CinA is the first gene in the competence-inducible (cin) operon, and is thought to be specifically required at some stage in the process of transformation [1]. This Pfam family consists of putative competence-damaged proteins from the cin operon. Some members of this family have nicotinamide mononucleotide (NMN) deamidase activity [2].

1: The recA gene of Streptococcus pneumoniae is part of a competence-induced operon and controls lysogenic induction. Martin B, Garcia P, Castanie MP, Claverys JP; Mol Microbiol 1995;15:367-379. PMID:7538190

2: Identification of nicotinamide mononucleotide deamidase of the bacterial pyridine nucleotide cycle reveals a novel broadly conserved amidohydrolase family. Galeazzi L, Bocci P, Amici A, Brunetti L, Ruggieri S, Romine M, Reed S, Osterman AL, Rodionov DA, Sorci L, Raffaelli N; J Biol Chem. 2011;286:40365-40375. PMID:21953451