• Protein (biochemistry) tại Encyclopædia Britannica (tiếng Anh)
• Protein tại Từ điển bách khoa Việt Nam

Cơ sở dữ liệu và các dự án

• The Protein Naming Utility
• Human Protein Atlas
• NCBI Entrez Protein database
• NCBI Protein Structure database
• Human Protein Reference Database
• Human Proteinpedia
• Folding@Home (Stanford University)
• Comparative Toxicogenomics Database curates protein–chemical interactions, as well as gene/protein–disease relationships and chemical-disease relationships.
• Bioinformatic Harvester A Meta search engine (29 databases) for gene and protein information.
• Protein Databank in Europe (see also PDBeQuips, short articles and tutorials on interesting PDB structures)
• Research Collaboratory for Structural Bioinformatics (see also Molecule of the Month, presenting short accounts on selected proteins from the PDB)
• Proteopedia – Life in 3D: rotatable, zoomable 3D model with wiki annotations for every known protein molecular structure.
• UniProt the Universal Protein Resource
• neXtProt – Exploring the universe of human proteins: human-centric protein knowledge resource
• Multi-Omics Profiling Expression Database: MOPED human and model organism protein/gene knowledge and expression data

Các website giáo dục

• "An Introduction to Proteins" from HOPES (Huntington's Disease Outreach Project for Education at Stanford)
• Proteins: Biogenesis to Degradation – The Virtual Library of Biochemistry and Cell Biology
• Alphabet of Protein Structures