多肽功能预测工具 (PepClassifier)

多肽功能预测工具(PepClassifier):输入一条或多条多肽序列,一次给出 22 种功能的二分类预测(每项含概率、判定阈值与阳/阴性),可用于多肽药物的活性初筛与安全性评估。

覆盖的功能按应用方向分为 6 组(共 22 项):活性 — 抗菌(AMP):抗菌、抗细菌、抗真菌、抗寄生虫、抗病毒;活性 — 抗肿瘤:抗癌、肿瘤 T 细胞抗原(ttca);活性 — 代谢调节:ACE 抑制、DPP-IV 抑制、抗糖尿病;活性 — 其他:抗衰老、抗炎、抗氧化、神经肽、群体感应;ADME 成药性:抗污(nonfouling)、细胞穿透(cpp)、血脑屏障穿透(bbp);安全性(Tox):过敏原性、溶血性、神经毒性、毒性。

模型基于 PepBenchData-50 与官方 hybrid 划分(8:1:1,5 个 seed)训练,判定阈值在验证集上调优。

适用边界:仅覆盖由标准氨基酸组成的线性多肽(不处理非天然肽 / SMILES 输入),也不预测 MIC、HC50、PAMPA 等连续值终点;序列长度建议 ≤ 50 aa。

1. 多肽序列(支持10条 FASTA):

已解析序列数: 0,总残基数: 0



模型性能指标

PepBench 22-task Summary (hybrid split, 5 seeds, mean±std)
============================================================================
ace_inhibitory       MCC=0.4915±0.0383  AUC=0.8334±0.0162  THR=0.5300±0.2308
allergen             MCC=0.6501±0.0497  AUC=0.9008±0.0163  THR=0.3300±0.1255
antiaging            MCC=0.1631±0.1172  AUC=0.5890±0.0786  THR=0.7900±0.0894
antibacterial        MCC=0.6019±0.0206  AUC=0.9232±0.0029  THR=0.6100±0.0548
anticancer           MCC=0.6240±0.0173  AUC=0.9205±0.0067  THR=0.4900±0.0962
antidiabetic         MCC=0.3467±0.0857  AUC=0.7741±0.0400  THR=0.3900±0.2074
antifungal           MCC=0.5916±0.0420  AUC=0.9097±0.0111  THR=0.5100±0.0652
antiinflamatory      MCC=0.4383±0.0528  AUC=0.7957±0.0226  THR=0.3900±0.1294
antimicrobial        MCC=0.6176±0.0158  AUC=0.9201±0.0045  THR=0.6000±0.0354
antioxidant          MCC=0.3439±0.0771  AUC=0.7218±0.0370  THR=0.6400±0.1917
antiparasitic        MCC=0.5835±0.0510  AUC=0.9080±0.0144  THR=0.6800±0.1304
antiviral            MCC=0.5594±0.0313  AUC=0.8835±0.0081  THR=0.5800±0.1255
bbp                  MCC=0.3653±0.0774  AUC=0.6885±0.0770  THR=0.7400±0.1140
cpp                  MCC=0.4910±0.1183  AUC=0.8562±0.0370  THR=0.6100±0.2275
dppiv_inhibitors     MCC=0.5339±0.0351  AUC=0.8366±0.0212  THR=0.5400±0.1710
hemolytic            MCC=0.5412±0.0293  AUC=0.8596±0.0158  THR=0.5600±0.2815
neuropeptide         MCC=0.5505±0.0358  AUC=0.8705±0.0122  THR=0.5300±0.1304
neurotoxin           MCC=0.3394±0.0829  AUC=0.7251±0.0412  THR=0.5900±0.1673
nonfouling           MCC=0.3919±0.0469  AUC=0.7721±0.0172  THR=0.4100±0.0962
quorum_sensing       MCC=0.5655±0.1136  AUC=0.8483±0.0405  THR=0.7000±0.1275
toxicity             MCC=0.3688±0.0695  AUC=0.7486±0.0221  THR=0.4900±0.1387
ttca                 MCC=0.5169±0.1156  AUC=0.8591±0.0497  THR=0.5600±0.1673
----------------------------------------------------------------------------
  macro_avg_MCC          0.4853 ± 0.0092
  macro_avg_AUC          0.8247 ± 0.0067
  macro_avg_THR          0.5577 ± 0.0213
============================================================================
说明:hybrid split 为 k-mer split + mmseq split 的组合划分;THR 为验证集上调优的判定阈值(5 seed 均值)。
        

参考文献

Zhang J, Wang R, Zhou K, et al. PepBenchmark: a standardized benchmark for peptide machine learning. Presented at: International Conference on Learning Representations; 2026. https://openreview.net/forum?id=NskQgtSdll

最后一次更新时间: 2026-09-21