APEX Nuclease (Apurinic/apyrimidinic Endonuclease) 2 蛋白 (APEX2)

Apurinic/apyrimidinic (AP) sites occur frequently in DNA molecules by spontaneous hydrolysis, by DNA damaging agents or by DNA glycosylases that remove specific abnormal bases.

列出全部蛋白 基因 基因ID UniProt
 APEX2 APEX2 27301 Q9UBZ4
小鼠 APEX2 APEX2 77622 Q68G58
大鼠 APEX2 APEX2 317628  
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Insect Cells His tag „Crystallography Grade“ protein due to multi-step, protein-specific purification process 1 mg Log in to see 60 Days
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更多APEX Nuclease (Apurinic/apyrimidinic Endonuclease) 2 (APEX2)互动伙伴

Human APEX Nuclease (Apurinic/apyrimidinic Endonuclease) 2 (APEX2) interaction partners

  1. Determinants in nuclease (显示 DCLRE1C 蛋白) specificity of Ape1 (显示 APEX1 蛋白) and Ape2, human homologues of Escherichia coli exonuclease (显示 EXO1 蛋白) III

  2. Ape2 exhibits strong 3'-5' exonuclease and 3'-phosphodiesterase activities and has only a very weak AP-endonuclease activity.

  3. Ape2 may be involved in repair of oxidative DNA damage and PCNA (显示 PCNA 蛋白)-dependent repair synthesis.

Xenopus laevis APEX Nuclease (Apurinic/apyrimidinic Endonuclease) 2 (APEX2) interaction partners

  1. APE2 associates with Chk1 (显示 CHEK1 蛋白); a serine residue (S86) in the Chk1 (显示 CHEK1 蛋白)-binding motif of APE2 is essential for Chk1 (显示 CHEK1 蛋白) phosphorylation, indicating a Claspin-like but distinct role for APE2 in ATR-Chk1 (显示 CHEK1 蛋白) signaling.

Mouse (Murine) APEX Nuclease (Apurinic/apyrimidinic Endonuclease) 2 (APEX2) interaction partners

  1. expression of Apex 2 in chondrocytes appears to be associated with the degeneration of articular cartilage in osteoarthritis.

  2. Results indicate a role for apurinic/apyrimidinic endonuclease (APE (显示 RPLP0 蛋白)) 2 (Apex2) in the protection of germinal center (GC) cells from activation-induced cytidine deaminase (显示 AICDA 蛋白) (AID)-independent damage.

  3. data provide new insight into error-prone repair of AID-induced lesions, which we propose is facilitated by down-regulation of APE1 (显示 APEX1 蛋白) and up-regulation of APE2 expression in germinal center B cells.

  4. Extensive analysis of bone marrow hematopoiesis in APE2-deficient mice finds inhibition of the pro-B to pre-B lymphocyte (显示 AKAP17A 蛋白) transition, due to a p53 (显示 TP53 蛋白)-dependent DNA damage response, independent from its ubiquitous and essential homolog APE1 (显示 APEX1 蛋白).

  5. APEX2 is required for proper cell cycle progression of proliferating lymphocytes.

  6. Both APE1 (显示 APEX1 蛋白) and APE2 function in antibody switch recomibination, resulting in double stranded breaks necesary for this recombination.

  7. The present study clearly demonstrates that APEX2-null lymphocytes have a higher frequency of DNA breaks, indicating that APEX2 may play an important role(s) during their generation and/or repair.

  8. Apex2 is required for efficient somatic hypermutation of immunoglobulin genes.

蛋白简介APEX2

蛋白简介

Apurinic/apyrimidinic (AP) sites occur frequently in DNA molecules by spontaneous hydrolysis, by DNA damaging agents or by DNA glycosylases that remove specific abnormal bases. AP sites are pre-mutagenic lesions that can prevent normal DNA replication so the cell contains systems to identify and repair such sites. Class II AP endonucleases cleave the phosphodiester backbone 5' to the AP site. This gene encodes a protein shown to have a weak class II AP endonuclease activity. Most of the encoded protein is located in the nucleus but some is also present in mitochondria. This protein may play an important role in both nuclear and mitochondrial base excision repair. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene.

Gene names and symbols associated with APEX2

  • apurinic/apyrimidinic endodeoxyribonuclease 2 (APEX2)
  • apurinic/apyrimidinic endodeoxyribonuclease 2 (apex2)
  • APEX nuclease (apurinic/apyrimidinic endonuclease) 2 (apex2)
  • apurinic/apyrimidinic endodeoxyribonuclease 2 L homeolog (apex2.L)
  • APEX nuclease (apurinic/apyrimidinic endonuclease) 2 (APEX2)
  • apurinic/apyrimidinic endonuclease 2 (Apex2)
  • apurinic/apyrimidinic endodeoxyribonuclease 2 (Apex2)
  • ape2 蛋白
  • apexl2 蛋白
  • C430040P13Rik 蛋白
  • xth2 蛋白
  • zgc:55889 蛋白

Protein level used designations for APEX2

AP endonuclease 2 , AP endonuclease XTH2 , DNA-(apurinic or apyrimidinic site) lyase 2 , apurinic/apyrimidinic endonuclease-like 2 , APEX nuclease 2 , apurinic-apyrimidinic endonuclease 2 , APEX nuclease (apurinic/apyrimidinic endonuclease) 2 , DNA-(apurinic or apyrimidinic site) lyase 2-like

GENE ID SPECIES
27301 Homo sapiens
448512 Xenopus (Silurana) tropicalis
393115 Danio rerio
446614 Xenopus laevis
491499 Canis lupus familiaris
511790 Bos taurus
702084 Macaca mulatta
100410557 Callithrix jacchus
100434759 Pongo abelii
77622 Mus musculus
317628 Rattus norvegicus
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