RCSB PDB Sequence Coordinates API

GraphQL service providing sequence-level alignments between structural databases and external sequence resources. Exposes two core queries — alignment and annotations — enabling callers to map PDB chain positions to UniProt, NCBI RefSeq (protein and genomic), CATH, SCOPe, and Computed Structure Models (CSMs). Replaces the legacy 1D Coordinates Service.

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API entry from apis.yml

apis.yml Raw ↑
aid: pdb:rcsb-pdb-sequence-coordinates-api
name: RCSB PDB Sequence Coordinates API
description: GraphQL service providing sequence-level alignments between structural databases and external
  sequence resources. Exposes two core queries — alignment and annotations — enabling callers to map PDB
  chain positions to UniProt, NCBI RefSeq (protein and genomic), CATH, SCOPe, and Computed Structure Models
  (CSMs). Replaces the legacy 1D Coordinates Service.
humanURL: https://sequence-coordinates.rcsb.org
baseURL: https://sequence-coordinates.rcsb.org/graphql
tags:
- Sequence Alignment
- UniProt
- NCBI
- GraphQL
- Annotations
properties:
- type: Documentation
  url: https://sequence-coordinates.rcsb.org
- type: GraphQLExplorer
  url: https://sequence-coordinates.rcsb.org/graphiql/index.html
contact:
- type: Email
  url: mailto:info@rcsb.org