Function and Biology Details
Reactions catalysed:
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
3'-end directed exonucleolytic cleavage of viral RNA-DNA hybrid
Endohydrolysis of RNA in RNA/DNA hybrids. Three different cleavage modes: 1. sequence-specific internal cleavage of RNA. Human immunodeficiency virus type 1 and Moloney murine leukemia virus enzymes prefer to cleave the RNA strand one nucleotide away from the RNA-DNA junction. 2. RNA 5'-end directed cleavage 13-19 nucleotides from the RNA end. 3. DNA 3'-end directed cleavage 15-20 nucleotides away from the primer terminus.
Specific for a P1 residue that is hydrophobic, and P1' variable, but often Pro.
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
- Immunoglobulin C1-set
- MHC class II, beta chain, N-terminal
- Immunoglobulin/major histocompatibility complex, conserved site
- Immunoglobulin-like domain
- Immunoglobulin-like domain superfamily
- Immunoglobulin-like fold
- MHC class II, alpha chain, N-terminal
- MHC classes I/II-like antigen recognition protein
2 more domains
Structure analysis Details
Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-135320 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (4 distinct):
HLA class II histocompatibility antigen, DR alpha chain
Molecule details ›
Chain: A
Length: 229 amino acids
Theoretical weight: 26.01 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
Sequence domains:
Structure domains:
Length: 229 amino acids
Theoretical weight: 26.01 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
- Canonical:
P01903 (Residues: 26-254; Coverage: 100%)
Sequence domains:
Structure domains:
HLA class II histocompatibility antigen, DRB1 beta chain
Molecule details ›
Chain: B
Length: 190 amino acids
Theoretical weight: 22.25 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
Sequence domains:
Structure domains:
Length: 190 amino acids
Theoretical weight: 22.25 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
- Canonical: P01911 (Residues: 30-219; Coverage: 80%)
Sequence domains:
Structure domains:
Capsid protein p24
Molecule details ›
Chain: C
Length: 20 amino acids
Theoretical weight: 2.53 KDa
Source organism: HIV-1 M:B_HXB2R
Expression system: Not provided
UniProt:
Length: 20 amino acids
Theoretical weight: 2.53 KDa
Source organism: HIV-1 M:B_HXB2R
Expression system: Not provided
UniProt:
- Canonical: P04585 (Residues: 293-312; Coverage: 1%)
