Congenital symmetric circumferential skin creases

Definition:

Congenital symmetric circumferential skin creases, also known as Michelin tire baby syndrome, is a rare genetic disorder characterized by generalized folding of excess skin. This feature was first described in 1969, then subsequent reports described variable additional features, such as intellectual disability (ID), facial dysmorphism, and cardiac and genital anomalies. It has been reported that mutations in either MAPRE2 or TUBB underlie the genetic origin of this syndrome. MAPRE2 encodes a member of the microtubule end-binding family of proteins that bind to the guanosine triphosphate cap at growing microtubule plus ends, and TUBB encodes a beta-tubulin isotype that is expressed abundantly in the developing brain.

References:

[1]. Mala Isrie, et al. Mutations in Either TUBB or MAPRE2 Cause Circumferential Skin Creases Kunze Type. Am J Hum Genet. 2015 Dec 3;97(6):790-800. [Content Brief]

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