Protein Expression and Purification

ISSN 1046-5928 · Elsevier BV · United States · active 1990–2026

Metrics

Scimago quartile (2025)
Q3
Cites per paper (2y)
2.0
SJR
0.417
h-index
112

“Cites per paper” is a two-year cited-by rate computed from OpenAlex. It is not a Clarivate Journal Impact Factor — we neither compute nor license that metric (how the two differ). Citation rates differ enormously between fields, so compare within a discipline. What the other figures mean: journal quartile, SJR, h-index and article processing charge.

Data as of 1 November 2026 (venue index build).

Scimago Journal Rank 2025

In the Scimago Journal Rank 2025 edition, Protein Expression and Purification is Q3 in Biotechnology (#196 of 320 journals).

Scimago 2025 quartile and rank of Protein Expression and Purification in each subject category
Subject categoryQuartileRank in category
BiotechnologyQ3#196 of 320
Cites per document (2 years, Scopus)
1.84
Documents indexed in 2025 (Scopus)
137

The quartile is the one Scimago prints for each category. Rank is the journal's position by SJR among the journals Scimago lists in that category (#1 is the highest); “—” means we hold no rank consistent with that quartile. The document count is what Scopus indexed that year, which can be lower than a journal's full output. Source: SCImago Journal Rank 2025 edition, from Scopus data (scimagojr.com, CC BY-NC).

Protein Expression and Purification is Q3 in Biotechnology (2025 edition, #196 of 320 journals), with SJR 0.417 (Scimago) and an h-index of 112 (OpenAlex). Listed in Scopus, Web of Science, PubMed.

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Indexing & access

Indexed in
ScopusWeb of SciencePubMed
Access status:
hybrid. Where this comes from publisher-level signals rather than works-level data it is a heuristic — confirm on the journal’s own site, especially regarding any article processing charge.

Official journal site →

Scope

monoclonalpolyclonalantibodiesradiologynuclearmedicineimagingviralinfectiousdiseasesgeneexpression

Frequently asked

Is Protein Expression and Purification a predatory journal?

Our screening does not flag Protein Expression and Purification. That is not a guarantee of quality — it means the venue is not on Beall's archive (frozen since 2017) and does not match our name-pattern heuristic. It is listed in Scopus, Web of Science, PubMed, which is a positive signal.

Is Protein Expression and Purification indexed in Scopus or Web of Science?

Per our venue index, Protein Expression and Purification appears in: Scopus, Web of Science, PubMed. Index membership changes over time — confirm on the index's own site before relying on it.

What is the impact factor of Protein Expression and Purification?

Papers in Protein Expression and Purification are cited about 2.0 times each within two years of publication, and Scimago places it in Q3, with an h-index of 112. Those are the open equivalents: the Clarivate Journal Impact Factor is a proprietary metric we neither compute nor license, so we show the two-year citation rate and Scimago quartile instead — they answer the same question of how heavily the journal is cited. A citation rate is a property of a field as much as of a journal.

What Scimago quartile is Protein Expression and Purification (Q1, Q2, Q3, or Q4)?

In the Scimago Journal Rank 2025 edition, Protein Expression and Purification is Q3 in Biotechnology (#196 of 320 journals). Quartiles split the journals in a subject category into four equal groups by SJR, so Q1 is the most-cited quarter and Q4 the least; Protein Expression and Purification is cited about 2.0 times per paper over two years, with an h-index of 112.

What is the Web of Science (JCR) quartile of Protein Expression and Purification?

The Web of Science quartile comes from Clarivate's Journal Citation Reports (JCR), a proprietary product we neither license nor compute — so we cannot state a JCR quartile for Protein Expression and Purification. The open equivalent is its Scimago quartile, Q3, derived from Scopus citation data. Because JCR ranks against Web of Science and Scimago against Scopus, the two can differ, so check Clarivate's site directly if you need the JCR quartile specifically.

Is Protein Expression and Purification open access?

Our index records its access status as "hybrid". Where this is derived from publisher-level signals rather than works-level data it is a heuristic, so confirm on the journal's own site — particularly if an article processing charge matters to you.

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