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Full data All rows, with sequences and SMILES where available Table All rows without long sequence or SMILES fields Review files Source records and review notes. Request by email. Dataset notes Snapshot IDs, field coverage, sources, and licenses
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Enzyme EC number Organism Substrate kcats-1 KmmM kcat/Kms-1 mM-1 T (°C) pH Status
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Using CatLog

Search the table, open a row, and download the data you need.

CatLog workflow: search the catalog, scan the results table, open a record panel, download the data.
  1. 1

    Search

    Enter an enzyme, EC number, organism, or substrate.

  2. 2

    Compare

    Read each value with its assay temperature and pH.

  3. 3

    Open a row

    Check its protein, substrate, paper, and source.

  4. 4

    Download

    Save all rows, the current page, or one open record.

What one row includes

Full data includes sequences and SMILES where available. Review files add source records and review notes.

Example 4-hydroxyacetophenone monooxygenase

OED UniProt Q93TJ5 PMID 12514023

In Full data

Catalog row

0.00082 mM Km for 4-Aminoacetophenone
Assay
30 °C · pH 7.5
Protein
Q93TJ5 · wild type
Paper
PMID 12514023
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Review file

Paper
Table 1
Reported
0.82 µM
Unit check
0.82 µM = 0.00082 mM
Review note
Same kinetic value; wild-type sequence added.
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Field meanings

kcat
Turnover number (s-1)
Km
Substrate concentration at half-maximal rate (mM)
kcat/Km
Catalytic efficiency (s-1 mM-1). Calculated values are marked.
T and pH
Temperature and pH recorded for the measurement.

A dash means a value is missing or hidden after a data check. Open the row to see why.

Unit not recorded means the source did not give a unit; the column unit does not apply. A warning marks a value to check against its source. Open the row for the reason.

For a variant, the wild-type sequence is the reference. A variant sequence is shown only when it was supplied or reconstructed.

Review status

Accepted
CatLog checked the kinetic value and enzyme identity. The value was kept as reported or updated from a saved source.
Accepted (identity only)
The protein identity and sequence were checked, but CatLog has no paper reference for the kinetic value.
Further checks
Review is unfinished. The sequence, substrate structure, or match to the original measurement still needs checking.
Unreviewed or excluded
The row is unreviewed, was calculated from other reported values, or remains disputed.
Paper evidence
A value and its table or measurement excerpt are saved from the paper. This alone does not mean Accepted.
Source note
A database note is saved; no paper-value excerpt is attached.

CatLog uses automated checks. A lab member reviews cases that need a decision.

Status describes our review, not the paper's quality.

Downloads

Full data
All rows, with sequences and SMILES where available.
Table
All rows in a smaller file, without long sequence or SMILES fields.
From Browse
Download the current page or the open record.

Cite this snapshot

Sajeevan, K. A., et al. (2025). Robust Prediction of Enzyme Variant Kinetics with RealKcat. bioRxiv, version 2. doi: 10.1101/2025.02.10.637555.

Cite the CatLog paper and include the snapshot date and data ID in your methods or data statement.

Snapshot
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Data ID
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CatLog paper Dataset notes (README) Report a data issue

Data sources and licenses

CatLog combines kinetic values and enzyme identities from the databases below. Each keeps its own license; check it before redistributing rows.

BRENDA
License: CC BY 4.0
SABIO-RK
See the source site for license terms
SKiD
License: CC BY-NC-ND 4.0
Open Enzyme Database (OED)
See the source site for license terms
UniProt
License: CC BY 4.0

For reuse of CatLog review notes and corrections, contact the Chowdhury Lab.