Waardenburg syndrome 2A

(redirected from WS2)
Also found in: Acronyms, Wikipedia.

Waardenburg syndrome 2A

An autosomal dominant disorder (OMIM:193510) with variable expression and penetrance, which is characterised by sensorineural hearing loss, patchy hair and skin depigmentation.

Molecular pathology
Caused by defects of MITF, which encodes microphthalmia-associated transcription factor, a protein that regulates differentiation and development of melanocytes and retinal pigment epithelium, and is responsible for pigment cell-specific transcription of melanogenesis enzyme genes.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
The user-friendly WS2 offers one-touch media loading and simple single-button operation.
Calculation of the WS2 [d.sub.220] value (scenario 1).
3 as an example, an execution of the system may be (< ws1, ws2, ws3, ws5, ws2, ws4, ws5, ws7 >, W).
For instance, the scan of the first record, "P1, WS2, PA5, RPM4" containing four items will be represented as "P1, WS2, RPM4, PA5".
Part/defect/ P1/porosity P2/cracks P3/overlap, manufacturing /castings /machining underfill, process undercut/ welding Penetrant spraying 10 s 10 s 10 s time, WS2 Dwell time--in WS2, 350 s 330 s 300 s WS3 and/or between WS2 and WS3 Penetrant washing 10 s 15 s 20 s time, WS3 Drying time, WS4 200 s 250 s 350 s Developer spraying 7 s 10 s 12 s time, Developer time--in 600 s 500 s 400 s WS5, WS6 and/or between WS5 and WS6 Inspection time, 40 s 30 s 50 s WS6 The dwell time is defined as the time for the liquid penetrant to infuse into the material's surface.
Two working calibrator solutions, WS1 and WS2, were prepared by diluting 5.0 mL and 350 [micro]L PSS in 100 mL anhydrous ethanol each [WS1 concentration 17.4 nmol/L (500 ng/dL), WS2 concentration 1.21 nmol/L (35.0 ng/dL)].
By Mark Guidi wS2 "st o2 owp hwb cs "He was just lying flat and it's a major worry when you see something like that.
The original opened the door on a world of excess - WS2 closes it.
* WS2.12 because the student was able to insert graphics, save work and upload the document to a Files Box property.
The WS2 Flat has all features of a photoelectric proximity switch, in a 3.5mm wide body.