ProtParamCompute various physical and chemical parameters for a given protein sequence. The computed parameters include the molecular weight, theoretical pI (isoelectric point), amino acid composition, atomic composition, extinction coefficient, estimated half-life, instability index, aliphatic index and grand average of hydropathicity (GRAVY).https://web.expasy.org/protparamprotparambiotools:protparamWeb applicationhttp://edamontology.org/topic_0154Small moleculeshttp://edamontology.org/topic_0157Sequence composition, complexity and repeatshttp://edamontology.org/topic_0078Proteinshttp://edamontology.org/topic_3307Computational biologyhttp://edamontology.org/topic_0121Proteomicshttp://edamontology.org/topic_0080Sequence analysishttp://edamontology.org/topic_1775Function analysisLinuxWindowsMacProteomicshttp://edamontology.org/operation_3767Protein identificationhttp://edamontology.org/operation_2479Protein sequence analysishttp://edamontology.org/operation_0236Sequence composition calculationhttp://edamontology.org/operation_0405Protein hydrophobic region calculationhttp://edamontology.org/operation_0406Protein aliphatic index calculationhttp://edamontology.org/operation_0399Protein extinction coefficient calculationhttp://edamontology.org/operation_0398Protein molecular weight calculationhttps://web.expasy.org/protparam/protparam-doc.htmlGeneral10.1385/1-59259-584-7:53110027275SIB Swiss Institute of BioinformaticsInstituteProtParam Contact Formhttps://web.expasy.org/contactPersonPrimary contact