SMA Research Platform

Evidence graph for Spinal Muscular Atrophy

Biology-first target discovery
Christian Fischer / Bryzant Labs

A21 · STRUCTURES & SIMULATIONS · 12 SEPTEMBER 2026

PERP designs: structures and membrane simulations

Five exact binder designs were examined with full-length human PERP. This dataset provides original and oriented structures, short POPC-membrane simulation outputs, exact sequences and a PERP-only structural comparison.

Study findings

The five candidates are H1a_38_s7, H1c_25_s4, H1c_25_s5, H2b_9_s2 and H2c_11_s1. Each uses human PERP, UniProt Q96FX8, residues 1–193. Exact binder and target sequences are available as structured identities and FASTA.

The coordinate dataset contains five original pre-orientation structures and six oriented baseline structures, including PERP alone. Four binder complexes and the PERP-only comparison have complete 520 ps POPC coordinate/metrics pairs. Final PDBs retain the POPC, water and ion context.

For H2b_9_s2, the available record documents a 510 ps checkpoint. No final 520 ps coordinate or complete metrics file is included. The distinction is preserved in the table and simulation summary.

Separate aqueous-source simulations have 1,500 saved observations over 29.98 ns. Their full trajectories are not part of this dataset. The simulation summary preserves the recorded observation interval and duration without implying that these trajectories can be reproduced from the files provided here.

Interpretation and reproducibility

The POPC files are short computational coordinate and metric observations. They establish neither experimental binding, affinity, membrane convergence, accessibility, function nor an SMA-related effect.

PERP alone is a structural comparison, not an experimentally established nonbinding control.

The bundle is not a full molecular-dynamics reproduction. Full trajectories, checkpoints and complete simulation-system states are not included.

Dataset download

Structures and simulation data

Exact protein sequences

H1a_38_s7 · 85 residues

AEAAEAAELEAHIEELARRVLEEVRARYPDYPGAESVARDTRDAMRAAAAEARAAGAPLEEIKAAIEAAARAQLARWLALLDARR

H1c_25_s4 · 84 residues

SALAALDAELAERLAAAERRRAELLARAAKLAAEAAAAAAAGDAARAAALRAEVAAVRAEAETAVGAELAAIRAEYAARRAALE

H1c_25_s5 · 84 residues

SALAALAAARAARLAAVRAAEAAALAAAAATAAAAAAAAAAGDAAAAAALAAARAATLAAAAAAGGAARAAVEAATAAALAALA

H2b_9_s2 · 87 residues

REKEREALLAAALAEAREVGEAILADPENAEALLAAAEAEVEAARARAEALAAEDPERAADELAAVDVRAAVLRETAILLAEKRAAA

H2c_11_s1 · 81 residues

AEAATAAEVAALEAAAAAVRAERDALTAATEAAMAKASPEEAAKLKAELDKRTAALAAEAARLEAEAAAKRAAAAEAAAAA

Human PERP · Q96FX8 · residues 1–193

MIRCGLACERCRWILPLLLLSAIAFDIIALAGRGWLQSSDHGQTSSLWWKCSQEGGGSGSYEEGCQSLMEYAWGRAAAAMLFCGFIILVICFILSFFALCGPQMLVFLRVIGGLLALAAVFQIISLVIYPVKYTQTFTLHANPAVTYIYNWAYGFGWAATIILIGCAFFFCCLPNYEDDLLGNAKPRYFYTSA

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