scientificgenomicsdna-sequencesbioinformaticsuciclassification

E. coli Promoter Gene Sequences

Free

Open dataset

Sample structure: 99.8 / 100

4 download links issued

Seller: DataBazaar

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Source, license and coverage

Supplier documentation. These claims are separate from the automated sample score. A listing edit date is not a data freshness date.

License: Public
Source / creator: openml: 164
Collection method: uploaded
Coverage start: Not documented
Coverage end: Not documented
Data last updated: Not documented
Update schedule: Not documented

Source documentation ↗

OpenML labels the source "Public" but does not identify a specific reuse license; public access alone does not establish redistribution rights.

Sample structure score: 99.8 / 100

This automated check describes the inspected sample, not factual accuracy, legal rights, representativeness, or the quality of the entire dataset. It is not a customer rating.

Assessed 10 sample records (JSON) on 2026-10-09. All records in the provided sample were checked.

Check	Points	Evidence
Populated cells	50 / 50	590 of 590 top-level cells contain a value. Null, absent and blank values count as missing; zero and false count as populated.
Consistent value types	29.8 / 30	586 of 590 populated cells match their column's most common observed type. Types are inferred, not checked against real-world truth.
Consistent record shape	20 / 20	10 of 10 records have the expected fields. CSV/TSV use the header width; JSON uses the union of observed keys.

Field-level findings and improvements

Check missing cells and mixed types below. Document intentional missing values or mixed types in your field descriptions. Do not fill legitimate unknowns with invented values just to increase this score.

Field	Missing cells	Most common type	Other populated types
class	0 / 10	string	0 / 10
instance	0 / 10	string	4 / 10
p-50	0 / 10	string	0 / 10
p-49	0 / 10	string	0 / 10
p-48	0 / 10	string	0 / 10
p-47	0 / 10	string	0 / 10
p-46	0 / 10	string	0 / 10
p-45	0 / 10	string	0 / 10
p-44	0 / 10	string	0 / 10
p-43	0 / 10	string	0 / 10
p-42	0 / 10	string	0 / 10
p-41	0 / 10	string	0 / 10
p-40	0 / 10	string	0 / 10
p-39	0 / 10	string	0 / 10
p-38	0 / 10	string	0 / 10
p-37	0 / 10	string	0 / 10
p-36	0 / 10	string	0 / 10
p-35	0 / 10	string	0 / 10
p-34	0 / 10	string	0 / 10
p-33	0 / 10	string	0 / 10
p-32	0 / 10	string	0 / 10
p-31	0 / 10	string	0 / 10
p-30	0 / 10	string	0 / 10
p-29	0 / 10	string	0 / 10
p-28	0 / 10	string	0 / 10
p-27	0 / 10	string	0 / 10
p-26	0 / 10	string	0 / 10
p-25	0 / 10	string	0 / 10
p-24	0 / 10	string	0 / 10
p-23	0 / 10	string	0 / 10
p-22	0 / 10	string	0 / 10
p-21	0 / 10	string	0 / 10
p-20	0 / 10	string	0 / 10
p-19	0 / 10	string	0 / 10
p-18	0 / 10	string	0 / 10
p-17	0 / 10	string	0 / 10
p-16	0 / 10	string	0 / 10
p-15	0 / 10	string	0 / 10
p-14	0 / 10	string	0 / 10
p-13	0 / 10	string	0 / 10
p-12	0 / 10	string	0 / 10
p-11	0 / 10	string	0 / 10
p-10	0 / 10	string	0 / 10
p-9	0 / 10	string	0 / 10
p-8	0 / 10	string	0 / 10
p-7	0 / 10	string	0 / 10
p-6	0 / 10	string	0 / 10
p-5	0 / 10	string	0 / 10
p-4	0 / 10	string	0 / 10
p-3	0 / 10	string	0 / 10
p-2	0 / 10	string	0 / 10
p-1	0 / 10	string	0 / 10
p1	0 / 10	string	0 / 10
p2	0 / 10	string	0 / 10
p3	0 / 10	string	0 / 10
p4	0 / 10	string	0 / 10
p5	0 / 10	string	0 / 10
p6	0 / 10	string	0 / 10
p7	0 / 10	string	0 / 10

How the score is calculated, its limitations, and how to correct an assessment →

About this data

DNA sequences from E. coli labeled as promoter or non-promoter, each described by 57 sequential nucleotide positions. A classic molecular-biology classification benchmark for sequence analysis.

Retrieve with your agent or Python

Create an account and configure DATABAZAAR_API_KEY. This example retrieves free or already purchased data; it never makes a purchase. For a multi-file dataset, choose a file index from the manifest.

Download the Python example

python3 retrieve-dataset.py 8738c71c-ebfe-4116-b286-75d60d4d495d --output dataset.bin

Full supplier documentation

106 E. coli DNA sequences labeled as promoter or non-promoter, each described by 57 sequential nucleotide positions. A classic UCI molecular-biology classification benchmark for sequence analysis.

Schema

Name	Type	Description
class	VARCHAR
instance	VARCHAR
p-50	VARCHAR
p-49	VARCHAR
p-48	VARCHAR
p-47	VARCHAR
p-46	VARCHAR
p-45	VARCHAR
p-44	VARCHAR
p-43	VARCHAR
p-42	VARCHAR
p-41	VARCHAR
p-40	VARCHAR
p-39	VARCHAR
p-38	VARCHAR
p-37	VARCHAR
p-36	VARCHAR
p-35	VARCHAR
p-34	VARCHAR
p-33	VARCHAR
p-32	VARCHAR
p-31	VARCHAR
p-30	VARCHAR
p-29	VARCHAR
p-28	VARCHAR
p-27	VARCHAR
p-26	VARCHAR
p-25	VARCHAR
p-24	VARCHAR
p-23	VARCHAR
p-22	VARCHAR
p-21	VARCHAR
p-20	VARCHAR
p-19	VARCHAR
p-18	VARCHAR
p-17	VARCHAR
p-16	VARCHAR
p-15	VARCHAR
p-14	VARCHAR
p-13	VARCHAR
p-12	VARCHAR
p-11	VARCHAR
p-10	VARCHAR
p-9	VARCHAR
p-8	VARCHAR
p-7	VARCHAR
p-6	VARCHAR
p-5	VARCHAR
p-4	VARCHAR
p-3	VARCHAR
p-2	VARCHAR
p-1	VARCHAR
p1	VARCHAR
p2	VARCHAR
p3	VARCHAR
p4	VARCHAR
p5	VARCHAR
p6	VARCHAR
p7	VARCHAR

Sample Data

Preview a sample of the data before downloading.

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For AI Agents

Via MCP Server

# 1. Add to your agent's MCP config (claude_desktop_config.json or similar):
{
  "mcpServers": {
    "databazaar": { "command": "npx", "args": ["databazaar-mcp"] }
  }
}

# 2. Your agent can then call:
search_datasets({ query: "E. coli Promoter Gene Sequence" })
// Found: 8738c71c-ebfe-4116-b286-75d60d4d495d
get_download_url({ dataset_id: "8738c71c-ebfe-4116-b286-75d60d4d495d" })  // free — sign in with MCP OAuth first

Via REST API

# Free dataset — sign in or use your account API key:
curl https://api.databazaar.io/datasets/8738c71c-ebfe-4116-b286-75d60d4d495d/download-url -H "Authorization: Bearer $DATABAZAAR_API_KEY"