Proteins
![](/congress115th/20190109011557im_/https://www.ncbi.nlm.nih.gov/home/catimages/proteins2.png)
NCBI's Protein resources include protein sequences and structures and related comparison and visualization tools, as well as databases and tools to predict and analyze functional domains.
How to
Protein Sequences
- Protein
- protein sequence repository
- BLASTp
- protein sequence similarity search tool
- cobalt
- protein multiple alignment tool
- Protein Clusters
- sequence similarity-based protein clusters
Functional Domains
- Conserved Domains
- conserved protein functional domain repository
- CD-Search
- sequence-based domain search tool
- cdart
- modular protein domain architecture tool
- CD-Tree
- conserved domain analysis program
Three-dimensional Structures
- Structure
- three dimensional macromolecular structures
- Cn3D
- downloadable 3D structure viewer
- VAST+
- macromolecular structural similarity service
- VAST Search
- finds 3D structures similar to an input PDB file
Supporting Resources
- Taxonomy
- taxonomic classification and nomenclature catalog
- GenBank
- primary nucleotide sequence repository
- RefSeq
- curated, non-redundant biological sequence set
- BioProject
- catalog of high-throughput genome-wide studies
- BioSample
- sample repository for the BioProjects database
Additional Tools
- ProSplign
- aligns protein sequences to genomes
- Genome ProtMap
- maps microbial protein coding regions to genomes
- iCn3D
- displays interactive 3D structures in a web browser