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Protein Expression and Purification

Academic Press Inc. · United States · Est. 1888

ISSN1096-0279

SJR Q3✓ WOS SCIE✓ Scopus / SJR

Impact Factor & Quartile · Web of Science (JCR)

✓ Indexed in the Web of Science Core Collection (SCIE) — Clarivate publishes an official Journal Impact Factor and JCR quartile for this journal.

See the official Impact Factor & quartile on the journal’s page ↗

The Impact Factor & JCR quartile are licensed by Clarivate — we link you to the official source instead of reprinting a number that can go out of date. Open metrics below: SCImago Q3. Source: Clarivate Journal Citation Reports.

📊 Standing in its field

Where this journal ranks among others in the same subject area.

SJR · Scopus

Top 75% in field

Clarivate’s JCR quartile is a separate ranking and may differ

SJR Scorei

0.417

H-Indexi

111

SNIPi

0.518

Total Worksi

6,681

Total Citationsi

138,469

2yr Mean Citednessi

1.55

Open Impact Factor alternative

Retractions

Source: Retraction Watch

Aims & Scope✦ Compiled from public sources

Protein Expression and Purification is an international journal that disseminates new information on protein expression, extraction, purification, characterization, and applications. It covers research using conventional biochemical and modern molecular biological approaches. The journal is dedicated to advancing research in the production, isolation, and utilization of proteins through biochemical and molecular biological techniques.

AI-compiled from public web sources · verify on publisher page →

General Information

Country / RegionUnited States

Primary LanguageEnglish

1st Year Published1888

FrequencyMonthly, 2003-

StatusActive (last: 2026)

Total Publications6,681

Publisher OrgElsevier BV

Visit Journal Website

Submission Info

Peer Review—

OA License—

OA Rate—

Ethics & Quality

COPE Member✗ No

OASPA Member✗ No

Not on Predatory Lists✓ Yes

Think.Check.Submit Compliance

thinkchecksubmit.org

6/11 · 55%

✅

Do you know the journal / publisher?

Academic Press Inc.

✅

Does the journal have a website?

✓ Linked

✅

Is the ISSN verified?

1096-0279

✅

Indexed in a trusted database?

WoS, Scopus

❌

Peer review process documented?

N/A

❌

Follows ethical publishing standards (COPE)?

N/A

✅

Not on predatory/blacklists?

✓ Clean

❌

Long-term digital preservation?

N/A

❌

Plagiarism detection in place?

N/A

❌

Listed in DOAJ (verified OA)?

N/A

✅

Primary language documented?

English

A twelfth criterion — whether APC fees are clearly disclosed — is not scored here; it is left out of the total rather than counted as a failure. Publication charges appear in the metrics card above.

Based on the Think.Check.Submit framework by DOAJ, COPE & OASPA. All data from verified open sources.

Publication & Citation Trend

Articles published

Citations received

167

2019

177

1.9k

2020

151

1.5k

2021

119

632

2022

117

427

2023

144

538

2024

150

190

2025

2026

Source: OpenAlex · Each year’s green bar = citations earned by that year’s papers, counted to date — so recent years look lower simply because their papers haven’t had time to be cited yet.

SJR Quartile by Discipline

Scimago ranks this journal separately in each subject category — its quartile can differ by discipline.

BiotechnologyQ3

Subject Classification

Web of Science Categories

Biochemical Research MethodsBiochemistry & Molecular BiologyBiotechnology & Applied Microbiology

Scopus Categories

Biotechnology

Research Topics (OpenAlex)

Monoclonal and Polyclonal Antibodies ResearchViral Infectious Diseases and Gene Expression in InsectsProtein purification and stabilityBacterial Genetics and BiotechnologyRNA and protein synthesis mechanismsGlycosylation and Glycoproteins ResearchEnzyme Production and CharacterizationEnzyme Structure and FunctionTransgenic Plants and ApplicationsBacteriophages and microbial interactions

Frequently asked questions about Protein Expression and Purification

Is Protein Expression and Purification a predatory journal?

PubScope has no integrity flags on record for Protein Expression and Purification: it is indexed in Web of Science, Scopus, and is not on DOAJ's withdrawn list. Indexing is a transparency signal, not a guarantee — always confirm fit and policies before submitting.

What is the impact factor of Protein Expression and Purification?

Protein Expression and Purification is indexed in the Web of Science Core Collection, so Clarivate publishes an official Journal Impact Factor for it (since the 2023 Journal Citation Reports, every Core Collection journal — including Arts & Humanities and Emerging Sources titles — receives one). PubScope links to Clarivate's official source rather than reprinting the number, which can be out of date. Its open 2-year mean citedness is 1.55.

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

Protein Expression and Purification is indexed in Web of Science, Scopus.