2A or II-A may refer to: *

Alberta Highway 2A Alberta Provincial Highway No. 2A is the designation of six alternate routes off Highway 2 in Alberta, Canada. In general, these are original sections of Highway 2, such as the southern portion of Macleod Trail in Calgary. They passed through co ...

Alpha-2A adrenergic receptor The alpha-2A adrenergic receptor (α2A adrenoceptor), also known as ADRA2A, is an α2 adrenergic receptor, and also denotes the human gene encoding it. Receptor α2 adrenergic receptors include 3 highly homologous subtypes: α2A, α2B, and α2 ...

Keratin 2A Keratin 2A also known as keratin 2E or keratin 2 is a protein that in humans is encoded by the ''KRT2A'' gene. Keratin 2A is a type II cytokeratin. It is found largely in the upper spinous layer of epidermal keratinocytes and mutations in the ge ...

Massachusetts Route 2A Route 2A is a east–west state highway in Massachusetts. It exists in several sections of Massachusetts, mainly as parts of former Route 2 that have been moved or upgraded. Route 2A runs from Greenfield in the west to Boston in ...

Stalag II-A In Germany, stalag (; ) was a term used for prisoner-of-war camps. Stalag is a contraction of "Stammlager", itself short for ''Kriegsgefangenen-Mannschaftsstammlager'', a literal translation of which is "War-prisoner" (i.e. POW) "enlisted" "ma ...

Telecom 2A Telecom may refer to: * Telecommunications ** A telephone company (or ''telecommunications service provider'') ** The telecommunications industry * Telecom Animation Film, a Japanese studio See also * Telcom (disambiguation) * Telekom (disambi ...

, a satellite * the

transcription factor II A Transcription factor TFIIA is a nuclear protein involved in the RNA polymerase II-dependent transcription of DNA. TFIIA is one of several general (basal) transcription factors ( GTFs) that are required for all transcription events that use RNA ...

* the

Deutsche Bahn The (; abbreviated as DB or DB AG) is the national railway company of Germany. Headquartered in the Bahntower in Berlin, it is a joint-stock company ( AG). The Federal Republic of Germany is its single shareholder. describes itself as the se ...

IATA designator *

Second Amendment The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds eac ...

of various constitutions ** the

Second Amendment to the United States Constitution The Second Amendment (Amendment II) to the United States Constitution protects the Right to keep and bear arms in the United States, right to keep and bear arms. It was ratified on December 15, 1791, along with nine other articles of the Un ...

that protects right to keep and bear arms * the number of the French department

Corse-du-Sud Corse-du-Sud (; co, link=no, Corsica suttana , or ; en, Southern Corsica) is (as of 2019) an administrative department of France, consisting of the southern part of the island of Corsica. The corresponding departmental territorial collect ...

* a strain of the bacterium ''

Lactobacillus sakei ''Latilactobacillus sakei'' is the type species of the genus ''Latilactobacillus'' that was previously classified in the genus ''Lactobacillus''. It is homofermentative; hexoses are metabolized via glycolysis to lactic acid as main metabolite; ...

'' *

2A self-cleaving peptides 2A self-cleaving peptides, or 2A peptides, is a class of 18–22 aa-long peptides, which can induce ribosomal skipping during translation of a protein in a cell. These peptides share a core sequence motif of , and are found in a wide range of ...