重组抗原是感染性疾病研究中的关键试剂，广泛应用于治疗性抗体和疫苗开发。义翘神州自主开发了世界上最大的重组病毒抗原库ProVirTM，其特点是拥有冠状病毒目录、全面的流感抗原库以及其他许多难以找到的病毒蛋白，如寨卡病毒、呼吸道合胞病毒、埃博拉病毒和巨细胞病毒。ProVirTM病毒抗原库包括来自90种病毒类型/亚型和350种毒株的1000多种抗原，已在全球范围内广泛用于传染病研究、治疗性抗体评估、免疫诊断分析和疫苗开发。
重组新冠病毒突变体
在印度首次发现的B.1.1.7突变体、P1突变体、B.1.351突变体和最近的B.1.617突变体因其流行率高而特别令人关切。义翘神州开发了一系列重组RBD/S蛋白和核衣壳蛋白突变体，可用于评估抗体和疫苗的效力。
Kappa | B.1.617.1；Delta | B.1.617.2；B.1.617.3
| 毒株 | 货号 | 抗原 | 突变位点 | 标签 |
| B.1.617 | 40588-V07E16 | N | D377Y | His |
| B.1.617 | 40588-V07E20 | N | R203M, D377Y | His |
| B.1.617.2 | 40588-V07E29 | N | D63G, R203M, D377Y | His |
| B.1.617.3 | 40588-V07E30 | N | P67S, R203M, D377Y | His |
| B.1.617 | 40591-V08H19 | S1 | D614G, E154K, E484Q, L452R, P681R | His |
| B.1.617 | 40589-V08B12 | S1+S2 ECD | D614G, E154K, E484Q, E1072K, K1073R, L452R, P681R | His |
| B.1.617 | 40592-V08H28 | RBD | L452R | His |
| B.1.617 | 40592-V08H81 | RBD | E484Q | His |
| B.1.617/B.1.617.1/b.1.617.3 | 40592-V08H88 | RBD | L452R，E484Q | His |
| B.1.617/B.1.617.1/b.1.617.3 | 40592-V02H2 | RBD | L452R，E484Q | Fc |
| B.1.617.2 | 40592-V08H90 | RBD | L452R, T478K | His |
| B.1.617.2 | 40592-V08H91 | RBD | T478K | His |
ProVirTM病毒库包含250多种流感病毒株的630+ HA、NA和ME重组抗原，包括疫苗株和大流行株。义翘神州提供近年来（2015-2022年）世卫组织推荐的所有疫苗株的重组抗原。
2021-2022流感疫苗株相关重组蛋白产品
| A/Victoria/2570/2019 (H1N1) Recommended for Egg-based (quadrivalent,trivalent) Vaccine HA: 40787-V08H, 40787-V08H1 NA: 40785-V08B NP: 40774-V08B |
A/Wisconsin/588/2019 (H1N1) Recommended for Cell- or recombinant-based (quadrivalent, trivalent) Vaccine HA: 40787-V08H, 40787-V08H1 NA: 40785-V08B NP: 40774-V08B |
| B/Washington/02/2019 Recommended for Egg-based, Cell- or recombinant-based (quadrivalent, trivalent) Vaccine HA: 40722-V08H NA: 40790-V08B NP: 40755-V08B |
B/Phuket/3073/2013 Recommended for Egg-based, Cell- or recombinant-based (quadrivalent) Vaccine HA: 40498-V08B NA: 40502-V07B NP: 40500-V08B |
| A/Cambodia/E0826360/2020 (H3N2) Recommended for Egg-based, Cell- or recombinant-based (quadrivalent, trivalent) Vaccine HA: 40789-V08H, 40789-V08H1 NA: 40784-V08B NP: 40778-V08B (Under Development) |
更多传染性病毒的重组抗原
ProVirTM病毒库提供多种传染病相关病毒的重组抗原，从埃博拉病毒（Ebola）、寨卡病毒（Zika）到普通病毒，如呼吸道合胞病毒（RSV）、人乳头状瘤病毒（HPV）和艾滋病毒（HIV）。它还有一些罕见的病毒类型，如裂谷热和印第安纳水泡性口炎病毒。
呼吸道疾病病毒
| CMV | EV-D68 | HAdV-B | HAdV-E |
| HPIV-3 | HPIV-4 | HMPV-A | HMPV-B |
| RSV | EBV | HCoV-229E | HCoV-HKU1 |
| HCoV-NL63 | HCoV-OC43 | MERS-CoV | SARS-CoV |
手足口病病毒
| EV-71 | CV |
血源性疾病病毒
| HIV | HBV | HCV |
热带和媒介传播疾病
| DENV | CHIKV | WNV | ZIKV | RVFV |
更多疾病病毒
| EBOV | HTNV | HEV | VSIV |
| PCV2 | SIV | CyCMV | DcCoV |