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Qué (quién) es CD$1$ - definición

FAMILY OF GLYCOPROTEINS EXPRESSED ON THE SURFACE OF VARIOUS HUMAN ANTIGEN-PRESENTING CELLS

Antigens, cd1; Group 1 CD1; CD 1a; CD 1

CD Video

FORMAT OF OPTICAL MEDIA DISC INTRODUCED IN 1987, COMBINING THE TECHNOLOGIES OF STANDARD COMPACT DISC AND LASERDISC

CD-V; Cd-video; CD-Video; CD video

CD Video (also known as CDV, CD-V, or CD+V) is a format of optical media disc that was introduced in 1987 that combines the technologies of standard compact disc and LaserDisc. CD-V discs are the same size as a standard 12-cm audio CD, and contain up to 20 minutes' worth of CD audio that can be played on any audio CD player.

https://en.wikipedia.org/wiki/CD_Video

CD-R

COMPACT DISC FORMAT THAT CAN BE WRITTEN ONCE AND READ ARBITRARILY MANY TIMES

Blank recordable CD; Blank Recordable CDs; Recordable CD; CD-WO; Write once CD; Optical Programmable Read Only Memory; CD-WORM; CD+R; Burned cds; Cd-r; CD-Rs; Blank CD; CD-Recordable; Music cd-r; Compact Disc Recordable; GigaRec

¦ abbreviation compact disc recordable, a CD which can be recorded on once only.

Compact Disc Recordable

COMPACT DISC FORMAT THAT CAN BE WRITTEN ONCE AND READ ARBITRARILY MANY TIMES

Blank recordable CD; Blank Recordable CDs; Recordable CD; CD-WO; Write once CD; Optical Programmable Read Only Memory; CD-WORM; CD+R; Burned cds; Cd-r; CD-Rs; Blank CD; CD-Recordable; Music cd-r; Compact Disc Recordable; GigaRec

<storage> (CD-R) A write-once version of CD-ROM. CD-Rs can hold about 650 megabytes of data. They are very durable and can be read by normal CD-ROM drives, but once data has been written it cannot be altered. Standard prerecorded CDs have their information permanently stamped into an aluminium reflecting layer. CD-R discs have a dye-based recording layer and an additional golden reflecting layer. Digital information is written to the disc by burning (forming) pits in the recording layer in a pattern corresponding to that of a conventional CD. The laser beam heats the substrate and recording layer to approximately 250 C. The recording layer melts and the substrate expands into the space that becomes available. {Phillips: New Technologies (http://www-us.sv.philips.com/newtech/cdrewritable.html)}. See also CD-RW and DVD-RAM. (1999-08-01)

Wikipedia

CD1

CD1 (cluster of differentiation 1) is a family of glycoproteins expressed on the surface of various human antigen-presenting cells. CD1 glycoproteins are structurally related to the class I MHC molecules, however, in contrast to MHC class 1 proteins, they present lipids, glycolipids and small molecules antigens to T cells. Both αβ and γδ T cells recognise CD1 molecules.

The human CD1 gene cluster is located on chromosome 1. Genes of the CD1 family were first cloned in 1986, by Franco Calabi and C. Milstein, whereas the first known lipid antigen for CD1 was discovered in 1994, during studies of Mycobacterium tuberculosis. The first antigen that was discovered to be able to bind CD1 and then be recognised by TCR is C80 mycolic acid. Even though their precise function is unknown, The CD1 system of lipid antigen recognition by TCR offers the prospect of discovering new approaches to therapy and developing immunomodulatory agents.

https://en.wikipedia.org/wiki/CD1