Macromolecule Annotations for the Entities in PDB 1KLN

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
A PF01612 DNA_pol_A_exo1 3'-5' exonuclease Domain This domain is responsible for the 3'-5' exonuclease proofreading activity of E. coli DNA polymerase I (polI) and other enzymes, it catalyses the hydrolysis of unpaired or mismatched nucleotides. This domain consists of the amino-terminal half of the Klenow fragment in E. coli polI it is also found in the Werner syndrome helicase (WRN), focus forming activity 1 protein (FFA-1) and ribonuclease D (RNase D). Werner syndrome is a human genetic disorder causing premature aging; the WRN protein has helicase activity in the 3'-5' direction [4,5]. The FFA-1 protein is required for formation of a replication foci and also has helicase activity; it is a homologue of the WRN protein [3]. RNase D is a 3'-5' exonuclease involved in tRNA processing. Also found in this family is the autoantigen PM/Scl thought to be involved in polymyositis-scleroderma overlap syndrome. PFAM PF01612
A PF00476 DNA_pol_A DNA polymerase family A Family

Gene Product Annotation Gene Ontology Consortium Homepage

Chains Polymer Molecular Function Biological Process Cellular Component
B DNA (5'-D(*GP*CP*CP*TP*CP*GP*CP*GP*GP*CP*GP*GP*C)- 3') (1KLN:B)
  • none
  • none
  • none
C DNA (5'-D(*GP*CP*CP*GP*CP*GP*AP*GP*GP*C)- 3') (1KLN:C)
  • none
  • none
  • none
A PROTEIN (DNA POLYMERASE I KLENOW FRAGMENT (E.C.2.7.7.7)) (1KLN:A)
  • none

Protein Modification Annotation

Type PDB Residue Nr. Description