In a shallow dish or resealable bag, mix together the lemon juice, soy sauce, mustard, garlic, brown sugar and curry paste. Add shrimp, and seal or cover. Marinate in the refrigerator for 1 hour.
3 tablespoons fresh lemon juice, 1 tablespoon soy sauce, 1 tablespoon Dijon mustard, 2 cloves garlic, minced, 1 tablespoon brown sugar, 2 teaspoons curry paste