8QJ7

Cryo-EM structure of human DNA polymerase alpha-primase in pre-initiation stage 1


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
B [auth A]SCOP2B SuperfamilyZinc finger domain of DNA polymerase-alpha8032318 3001751 SCOP2B (2022-06-29)
C [auth B]SCOP2B SuperfamilyMetallo-dependent phosphatases8053379 3001067 SCOP2B (2022-06-29)
C [auth B]SCOP2B SuperfamilyNucleic acid-binding proteins8053380 3000135 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth C]PF01896DNA primase small subunit (DNA_primase_S)DNA primase small subunit- Family
B [auth A]PF08996DNA Polymerase alpha zinc finger (zf-DNA_Pol)DNA Polymerase alpha zinc fingerThe DNA Polymerase alpha zinc finger domain adopts an alpha-helix-like structure, followed by three turns, all of which involve proline. The resulting motif is a helix-turn-helix motif, in contrast to other zinc finger domains, which show anti-parall ...The DNA Polymerase alpha zinc finger domain adopts an alpha-helix-like structure, followed by three turns, all of which involve proline. The resulting motif is a helix-turn-helix motif, in contrast to other zinc finger domains, which show anti-parallel sheet and helix conformation. Zinc binding occurs due to the presence of four cysteine residues positioned to bind the metal centre in a tetrahedral coordination geometry. Function of this domain is uncertain: it has been proposed that the zinc finger motif may be an essential part of the DNA binding domain [1].
Domain
B [auth A]PF00136DNA polymerase family B (DNA_pol_B)DNA polymerase family B- Family
B [auth A]PF03104DNA polymerase family B, exonuclease domain (DNA_pol_B_exo1)DNA polymerase family B, exonuclease domain- Family
C [auth B]PF04042DNA polymerase alpha/epsilon subunit B (DNA_pol_E_B)DNA polymerase alpha/epsilon subunit B- Family
PF04104Eukaryotic and archaeal DNA primase, large subunit (DNA_primase_lrg)Eukaryotic and archaeal DNA primase, large subunit- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth C]DNA primase small subunit
B [auth A]DNA polymerase alpha catalytic subunit
C [auth B]DNA polymerase alpha subunit B
DNA primase large subunit

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth C]IPR002755DNA primase, small subunitFamily
A [auth C]IPR014052DNA primase, small subunit, eukaryotic/archaealFamily
B [auth A]IPR038256DNA polymerase alpha, zinc finger domain superfamilyHomologous Superfamily
B [auth A]IPR036397Ribonuclease H superfamilyHomologous Superfamily
B [auth A]IPR006134DNA-directed DNA polymerase, family B, multifunctional domainDomain
B [auth A]IPR045846DNA polymerase alpha catalytic subunit, catalytic domainDomain
B [auth A]IPR017964DNA-directed DNA polymerase, family B, conserved siteConserved Site
B [auth A]IPR012337Ribonuclease H-like superfamilyHomologous Superfamily
B [auth A]IPR023211DNA polymerase, palm domain superfamilyHomologous Superfamily
B [auth A]IPR015088Zinc finger, DNA-directed DNA polymerase, family B, alphaDomain
B [auth A]IPR006172DNA-directed DNA polymerase, family BFamily
B [auth A]IPR043502DNA/RNA polymerase superfamilyHomologous Superfamily
B [auth A]IPR006133DNA-directed DNA polymerase, family B, exonuclease domainDomain
B [auth A]IPR042087DNA polymerase family B, thumb domainHomologous Superfamily
B [auth A]IPR024647DNA polymerase alpha catalytic subunit, N-terminal domainDomain
C [auth B]IPR007185DNA polymerase alpha/delta/epsilon, subunit BDomain
C [auth B]IPR043034DNA polymerase alpha, subunit B, N-terminal domain superfamilyHomologous Superfamily
C [auth B]IPR013627DNA polymerase alpha, subunit B, N-terminalDomain
C [auth B]IPR016722DNA polymerase alpha, subunit BFamily
IPR016558DNA primase, large subunit, eukaryoticFamily
IPR007238DNA primase large subunit, eukaryotic/archaealFamily

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A [auth C]PharosP49642
B [auth A]PharosP09884
C [auth B]PharosQ14181
PharosP49643