Description_x000D_ General description_x000D_ MutL homolog 1 (MLH1) is a nucleoprotein and a major component of mismatch repair system. The MLH1 gene is located in chromosome 3p21 and is made up of 19 exons. The protein has a molecular weight of 80kDa._x000D_ Immunogen_x000D_ synthetic peptide corresponding to amino acids 591-606 of human MLH1, conjugated to KLH via an N-terminal added cysteine residue. The corresponding peptide sequence is conserved in human, rat, and mouse._x000D_ Physical form_x000D_ Solution in 0.01 M phos­phate buffered saline, pH 7.4, containing 15 mM sodium azide._x000D_ Biochem/physiol Actions_x000D_ MutL homolog 1 (MLH1) has been shown to be involved in promoting colorectal carcinogenesis.