OMprotac-degraderspradyumnasagar-open-research-skills#ors-metaResearchcheminformaticsstructural biologymolecular modelingDesigns PROTACs, molecular glues, and bivalent degraders with explicit handling of E3 ligase choice (VHL, CRBN, IAP, MDM2, KEAP1), linker design (length, composition, rigidity),...
OMretrosynthesispradyumnasagar-open-research-skills#ors-metaResearchcomputational chemistrychemoinformaticsmolecular-designPerforms retrosynthetic planning using AiZynthFinder (MCTS, template-based), Chemformer (template-free transformer), ASKCOS, and emerging RetroSynFormer with explicit handling of...
OMscaffold-analysispradyumnasagar-open-research-skills#ors-metaResearchcheminformaticsdrug discoveryQSARAnalyzes chemical libraries by scaffold using Bemis-Murcko scaffolds, generic frameworks, cyclic skeletons, matched molecular pair (MMP) analysis via mmpdb, R-group decomposition,...
OMshape-similaritypradyumnasagar-open-research-skills#ors-metaResearchcheminformaticsdrug discoverymolecular modelingPerforms 3D shape-based similarity searching using ROCS (OpenEye), USRCAT (ultra-fast), Open3DAlign (RDKit), ESPSim (electrostatic), and ShaEP with explicit handling of...
OMsimilarity-searchingpradyumnasagar-open-research-skills#ors-metaResearchcheminformaticsclusteringmolecular-similarityPerforms molecular similarity searching using Tanimoto, Tversky, Dice, and cosine coefficients on bit/count fingerprints with explicit choice rules for symmetric vs asymmetric...
OMsubstructure-searchpradyumnasagar-open-research-skills#ors-metaResearchcheminformaticsrdkitsmarts-patternsSearches molecular libraries for substructure matches using SMARTS patterns with explicit handling of recursive SMARTS, ring membership, aromaticity dialect, vector binding, atom...
OMvirtual-screeningpradyumnasagar-open-research-skills#ors-metaResearchdrug discoveryscientific computingchemoinformaticsPerforms structure-based virtual screening using AutoDock Vina, SMINA, GNINA (CNN scoring), and DiffDock-L hybrid workflows with explicit choice rules across rigid vs flexible...
OMbatch-processingpradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsdata pipelinessequence processingProcess many FASTA/FASTQ/GenBank files in batch — merge, split, convert, summarize, organize — using Biopython 1.83+.
OMbwa-alignmentpradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsgenomicssequence alignmentAlign Illumina short reads to a reference genome with BWA-MEM — including index, MEM algorithm, paired-end, alt-contig handling, and 2026 best practices.
OMbwa-mem2-alignmentpradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsgenomicssequence alignmentUse BWA-MEM2 — the SIMD-accelerated BWA-MEM replacement — for 2-3x speedup on human genome alignment with identical results to BWA-MEM.
OMcodon-usagepradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsgenomicssequence analysisCompute codon usage frequencies, RSCU, CAI, and tRNA adaptation — for gene expression prediction, heterologous expression design, and comparative genomics.
OMcompressed-sequence-filespradyumnasagar-open-research-skills#ors-metaResearchpythonbioinformaticsbiopythonRead and write gzip, bzip2, and BGZF-compressed FASTA/FASTQ using Python stdlib and Biopython — including indexable BGZF.
OMfastq-quality-scorespradyumnasagar-open-research-skills#ors-metaResearchpythonbioinformaticssequence analysisAccess, filter, and trim Phred quality scores in FASTQ reads using Biopython 1.83+ — including per-position profiles and encoding auto-detection.
OMfilter-sequencespradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsgenomicsbiopythonFilter FASTA/FASTQ records by length, identity, regex on headers, GC window, complexity, and custom predicates — streaming with Biopython 1.83+.
OMhisat2-alignmentpradyumnasagar-open-research-skills#ors-metaResearchcommand-linebioinformaticsgenomicsSplice-aware RNA-seq alignment with HISAT2 — fast, memory-efficient, and the default in many bulk RNA-seq pipelines alongside STAR.
OMmotif-searchpradyumnasagar-open-research-skills#ors-metaResearchregexbioinformaticssequence analysisFind patterns, motifs, and binding sites in DNA/RNA/protein sequences — using regex, IUPAC patterns, position weight matrices, and modern motif databases (JASPAR 2024, CIS-BP).
OMpaired-end-fastqpradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsgenomicssequence analysisKeep R1/R2 reads in lockstep — synchronize iteration, filter pairs together, interleave, and deinterleave — using Biopython and the 2026 best practices.
OMpysam-genomicspradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsgenomicsNGS dataProgrammatically read, modify, filter, and write BAM/CRAM/VCF files using pysam 0.22+ — the Python interface to htslib for NGS I/O, variant calling, and custom pipelines.
OMread-write-sequencespradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsfile formatsbiopythonRead and write FASTA, FASTQ, GenBank, EMBL using Biopython SeqIO — including indexed random access, conversion, and 2026 best practices.
OMreverse-complementpradyumnasagar-open-research-skills#ors-metaResearchbioinformaticsgenomicsbiopythonCompute reverse complements, complements, and strand-aware operations on DNA/RNA — including IUPAC ambiguity support, batch processing, and the orientation trap.