_009725303.1  Chain A, Replicase Polyprotein 1ab, Light Chain  2AHM_A  100%  98.80%
6  nsp8  YP_009725304.1  Chain E, Replicase Polyprotein 1ab, Heavy Chain  2AHM_E  100%  97.47%
7  nsp9  YP_009725305.1  nsp9-pp1a/pp1ab  NP_828867.1  100%  97.35%
8  nsp10  YP_009725306.1  Chain A, Non-structural Protein 10  5C8S_A  100%  97.12%
9  nsp11  YP_009725312.1  nsp11-pp1a  NP_904321.1  100%  84.62%
10  orf1a polyprotein  YP_009725295.1  orf1a polyprotein (pp1a)  NP_828850.1  100%  80.58%
11  orf1ab polyprotein  YP_009724389.1  orf1ab polyprotein (pp1ab)  NP_828849.2  100%  86.26%
12  orf3a protein  YP_009724391.1  hypothetical protein sars3a  NP_828852.2  100%  72.04%
13  orf6 protein  YP_009724394.1  hypothetical protein sars6  NP_828856.1  100%  68.85%
14  orf7a protein  YP_009724395.1  protein 8  ARO76387.1  100%  87.70%
15  orf7b protein  YP_009725296.1  hypothetical protein sars7b  NP_849175.1  95%  85.37%
16  orf8 protein  YP_009724396.1  -  -  -  -
17  orf10 protein  YP_009725255.1  -  -  -  -
18  2’-O-ribose methyltransferase  YP_009725311.1  nsp16-pp1ab (2’-o-MT)  NP_828873.2  99%  93.60%
19  3C-like proteinase  YP_009725301.1  polyprotein 1a  ARO76381.1  100%  96.08%
20  3’-to-5’ exonuclease  YP_009725309.1  nsp14-pp1ab (nuclease ExoN homolog)  NP_828871.1  100%  95.07%
21  endoRNAse  YP_009725310.1  nsp15-pp1ab (endoRNAse)  NP_828872.1  100%  88.73%
22  envelope protein  YP_009724392.1  E protein  APO40581.1  100%  94.74%
23  helicase  YP_009725308.1  nsp13-pp1ab (ZD, NTPase/HEL)  NP_828870.1  100%  99.83%
24  leader protein  YP_009725297.1  nsp1-pp1a/pp1ab  NP_828860.2  100%  84.44%
25  membrane glycoprotein  YP_009724393.1  matrix protein  NP_828855.1  100%  90.54%
26  nucleocapsid phosphoprotein  YP_009724397.2  nucleocapsid protein  ARO76389.1  100%  90.52%
27  RNA-dependent RNA polymerase  YP_009725307.1  nsp12-pp1ab (RdRp)  NP_828869.1  100%  96.35%
28  surface glycoprotein  YP_009724390.1  spike glycoprotein  ABD72985.1  100%  76.42%
“-” represents no homologous protein. Query cover represents the percentage of the protein sequences that are participating in the comparison. Percent identity indicates the homology.