Disorders

X-Linked Mental Retardation 21

Synonym(s): MRX21, MRX34, X-Linked Mental Retardation 34

Gene	Locus	Protein
IL1RAPL1	Xp22.1-p21.3	X-linked interleukin-1 receptor accessory protein-like 1

Laboratory	Test Method	Prenatal	Carrier *
Ambry Genetics Corp, Ambry Genetics - Aliso Viejo, CA, USA
Centogene AG, Rare Disease Company - Rostock, Germany
Emory University School of Medicine, Emory Molecular Genetics Laboratory - Atlanta, GA, USA
PerkinElmer, Signature Genomic Laboratories - Spokane, WA, USA	• FISH-metaphase

^* Carrier column is relevant to autosomal recessive and X-linked inheritance; column will be blank when it is not relevant (e.g. autosomal dominant inheritance, microdeletions/duplications) and/or is not offered by the lab.