Protein A

en

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Protein A

Quality:

Protein A - surface protein in bacteria cell wall known for its ability to bind many mammal immunoglobulins. Article “Protein A” in English Wikipedia has 38.4 points for quality (as of July 1, 2025). The article contains 22 references and 8 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

Since the creation of article “Protein A”, its content was written by 53 registered users of English Wikipedia and edited by 139 registered Wikipedia users in all languages.

The article is cited 46 times in English Wikipedia and cited 132 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #36997 in August 2016
  • Global: #97948 in May 2012

The highest popularity rank from 2008:

  • Local (English): #147438 in April 2015
  • Global: #203515 in April 2015

There are 12 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Protein A
38.3833
2Serbo-Croatian (sh)
Protein A
18.0191
3Serbian (sr)
Protein A
17.3453
4Spanish (es)
Proteína A
15.6377
5Chinese (zh)
蛋白質A
13.9455
6Arabic (ar)
بروتين A
11.5733
7Persian (fa)
پروتئین آ
10.6571
8German (de)
Protein A
9.6842
9Russian (ru)
Белок A
9.4736
10French (fr)
Protéine A
8.8521
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Protein A" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Protein A
923 057
2German (de)
Protein A
130 103
3Spanish (es)
Proteína A
63 751
4French (fr)
Protéine A
55 947
5Russian (ru)
Белок A
39 530
6Portuguese (pt)
Proteína A
23 357
7Chinese (zh)
蛋白質A
17 355
8Polish (pl)
Białko A
16 569
9Persian (fa)
پروتئین آ
4 343
10Arabic (ar)
بروتين A
3 426
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Protein A" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Protein A
1 143
2German (de)
Protein A
132
3Chinese (zh)
蛋白質A
98
4French (fr)
Protéine A
93
5Russian (ru)
Белок A
88
6Spanish (es)
Proteína A
67
7Polish (pl)
Białko A
52
8Portuguese (pt)
Proteína A
22
9Persian (fa)
پروتئین آ
21
10Arabic (ar)
بروتين A
16
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Protein A" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Protein A
53
2German (de)
Protein A
24
3Russian (ru)
Белок A
17
4French (fr)
Protéine A
16
5Polish (pl)
Białko A
8
6Spanish (es)
Proteína A
6
7Persian (fa)
پروتئین آ
5
8Portuguese (pt)
Proteína A
3
9Serbo-Croatian (sh)
Protein A
2
10Serbian (sr)
Protein A
2
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Protein A" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Persian (fa)
پروتئین آ
1
2Arabic (ar)
بروتين A
0
3German (de)
Protein A
0
4English (en)
Protein A
0
5Spanish (es)
Proteína A
0
6French (fr)
Protéine A
0
7Polish (pl)
Białko A
0
8Portuguese (pt)
Proteína A
0
9Russian (ru)
Белок A
0
10Serbo-Croatian (sh)
Protein A
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Protein A" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Protein A
46
2French (fr)
Protéine A
27
3German (de)
Protein A
17
4Russian (ru)
Белок A
16
5Arabic (ar)
بروتين A
5
6Spanish (es)
Proteína A
5
7Chinese (zh)
蛋白質A
4
8Polish (pl)
Białko A
3
9Serbo-Croatian (sh)
Protein A
3
10Serbian (sr)
Protein A
3
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
بروتين A
deGerman
Protein A
enEnglish
Protein A
esSpanish
Proteína A
faPersian
پروتئین آ
frFrench
Protéine A
plPolish
Białko A
ptPortuguese
Proteína A
ruRussian
Белок A
shSerbo-Croatian
Protein A
srSerbian
Protein A
zhChinese
蛋白質A

Popularity rank trends

Best Rank English:
#147438
04.2015
Global:
#203515
04.2015

AI rank trends

Best Rank English:
#36997
08.2016
Global:
#97948
05.2012

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Protein A from Wikipedia articles about Staphylococcus aureus, Protein A/G, Protein G, Repligen and Affinity chromatography. Whereas reading the article about Protein A people most often go to Wikipedia articles on Protein G, Fragment crystallizable region, Antibody, Staphylococcus aureus and Protein A/G.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 3 January 2026

On 3 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Nicolás Maduro, Venezuela, Hugo Chávez, Cilia Flores, Delcy Rodríguez, 1st Special Forces Operational Detachment-Delta, Stranger Things, 2026 United States strikes in Venezuela, Manuel Noriega, María Corina Machado.

In English Wikipedia the most popular articles on that day were: Nicolás Maduro, Venezuela, 2026 United States strikes in Venezuela, Cilia Flores, Delcy Rodríguez, Hugo Chávez, Manuel Noriega, 1989 Tiananmen Square protests and massacre, María Corina Machado, USS Iwo Jima (LHD-7).

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information