Table 2 of
Guleria, Mol Vis 2007;
13:1657-1665.
Table 2. Mutations in human connexin 46 (GJA3)
Reported mutations in GJA3 associated with different congenital cataract phenotypes in different families.
Amino acid Cataract Family change Location type Phenotype description origin Reference ------ ---------------- ----------- ---------------------------------------- ---------- --------- D3Y NH2-terminal Zonular Progressive zonular pulverulent cataract Hispanic [34] cytoplasmic loop pulverulent L11S NH2-terminal Ant-egg Lamellar cataract with dense ant-egg Danish [8] cytoplasmic loop like structures imbedded in the lens, primarily confined to the perinuclear layers and to lesser degree in the fetal nucleus V28M First Variable Variable cataract types like total, Indian [24] transmembrane anterior capsular cataract with domain posterior cortical opacities in different individuals F32L First Nuclear Punctate opacities in the central zone Chinese [26] transmembrane pulverulent of the lens limited to the embryonal domain nucleus R33L First Finely A band of opacities formed by numerous Indian Present transmembrane granular granular opacities with diffused edges study domain embryonal on either side involving embryonal nucleus. Optical section of the lens shows slit like or hollow discus like clear area surrounded by thick finely granular opacity W45S First Nuclear Progressive nuclear cataract Chinese [35] extracellular loop P59L First Nuclear Coarse punctate opacities located in the American [33] extracellular punctate central or nuclear region of the lens loop N63S First Zonular Coarse and granular opacities in the Caucasian [19] extracellular pulverulent central zone of the lens. Fine dust-like loop opacities predominated in the peripheral zone of the lens. R76G Boundary of Total Total lens opacification Indian [24] first extracellular loop and second transmembrane domain R76H Boundary of Nuclear Faint lamellar nuclear opacity Australian [36] first pulverulent surrounding pulverulent nuclear extracellular opacities, some with fine gold dots or loop and second haze and some with needle-like transmembrane peripheral riders domain T87M Second Pearl box A bunch of white spots in the embryonal Indian [37] transmembrane nucleus. The central white spots domain distributed in a radial manner. The space between the surface opacity and central white spots was optically empty P187L Second Zonular Central dust-like opacity affecting the Caucasian [38] extracellular pulverulent embryonal, fetal and infantile nucleus loop of the lens surrounded by snowflake-like opacities in the anterior and posterior cortical region of the lens N188T Second Nuclear Progressive, central pulverulent opacity Chinese [39] extracellular pulverulent affecting the embryonal, fetal and loop infantile nucleus of the lens S380fs COOH-terminal Zonular Coarse and granular opacities in the Caucasian [19] cytoplasmic loop pulverulent central zone of the lens. Fine dust-like opacities predominated in the peripheral zone of the lens |