Data Statistics

Number of B-cell and T-cell epitopes against HCoVs

Currently, our database contains 66 210 B-cell epitopes, of which 1061 are conformational, and 3209 T-cell epitopes, of which 1838 are HLA class I epitopes and 1,101 are HLA class II epitopes. Statistical analysis shows that SARS-CoV and MERS-CoV possess the largest number of B-cell epitopes, exceeding 15,000, followed by SARS-CoV-2 and HCoV-OC43, surpassing 9,000, while others hover around 4,000. Notably, SARS-CoV-2 has the most conformational epitopes, totaling 971. Moreover, SARS-CoV-2 has the largest count of T-cell epitopes, with 3,037, mainly located on the Spike, ORF1ab, and N proteins. In contrast, other HCoVs display a significantly limited number of T cell epitopes.

Number of antibodies against HCoVs

CovEpiAb contains 12 613 antibodies against HCoVs. Within this collection, 988 structures are available for 589 antibodies, and 6605 binding affinity records and 62962 neutralizing activity records were investigated. The binding and neutralization profiles of these antibodies against HCoVs and SARS-CoV-2 variants are listed here.

V and J gene usage of antibodies

We conducted an analysis on antibody gene usage and employed Sankey plots to illustrate the utilization patterns of the top 50 most frequent V and J gene pairs in both antibody heavy and light chains. The heavy chain V and J human genes most commonly used are IGKV3-30, IGHV1-69, IGHJ4, IGHJ6, and the light chain V and J human genes most commonly used are IGKV1-39, IGKV3-20, IGKJ1 and IGLJ3.

-log fold change of neutralizing activity of therapeutics

We classify new coronavirus variants according to pango lineage and prevalence, including 64 currently circulating or previously circulating variants. The database includes the virological characteristics of these variants, as well as in vitro activity data of 108 therapeutics against the variants, including 55 vaccines, 34 neutralizing antibodies, and 22 plasma samples from recovered patients, with a total of 10,158 in vitro activity records. Analytical results indicate that recently identified Omicron subvariants, such as EG.5 and FL.1.5.1, exhibit greater reductions in in vitro activity against various therapeutic agents compared with other variants. The most significant reduction was observed in neutralizing antibodies.

Spike mutations resistant to therapeutic antibodies with emergency use authorization (EUA) or in advanced clinical trials

The mAb resistance mutations were defined as Spike mutations met one or more of the following criteria: (1) having a median ≥5 fold reduction in susceptibility to a clinical stage mAb compared with wildtype according to (CoV-RDB) and/or (2) having >0.1 average antibody escape from aggregated deep mutational scanning data (Starr et.al, 2021).

ProteinMutation
SpikeP337H
SpikeP337L
SpikeP337R
SpikeP337S
SpikeP337T
SpikeE340A
SpikeE340D
SpikeE340G
SpikeE340K
SpikeE340Q
SpikeE340V
SpikeT345P
SpikeR346G
SpikeR346I
SpikeR346K
SpikeR346S
SpikeR346T
SpikeK356Q
SpikeK356T
SpikeS371F
SpikeS371L
SpikeD405E
SpikeD405N
SpikeE406D
SpikeK417E
SpikeK417H
SpikeK417I
SpikeK417M
SpikeK417N
SpikeK417R
SpikeK417S
SpikeK417T
SpikeD420A
SpikeD420N
SpikeN439K
SpikeN440D
SpikeN440E
SpikeN440I
SpikeN440K
SpikeN440R
SpikeN440T
SpikeN440Y
SpikeS443Y
SpikeK444E
SpikeK444F
SpikeK444I
SpikeK444L
SpikeK444M
SpikeK444N
SpikeK444R
SpikeK444T
SpikeV445A
SpikeV445D
SpikeV445F
SpikeV445I
SpikeV445L
SpikeG446A
SpikeG446D
SpikeG446I
SpikeG446N
SpikeG446R
SpikeG446S
SpikeG446T
SpikeG446V
SpikeG447C
SpikeG447D
SpikeG447F
SpikeG447S
SpikeG447V
SpikeN448D
SpikeN448K
SpikeN448T
SpikeN448Y
SpikeY449D
SpikeN450D
SpikeN450K
SpikeL452M
SpikeL452Q
SpikeL452R
SpikeL452W
SpikeY453F
SpikeY453H
SpikeL455F
SpikeL455M
SpikeL455S
SpikeL455W
SpikeF456C
SpikeF456L
SpikeF456V
SpikeS459P
SpikeN460D
SpikeN460H
SpikeN460I
SpikeN460K
SpikeN460S
SpikeN460T
SpikeN460Y
SpikeA475D
SpikeA475V
SpikeG476D
SpikeG476R
SpikeG476T
SpikeV483A
SpikeE484A
SpikeE484D
SpikeE484G
SpikeE484K
SpikeE484P
SpikeE484Q
SpikeE484R
SpikeE484S
SpikeE484T
SpikeE484V
SpikeG485D
SpikeG485R
SpikeF486D
SpikeF486I
SpikeF486L
SpikeF486N
SpikeF486P
SpikeF486S
SpikeF486T
SpikeF486V
SpikeN487D
SpikeN487H
SpikeN487S
SpikeY489H
SpikeY489W
SpikeF490G
SpikeF490I
SpikeF490L
SpikeF490R
SpikeF490S
SpikeF490V
SpikeF490Y
SpikeQ493D
SpikeQ493E
SpikeQ493H
SpikeQ493K
SpikeQ493L
SpikeQ493R
SpikeQ493V
SpikeS494P
SpikeS494R
SpikeG496S
SpikeQ498H
SpikeP499H
SpikeP499R
SpikeP499S
SpikeP499T
SpikeN501T
SpikeN501Y
SpikeG504C
SpikeG504D
SpikeG504I
SpikeG504L
SpikeG504N
SpikeG504R
SpikeG504V
SpikeP507A
SpikeN856K
SpikeN969K
SpikeE990A
SpikeT1009I

Antibody synonyms

AntibodySynonyms
47D11ABBV-47D11
AdintrevimabADG20, ADG-2
ADM03820COV2-2381
AmubarvimabBRII-196, P2C-1F11
Amubarvimab+RomlusevimabBRII-196+BRII-198
BamlanivimabLY-CoV555, LY3819253
Bamlanivimab+EtesevimabLY-CoV555+LY-CoV016
BebtelovimabLY-CoV1404, LY3853113
C135BMS-986414, C135-LS
C144BMS-986413, C144-LS
CasirivimabREGN10933
CilgavimabAZD1061, COV2-2130
COR-101STE90-C11, DZIF-10c
DXP-593BGB-DXP593
DXP-604BGB-DXP604, BD-604
EtesevimabCB6, Shi-CB6, JS016, LY-CoV016, LY3832479
EvusheldAZD7442, AZD8895+AZD1061, COV2-2196+COV2-2130
ImdevimabREGN10987
RegdanvimabCT-P59
RomlusevimabBRII-198, P2B-1G5
RonapreveREGEN-COV, REGN10933+REGN10987, CASIRIVIMAB AND IMDEVIMAB, REGEN-COV2
SAB-185CSL-451
SotrovimabVIR-7831, GSK4182136, Xevudy
TixagevimabAZD8895, COV2-2196
VIR-7832GSK-4182137