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About Entrez

Entrez Structure
Help | FAQ

Structure Research
The NCBI Structure group

MMDB
About Entrez's structure database

CDD
Conserved Domain Database

PDBeast
Taxonomy in MMDB

Cn3D
3D-structure viewer

VAST
Structure comparisons

VAST Search
Submit structure database searches

Research
Structure Group research projects

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To search by keyword, like "aconitase" To search by protein sequence To search by nucleotide sequence

New structure viewer About the Database

Cn3D is NCBI's 3D structure viewer. As a helper application for your Web browser, it allows you to interactively view 3D structures, sequences, and sequence alignments. Cn3D is available for Windows, MacOS, and Unix. More... The Molecular Modeling Database (MMDB) contains 3D macromolecular structures, including proteins and polynucleotides. MMDB contains over 40,000 structures and is linked to the rest of the NCBI databases, including sequences, bibliographic citations, taxonomic classifications, and sequence and structure neighbors.

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