PD-1

Programmed cell death 1 - mammalian protein found in Homo sapiens. Article “PD-1” in Persian Wikipedia has 36.7 points for quality (as of July 1, 2026). The article contains 21 references and 7 sections.

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

Since the creation of article “PD-1”, its content was written by 3 registered users of Persian Wikipedia and edited by 154 registered Wikipedia users in all languages.

The article is cited 13 times in Persian Wikipedia and cited 1605 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Persian): #14798 in December 2018
• Global: #38178 in October 2018

The highest popularity rank from 2008:

• Local (Persian): #105503 in June 2022
• Global: #28464 in October 2018

There are 16 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, 2026 (including revision history and pageviews for previous years).

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

#	Language	Quality grade	Quality score
1	English (en) Programmed cell death protein 1		85.3944
2	Chinese (zh) 程序性細胞死亡蛋白1		48.0812
3	Czech (cs) PD-1		42.2617
4	Polish (pl) Receptor programowanej śmierci 1		40.5617
5	French (fr) Protéine 1 de la mort cellulaire programmée		38.107
6	Persian (fa) PD-1		36.7389
7	German (de) Programmed Cell Death Protein 1		33.534
8	Korean (ko) PD-1		32.4851
9	Arabic (ar) بروتين موت الخلية المبرمج 1		29.2469
10	Japanese (ja) PD-1		28.4728

More...

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

The most popular language versions of the article "PD-1" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Programmed cell death protein 1		1 824 049
2	Japanese (ja) PD-1		122 606
3	German (de) Programmed Cell Death Protein 1		80 410
4	Russian (ru) PD1		63 156
5	French (fr) Protéine 1 de la mort cellulaire programmée		59 507
6	Korean (ko) PD-1		54 828
7	Polish (pl) Receptor programowanej śmierci 1		24 066
8	Portuguese (pt) PD-1		16 547
9	Italian (it) Proteina 1 della morte cellulare programmata		16 163
10	Arabic (ar) بروتين موت الخلية المبرمج 1		12 401

More...

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

The most popular language versions of the article "PD-1" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Programmed cell death protein 1		2 386
2	German (de) Programmed Cell Death Protein 1		209
3	Japanese (ja) PD-1		206
4	French (fr) Protéine 1 de la mort cellulaire programmée		178
5	Polish (pl) Receptor programowanej śmierci 1		131
6	Italian (it) Proteina 1 della morte cellulare programmata		117
7	Russian (ru) PD1		107
8	Korean (ko) PD-1		94
9	Persian (fa) PD-1		38
10	Chinese (zh) 程序性細胞死亡蛋白1		32

More...

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

Language versions of the article "PD-1" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Programmed cell death protein 1		74
2	French (fr) Protéine 1 de la mort cellulaire programmée		16
3	Japanese (ja) PD-1		9
4	Arabic (ar) بروتين موت الخلية المبرمج 1		8
5	German (de) Programmed Cell Death Protein 1		7
6	Russian (ru) PD1		7
7	Polish (pl) Receptor programowanej śmierci 1		6
8	Estonian (et) PD-1		5
9	Italian (it) Proteina 1 della morte cellulare programmata		5
10	Czech (cs) PD-1		3

More...

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

Language versions of the article "PD-1" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Chinese (zh) 程序性細胞死亡蛋白1		2
2	Arabic (ar) بروتين موت الخلية المبرمج 1		1
3	Korean (ko) PD-1		1
4	Czech (cs) PD-1		0
5	German (de) Programmed Cell Death Protein 1		0
6	English (en) Programmed cell death protein 1		0
7	Estonian (et) PD-1		0
8	Persian (fa) PD-1		0
9	French (fr) Protéine 1 de la mort cellulaire programmée		0
10	Italian (it) Proteina 1 della morte cellulare programmata		0

More...

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

Language versions of the article "PD-1" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Programmed cell death protein 1		511
2	Russian (ru) PD1		351
3	Ukrainian (uk) PDCD1		345
4	Polish (pl) Receptor programowanej śmierci 1		103
5	Chinese (zh) 程序性細胞死亡蛋白1		84
6	Japanese (ja) PD-1		52
7	French (fr) Protéine 1 de la mort cellulaire programmée		43
8	Italian (it) Proteina 1 della morte cellulare programmata		26
9	German (de) Programmed Cell Death Protein 1		23
10	Persian (fa) PD-1		13

More...

#	Language	Value
ar	Arabic بروتين موت الخلية المبرمج 1
cs	Czech PD-1
de	German Programmed Cell Death Protein 1
en	English Programmed cell death protein 1
et	Estonian PD-1
fa	Persian PD-1
fr	French Protéine 1 de la mort cellulaire programmée
it	Italian Proteina 1 della morte cellulare programmata
ja	Japanese PD-1
ko	Korean PD-1
pl	Polish Receptor programowanej śmierci 1
pt	Portuguese PD-1
ro	Romanian PD-1
ru	Russian PD1
uk	Ukrainian PDCD1
zh	Chinese 程序性細胞死亡蛋白1

Best Rank

Persian: #105503 06.2022

Global: #28464 10.2018

Best Rank

Persian: #14798 12.2018

Global: #38178 10.2018

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Persian Wikipedia the most popular articles on that day were: فرزاد جمشیدی, جمهوری دموکراتیک کنگو, جمهوری کنگو, روش‌های آمیزش جنسی, زن در بالا, تشییع جنازه سید علی خامنه‌ای, جام جهانی فوتبال ۲۰۲۶, سنگال, سید علی خامنه‌ای, فرج‌لیسی.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information