All articles A–Z

SORT1

SORT1 (sortilin 1, NTS3/gp95) is a human gene on 1p13.3 encoding sortilin, a VPS10-family trafficking receptor. Its noncoding variant rs12740374 controls hepatic expression, linking the locus to LDL cholesterol and myocardial infarction risk.

Sortase A

Sortase A (SrtA), S. aureus cysteine transpeptidase anchoring LPXTG-motif surface proteins to the cell wall; also the basis of sortagging bioconjugation and an anti-virulence drug target.

Sortase-mediated ligation

Sortase-mediated ligation, also called sortagging, is an enzymatic method for site-specific protein modification in which bacterial sortase A joins an LPXTG-tagged protein to an oligoglycine-bearing partner through a native peptide bond.

Oct 15, 2026

Sortation

Sortation is the automated routing of individual items such as parcels or mail to many destinations at high speed, using scanning data and mechanical diverting mechanisms.

Sortavala (Сортавала)

Sortavala (Сортавала), called Serdobol before the 19th century, is a town of about 19,000 on Lake Ladoga in Karelia, Russia, near the Finnish border, known for its preserved Finnish architecture.

Oct 3, 2026

Sorted Food

Sorted Food (SORTEDfood) is a British food media company and YouTube channel founded 10 March 2010 by school friends Barry Taylor, Ben Ebbrell, Jamie Spafford, and Mike Huttlestone, known for community-driven cooking videos, battles, and the Sidekick app.

Sorting

Sorting is the problem of arranging a collection of items so their keys appear in a well-defined order, such as numerical or alphabetical order, and a central component in algorithm design.

Sorting algorithm

A sorting algorithm, also called a sort algorithm, is a method for rearranging a sequence of items into a specified order, such as ascending numerical or lexicographic order.

Sorting and assembly machinery

Sorting and assembly machinery (SAM, or TOB) is the mitochondrial outer membrane complex, built around the BamA homolog Sam50 with Sam35 and Sam37, that folds and inserts β-barrel proteins such as Tom40 and VDAC by β-barrel switching.

Oct 15, 2026

Sorting network

A sorting network is a fixed arrangement of comparators that sorts every possible input; its comparison order is data independent, making it suited to parallel sorting in hardware.

Sorting Nexin

Sorting nexins (SNXs), a 33-member mammalian protein family defined by phospholipid-binding PX domains, sort endosomal cargo for recycling or degradation; linked to Parkinson's, Alzheimer's, and cancer.

Sortino ratio

The Sortino ratio is a risk-adjusted performance measure dividing excess return over a target by downside deviation, introduced by Frank Sortino and Lee Price in 1994.

Sortition

Sortition, also known as stochocracy or selection by lot, is the selection of political officials by random lottery rather than election, used in ancient Athens.

Sørum

Sørum, former municipality in Akershus, Norway, on the Glomma at Romerike; center Sørumsand, 18,263 inhabitants (2019). Merged with Fet and Skedsmo into Lillestrøm kommune on 1 January 2020.

Sørvágsvatn

Sørvágsvatn, also called Leitisvatn or Vatnið, is the largest lake of the Faroe Islands (3.4 km²) on Vágar, famous for the Trælanípa-cliff optical illusion that makes it appear to float above the ocean despite sitting only about 30 m above sea level, draining via Bøsdalafossur.

Sorviodurum

Sorviodurum was a Roman auxiliary fort, civilian settlement, and river port on the Danube in Raetia, at modern Straubing, Germany. Its fort remains have been part of a UNESCO World Heritage site since 2021.

Sory Kandia Kouyaté

Sory Kandia Kouyaté, also credited as El Hadj Sory Kandia Kouyaté, was a Guinean griot, singer, and composer nicknamed "The Voice of the Revolution", who died in 1977.

Sōryū-class submarine

The Sōryū-class submarine is a class of twelve diesel-electric attack submarines operated by the Japan Maritime Self-Defense Force since 2009, including the world's first submarines with lithium-ion batteries.

SOS

SOS is the international Morse code distress signal, transmitted as a continuous sequence of three dots, three dashes, and three dots, adopted in Berlin in 1906.

SOS (SZA album)

SOS is SZA's second studio album, released December 9, 2022 on TDE/RCA; 23 tracks, Metacritic 90, first Billboard 200 number one for SZA, Grammy Best Progressive R&B Album, expanded as SOS Deluxe: LANA in 2024.

SOS Deluxe: Lana

SOS Deluxe: Lana (LANA) is SZA's December 20, 2024 reissue of her 2022 album SOS, adding 15 tracks (38 total, later 42), released via TDE/RCA, returning to Billboard 200 #1.

SOS trial (NCT01479452)

SOS trial (NCT01479452), Swedish Obese Subjects study: prospective matched nonrandomized trial of bariatric surgery vs usual care in 4,047 obese adults enrolled 1987–2001, showing reduced mortality (HR 0.71), diabetes incidence, and cancer in women.

SOS1

SOS1 (son of sevenless homolog 1, HGNC:11187, OMIM 182530) is a human Ras/Rac guanine nucleotide exchange factor gene on 2p22.1 that activates RAS; gain-of-function mutations cause Noonan syndrome and SOS1 inhibitors entered phase I trials in 2022.

SoSafe

SoSafe is a German security-awareness and human-risk-management software company founded in Cologne in 2018, selling subscription phishing simulations and employee training; it raised a $73 million Series B in 2022.

Sōsaku-hanga

Sōsaku-hanga (creative prints) is a Japanese print movement, begun with Kanae Yamamoto in 1904, in which one artist designs, carves, and prints each work, flourishing after World War II.

Sose Mayrig

Sose Mayrig (Սոսե Մայրիկ), born Sose Vartanian in 1868, was an Armenian fedayee fighter and wife of the leader Serob Aghpur, honored as Mayrig, meaning mother.

Sosei

Sosei (素性法師, Sosei Hōshi, "Priest Sosei") was a Japanese waka poet and Buddhist monk of the mid-Heian period, counted among the Thirty-Six Poetic Immortals and represented in the Ogura Hyakunin Isshu.

Oct 20, 2026

Sōseki (Mercurian crater)

Sōseki (Soseki) is a 92-km-wide impact crater on Mercury at 39.31°N, 38.77°W, named by the IAU in 1985 for the Japanese novelist Natsume Sōseki (1867–1916), and imaged by MESSENGER.