Gene: [14q13/TMIP] tetramelic mirror-image polydactyly (Laurin-Sandrow syndrome);


COM

The provisional TMIP gene had been disrupted by a translocation breakpoint may determine anterior-posterior pattern in early developing limbs (Matsumoto-1997). Matsumoto et al. identified a YAC clone spanning a translocation breakpoint at 14q13. They confirmed that the breakpoint was located between 2 specific loci within a distance of 0.6 cM. Mutation in a HOX gene was suggested by Hatchwell and Dennis (Hatchwell-1996) as a likely candidate for the syndrome."

PAT

The main symptoms are hand and foot anomalies (ulnar and fibular dimelia with complete polysyndactyly and absence of tibia and radius - "mirror hands and feet") and peculiar facies (nasal clefts)."

REF

LIN,LOC "Fukushima K &: Hum Mol Genet, 4, 1643-1648, 1995
PAT "Hatchwell E, Dennis N: J Med Genet, 33, 426-428, 1996
PAT "Kogekar N &: Am J Med Genet, 46, 126-128, 1993
ABR,LOC,LIN "Matsumoto N &: Hum Genet, 99, 450-453, 1997

KEY

bone

CLA

unknown, basic

LOC

14 q13?

MIM

MIM: 135750