POLYMERASE ENZYME FROM PHAGE T4
    1.
    发明公开

    公开(公告)号:US20240158767A1

    公开(公告)日:2024-05-16

    申请号:US18416306

    申请日:2024-01-18

    IPC分类号: C12N9/12 C12N15/63 C12N15/90

    摘要: The present invention relates to a polymerase enzyme with improved ability to incorporate reversibly terminating nucleotides. The enzyme comprising the following mutations in the motif A region (SGS). It relates to a polymerase enzyme according to SEQ ID NO. 1 or any polymerase that shares at least 70% amino acid sequence identity thereto, comprising a mutation selected from the group of (i) at position 412 of SEQ ID NO. 1: serine (S) (L412S) and/or, (ii) at position 413 of SEQ ID NO. 1: glycine (G) (Y413G) and/or (iii) at position 414 of SEQ ID NO. 1: serine (S) (P414S), wherein the enzyme has little or no 3′-5′ exonuclease activity.

    POLYPHENOLIC ADDITIVES IN SEQUENCING-BY-SYNTHESIS

    公开(公告)号:US20210355529A1

    公开(公告)日:2021-11-18

    申请号:US17386883

    申请日:2021-07-28

    IPC分类号: C12Q1/6823 C12Q1/6869

    摘要: The invention relates to methods, compositions, devices, systems and kits as described including, without limitation, reagents and mixtures for determining the identity of nucleic acids in nucleotide sequences using, for example, sequencing by synthesis methods. In particular, the present invention contemplates the use of polyphenolic compounds, known as antioxidant additives, to improve the efficiency of Sequencing-By-Synthesis reactions. For example, gallic acid (GA) is shown herein to be one of many exemplary SBS polyphenolic additives.