Evidence map›Paper›PMID 31586394›Full record

ArticleNucleic acids research2020

The MetaCyc database of metabolic pathways and enzymes - a 2019 update.

Ron Caspi, Richard Billington, Ingrid M Keseler, Anamika Kothari, Markus Krummenacker, Peter E Midford, Wai Kit Ong, Suzanne Paley, Pallavi Subhraveti, Peter D Karp

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06513026 (Milk for Diabetes Prevention), which is not on this map. Cited by 793 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
793citing papers in PubMed, 2 pooled it
36.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06513026 narecruitingnot on this mapstarted 2026, after this paper: background citation

Milk for Diabetes Prevention

TypeinterventionalSponsorAlbert Einstein College of MedicineRan2026 to 2028Enrolled40ConditionsLactose Intolerance, Lactose Intolerant, Lactase Persistence, Pre-DiabetesArmsLactose-Containing Milk, Lactose-Free Milk
3 · Its place in the literature

Who cites it

793 citing papers in PubMed, 2 syntheses or guidelines pooled it, 1,333 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Testosterone administration partially modulates gut microbiota responses to severe energy deficit.American journal of physiology. Endocrinology and metabolism · 2026
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733 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Ron CaspiSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Richard BillingtonSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Ingrid M KeselerSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Anamika KothariSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Markus KrummenackerSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Peter E MidfordSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Wai Kit OngSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Suzanne PaleySRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Pallavi SubhravetiSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
Peter D KarpSRI International, 333 Ravenswood Ave, Menlo Park, CA 94025, USA.
SRI International · US

Funding

The MetaCyc & BioCyc Pathway/Genome Databases (SRI Proposal ECU 14-630)R01GM080746 · NIGMS · SRI INTERNATIONAL · PI CASPI, RON, KARP, PETER D · 2007 to 2021
$15.6M
NIGMS NIH HHS R01 GM080746
6 · The paper itself

Abstract

MetaCyc (MetaCyc.org) is a comprehensive reference database of metabolic pathways and enzymes from all domains of life. It contains 2749 pathways derived from more than 60 000 publications, making it the largest curated collection of metabolic pathways. The data in MetaCyc are evidence-based and richly curated, resulting in an encyclopedic reference tool for metabolism. MetaCyc is also used as a knowledge base for generating thousands of organism-specific Pathway/Genome Databases (PGDBs), which are available in BioCyc.org and other genomic portals. This article provides an update on the developments in MetaCyc during September 2017 to August 2019, up to version 23.1. Some of the topics that received intensive curation during this period include cobamides biosynthesis, sterol metabolism, fatty acid biosynthesis, lipid metabolism, carotenoid metabolism, protein glycosylation, antibiotics and cytotoxins biosynthesis, siderophore biosynthesis, bioluminescence, vitamin K metabolism, brominated compound metabolism, plant secondary metabolism and human metabolism. Other additions include modifications to the GlycanBuilder software that enable displaying glycans using symbolic representation, improved graphics and fonts for web displays, improvements in the PathoLogic component of Pathway Tools, and the optional addition of regulatory information to pathway diagrams.

Indexed as

Databases, FactualMetabolic Networks and PathwaysSoftwareAnimalsEnzymesGenomicsHumansMetabolomicsPlantsEnzymes

Identifiers

PMID31586394
PMCPMC6943030
OpenAlexW2977870980

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.