Single-stranded DNA binding protein that interacts with the region upstream of the MYC gene. Binds specifically to the DNA sequence motif 5'-[AT]CT[AT][AT]T-3'. Probably has a role in DNA replication. Highest amounts are found in placenta, lung and heart. Expressed at highest levels during the G1 to S transition of the cell cycle. May be produced at very low levels due to a premature stop codon in the mRNA, leading to nonsense-mediated mRNA decay. Truncated N-terminus. Wrong coding sequence.