Integrase
Retroviral integrase (IN) is an enzyme produced by a retrovirus (such as HIV) that integrates (forms covalent links between) its genetic information into that of the host cell it infects. Retroviral INs are not to be confused with phage integrases (recombinases) used in biotechnology, such as λ phage integrase, as discussed in site-specific recombination.
| Integrase Zinc binding domain | |||||||||
|---|---|---|---|---|---|---|---|---|---|
solution structure of the n-terminal zn binding domain of hiv-1 integrase (e form), nmr, 38 structures | |||||||||
| Identifiers | |||||||||
| Symbol | Integrase_Zn | ||||||||
| Pfam | PF02022 | ||||||||
| InterPro | IPR003308 | ||||||||
| SCOP2 | 1wjb / SCOPe / SUPFAM | ||||||||
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| Integrase core domain | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Crystal structure of the RSV two-domain integrase. | |||||||||
| Identifiers | |||||||||
| Symbol | rve | ||||||||
| Pfam | PF00665 | ||||||||
| Pfam clan | CL0219 | ||||||||
| InterPro | IPR001584 | ||||||||
| SCOP2 | 2itg / SCOPe / SUPFAM | ||||||||
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| Integrase DNA binding domain | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Crystal structure of the RSV two-domain integrase. | |||||||||
| Identifiers | |||||||||
| Symbol | IN_DBD_C | ||||||||
| Pfam | PF00552 | ||||||||
| InterPro | IPR001037 | ||||||||
| SCOP2 | 1ihw / SCOPe / SUPFAM | ||||||||
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The macromolecular complex of an IN macromolecule bound to the ends of the viral DNA ends has been referred to as the intasome; IN is a key component in this and the retroviral pre-integration complex.
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