cld Chain length determinant protein MRVENNNVSGQNHDPEQIDLIDLLVQLWRGKMTIIISVIVAIALAIGYLAVAKEKWTSTAIITQPDVGQIAGYNNAMNVIYGQAAPKVSDLQETLIGRFSSAFSALAETLDNQEEPEKLTIEPSVKNQQLPLTVSYVGQTAEGAQMKLAQYIQQVDDKVNQELEKDLKDNIALGRKNLQDSLRTQEVVAQEQKDLRIRQIQEALQYANQAQVTKPQIQQTQDVTQDTMFLLGSEALESMIKHEATRPLVFSSNYYQTRQNLLDIDNLDVDKLDIHAYRYVMKPTLPIRRDSPKKAITLILAVLLGGMVGAGIVLGRNALRNYNAK WZZB3_ECOLX wzzB Polysaccharide antigen chain regulator rol 325 Confers a modal distribution of chain length on the O- antigen component of lipopolysaccharide (LPS). Gives rise to a reduced number of short chain molecules and increases in numbers of longer molecules, with a modal value of 13 (in strain O111/M92) and of 17 (in strain K12).