Granted Patent B2

US 12,529,164 · App. 17/856,679 · Granted Jan 20, 2026

Inventors: Maximiliano Vasquez (Lebanon, NH); Michael Feldhaus (Lebanon, NH); Tillman U. Gerngross (Lebanon, NH); K. Dane Wittrup (Lebanon, NH)

Assignee: Adimab, LLC

C40B40/08C07K16/00C07K16/005C12N15/1093C07K2317/565C07K2317/567C40B50/06

Abstract

Claims (14)

1 . A method of isolating one or more host cells from a population of host cells, the population of host cells comprising synthetic polynucleotides that encode an antibody heavy chain or alternative scaffold containing at least about 10 6 unique antibody CDRH3 amino acid sequences, the method comprising:

(i) expressing a polypeptide comprising a CDRH3 sequence in one or more host cells, wherein the CDRH3 sequence comprises:

(a) an N1 amino acid sequence of 0 to about 3 amino acids, wherein each amino acid of the N1 amino acid sequence is among the 12 most frequently occurring amino acids at the corresponding position in N1 amino acid sequences of CDRH3 amino acid sequences that are functionally expressed by B cells,

(b) a non-human CDRH3 DH amino acid sequence, N- and C-terminal truncations thereof, or a sequence of at least about 80% identity to any of them,

(c) an N2 amino acid sequence of 0 to about 3 amino acids, wherein each amino acid of the N2 amino acid sequence is among the 12 most frequently occurring amino acids at the corresponding position in N2 amino acid sequences of CDRH3 amino acid sequences that are functionally expressed by B cells, and

(d) a human CDRH3 H3-JH amino acid sequence, N-terminal truncations thereof, or a sequence of at least about 80% identity to any of them;

(ii) contacting the host cells with one or more antigens; and

(iii) isolating one or more host cells having antibodies that bind to the one or more antigens.

2 . The method of claim 1 , wherein the non-human CDRH3 DH amino acid sequence is a sequence from a vertebrate species.

3 . The method of claim 2 , wherein the vertebrate species is selected from the group consisting of Mus musculus, Camelus sp., Llama sp., Camelidae sp., Raja sp., Ginglymostoma sp., Carcharhinus sp., Heterodontus sp., Hydrolagus sp., Ictalurus sp., Gallus sp., Bos sp., Marmaronetta sp., Aythya sp., Netta sp., Equus sp., Pentalagus sp., Bunolagus sp., Nesolagus sp., Romerolagus sp., Brachylagus sp., Sylvilagus sp., Oryctolagus sp., Poelagus sp., Ovis sp., Sus sp., Gadus sp., Salmo sp., Oncorhynchus sp., Macaca sp., Rattus sp., Pan sp., Hexanchus sp., Heptranchias sp., Notorynchus sp., Chlamydoselachus sp., Heterodontus sp., Pristiophorus sp., Pliotrema sp., Squatina sp., Carcharia sp., Mitsukurina sp., Lamma sp., Isurus sp., Carcharodon sp., Cetorhinus sp., Alopias sp., Nebrius sp., Stegostoma sp., Orectolobus sp., Eucrossorhinus sp., Sutorectus sp., Chiloscyllium sp., Hemiscyllium sp., Brachaelurus sp., Heteroscyllium sp., Cirrhoscyllium sp., Parascyllium sp., Rhincodon sp., Apristurus sp., Atelomycterus sp., Cephaloscyllium sp., Cephalurus sp., Dichichthys sp., Galeus sp., Halaelurus sp., Haploblepharus sp., Parmaturus sp., Pentanchus sp., Poroderna sp., Schroederichthys sp., Scyliorhinus sp., Pseudotriakis sp., Scylliogaleus sp., Furgaleus sp., Hemitriakis sp., Mustelus sp., Triakis sp., Iago sp., Galeorhinus sp., Hypogaleus sp., Chaenogaleus sp., Hemigaleus sp., Paragaleus sp., Galeocerdo sp., Prionace sp., Sciolodon sp., Loxodon sp., Rhizoprionodon sp., Aprionodon sp., Negaprion sp., Hypoprion sp., Carcharhinus sp., Isogomphodon sp., Triaenodon sp., Sphyrna sp., Echinorhinus sp., Oxynotus sp., Squalus sp., Centroscyllium sp., Etmopterus sp., Centrophorus sp., Cirrhigaleus sp., Deania sp., Centroscymnus sp., Scymnodon sp., Dalatias sp., Euprotomicrus sp., Isistius sp., Squaliolus sp., Heteroscymnoides sp., Somniosus sp., and Megachasma sp.

4 . The method of claim 1 , wherein the one or more host cells are yeast cells.

5 . The method of claim 4 , wherein the yeast cells are S. cerevisiae cells.

6 . The method of claim 1 , wherein the N1 amino acid sequence comprises G, P, R, A, S, L, T, V, GG, GP, GR, GA, GS, GL, GT, GV, PG, RG, AG, SG, LG, TG, VG, PP, PR, PA, PS, PL, PT, PV, RP, AP, SP, LP, TP, VP, GGG, GPG, GRG, GAG, GSG, GLG, GTG, GVG, PGG, RGG, AGG, SGG, LGG, TGG, VGG, GGP, GGR, GGA, GGS, GGL, GGT, GGV, D, E, F, H, I, K, M, Q, W, Y, AR, AS, AT, AY, DL, DT, EA, EK, FH, FS, HL, HW, IS, KV, LD, LE, LR, LS, LT, NR, NT, QE, QL, QT, RA, RD, RE, RF, RH, RL, RR, RS, RV, SA, SD, SE, SF, SI, SK, SL, SQ, SR, SS, ST, SV, TA, TR, TS, TT, TW, VD, VS, WS, YS, AAE, AYH, DTL, EKR, ISR, NTP, PKS, PRP, PTA, PTQ, REL, RPL, SAA, SAL, SGL, SSE, TGL, or WGT.

7 . The method of claim 1 , wherein the N2 amino acid sequence comprises G, P, R, A, S, L, T, V, GG, GP, GR, GA, GS, GL, GT, GV, PG, RG, AG, SG, LG, TG, VG, PP, PR, PA, PS, PL, PT, PV, RP, AP, SP, LP, TP, VP, IG, KG, GW, FP, EG, GGG, GPG, GRG, GAG, GSG, GLG, GTG, GVG, PGG, RGG, AGG, SGG, LGG, TGG, VGG, GGP, GGR, GGA, GGS, GGL, GGT, GGV, D, E, F, H, I, K, M, Q, W, Y, AR, AS, AT, AY, DL, DT, EA, EK, FH, FS, HL, HW, IS, KV, LD, LE, LR, LS, LT, NR, NT, QE, QL, QT, RA, RD, RE, RF, RH, RL, RR, RS, RV, SA, SD, SE, SF, SI, SK, SL, SQ, SR, SS, ST, SV, TA, TR, TS, TT, TW, VD, VS, WS, YS, AAE, AYH, DTL, EKR, ISR, NTP, PKS, PRP, PTA, PTQ, REL, RPL, SAA, SAL, SGL, SSE, TGL, or WGT.

Assignments (2)

Continuity (8)

References Cited (400)