PNAS — Author Guideline Skill
Publisher: National Academy of Sciences · Verified: 2026-07 · Confirm exact limits at the PNAS author center.
Aims & scope
Multidisciplinary — biological, physical, and social sciences; food, nutrition, agriculture, microbiology, and environmental work all in scope.
Format (PNAS style)
- References: numbered in order of citation (PNAS style); numbered reference list with article titles and DOIs.
- A. B. Author, C. D. Author, Title of the article. Proc. Natl. Acad. Sci. U.S.A. 123, e2412345 (2026).
- Significance Statement (mandatory): a plain-language paragraph for non-specialists, ~120 words (confirm limit).
- Abstract: ≤250 words, unstructured.
- Structure: Title → Author affiliations → Significance Statement → Abstract → Introduction → Results → Discussion → Materials and Methods → References. Research Reports/Articles have length guidance (confirm).
- Mandatory: data availability statement; author contributions; competing interest statement.
- Figures: ≥300 dpi; RGB/CMYK per policy; one/two-column widths; editable tables.
Formatting constraints
journal: PNAS
publisher: National Academy of Sciences
reference_style: pnas-numbered
significance_statement: {required: true, words: 120}
abstract_words: 250
data_availability: required
figure_dpi: 300