POLYMERASE ENZYME FROM PYROCOCCUS FURIOSUS

    公开(公告)号:US20220127587A1

    公开(公告)日:2022-04-28

    申请号:US16485281

    申请日:2018-02-13

    IPC分类号: C12N9/12 C12N15/63 C12Q1/6869

    摘要: The present invention relates to a polymerase enzyme from Pyrococcus furiosus 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 409 of SEQ ID NO. 3: serine (S) (L409S) and/or, (ii) at position 410 of SEQ ID NO. 3: glycine (G) (Y410G) and/or (iii) at position 411 of SEQ ID NO. 3: serine (S) (P411S), wherein the enzyme has little or no 3′-5′ exonuclease activity.

    Polyphenolic additives in sequencing by synthesis

    公开(公告)号:US11078526B2

    公开(公告)日:2021-08-03

    申请号:US16422056

    申请日:2019-05-24

    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.