3KLH | pdb_00003klh

Crystal structure of AZT-Resistant HIV-1 Reverse Transcriptase crosslinked to post-translocation AZTMP-Terminated DNA (COMPLEX P)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ribonuclease H-like	8075088	3000143	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	RVT_thumb	e3klhA7	A: alpha bundles	X: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	H: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	T: helical bundle domain in reverse transcriptase-like polymerases	F: RVT_thumb	ECOD (1.6)
A	RVT_1	e3klhA8	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: RVT_1	ECOD (1.6)
A	RNase_H	e3klhA6	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: RNase_H	ECOD (1.6)
A	RVT_connect	e3klhA5	A: mixed a+b and a/b	X: Ribonuclease H-like	H: RNaseH-like domain in reverse transcriptase (From Topology)	T: RNaseH-like domain in reverse transcriptase	F: RVT_connect	ECOD (1.6)
B	RVT_thumb	e3klhB1	A: alpha bundles	X: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	H: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	T: helical bundle domain in reverse transcriptase-like polymerases	F: RVT_thumb	ECOD (1.6)
B	RVT_1	e3klhB2	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: RVT_1	ECOD (1.6)
B	RVT_connect	e3klhB3	A: mixed a+b and a/b	X: Ribonuclease H-like	H: RNaseH-like domain in reverse transcriptase (From Topology)	T: RNaseH-like domain in reverse transcriptase	F: RVT_connect	ECOD (1.6)
C	C1-set_4	e3klhC2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
C	V-set	e3klhC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
D	C1-set_1	e3klhD2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
D	V-set_12	e3klhD1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.10.10	Alpha Beta	Roll	HIV Type 1 Reverse Transcriptase	Chain A, domain 1	CATH (4.3.0)
A	3.30.70.270	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Reverse transcriptase/Diguanylate cyclase domain	CATH (4.3.0)
A	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
B	3.10.10.10	Alpha Beta	Roll	HIV Type 1 Reverse Transcriptase	Chain A, domain 1	CATH (4.3.0)
B	3.30.70.270	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Reverse transcriptase/Diguanylate cyclase domain	CATH (4.3.0)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
C	Fab28, anti-HIV-1 RT p51 / HIV-1 RT p51_p66 AZTr_dsDNA P-site	L-KAPPA	Mus musculus (house mouse)	IGKV10-9401, IGKJ101, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202604-0)
D	Fab28, anti-HIV-1 RT p51 / HIV-1 RT p51_p66 AZTr_dsDNA P-site	VH-CH1	Mus musculus (house mouse)	IGHV8-1201, IGHV8-501, IGHJ401, IGHG102	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202604-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C	Light Chain	IGKV10	Kappa	p51 rt	SAbDab (2026-02-06)
D	Heavy Chain	IGHV8	-	p51 rt	SAbDab (2026-02-06)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Reverse transcriptase/ribonuclease H	catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exoribonuclease H activity exonuclease activity catalytic activity catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exoribonuclease H activity exonuclease activity catalytic activity catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity transferase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding RNA-directed DNA polymerase activity RNA binding RNA stem-loop binding aspartic-type peptidase activity peptidase activity catalytic activity, acting on a protein aspartic-type endopeptidase activity endopeptidase activity lipid binding endonuclease activity RNA endonuclease activity producing 5'-phosphomonoesters, hydrolytic mechanism RNA-DNA hybrid ribonuclease activity RNA endonuclease activity structural molecule activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host gene expression biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated perturbation of host gene expression modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell viral process symbiont entry into host viral life cycle viral genome integration into host DNA viral penetration into host nucleus symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host gene expression biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated perturbation of host gene expression modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell viral process symbiont entry into host viral life cycle viral genome integration into host DNA viral penetration into host nucleus intracellular transport of virus transport of virus nucleobase-containing compound metabolic process metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process DNA integration nucleic acid metabolic process establishment of integrated proviral latency viral latency establishment of viral latency viral gene expression viral translational frameshifting viral translation DNA recombination regulation of biological process symbiont-mediated activation of host programmed cell death regulation of cellular process symbiont-mediated activation of host apoptosis symbiont-mediated perturbation of host programmed cell death biological regulation regulation of killing of cells of another organism disruption of cell in another organism regulation of cell killing symbiont-mediated perturbation of host apoptosis disruption of anatomical structure in another organism symbiont-mediated killing of host cell killing of cells of another organism cell killing proteolysis protein metabolic process	host intracellular membrane-bounded organelle host cellular component host intracellular part host multivesicular body other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host cell late endosome host cell endosome host intracellular region viral nucleocapsid host intracellular membrane-bounded organelle host cellular component host intracellular part host multivesicular body other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host cell late endosome host cell endosome host intracellular region viral nucleocapsid viral capsid virion component host cell plasma membrane host cell membrane host cell virion membrane host cell nucleus
B	p51 RT	catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exoribonuclease H activity exonuclease activity catalytic activity catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exoribonuclease H activity exonuclease activity catalytic activity catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity transferase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding RNA-directed DNA polymerase activity RNA binding RNA stem-loop binding aspartic-type peptidase activity peptidase activity catalytic activity, acting on a protein aspartic-type endopeptidase activity endopeptidase activity lipid binding endonuclease activity RNA endonuclease activity producing 5'-phosphomonoesters, hydrolytic mechanism RNA-DNA hybrid ribonuclease activity RNA endonuclease activity structural molecule activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host gene expression biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated perturbation of host gene expression modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell viral process symbiont entry into host viral life cycle viral genome integration into host DNA viral penetration into host nucleus symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host gene expression biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated perturbation of host gene expression modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell viral process symbiont entry into host viral life cycle viral genome integration into host DNA viral penetration into host nucleus intracellular transport of virus transport of virus nucleobase-containing compound metabolic process metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process DNA integration nucleic acid metabolic process establishment of integrated proviral latency viral latency establishment of viral latency viral gene expression viral translational frameshifting viral translation DNA recombination regulation of biological process symbiont-mediated activation of host programmed cell death regulation of cellular process symbiont-mediated activation of host apoptosis symbiont-mediated perturbation of host programmed cell death biological regulation regulation of killing of cells of another organism disruption of cell in another organism regulation of cell killing symbiont-mediated perturbation of host apoptosis disruption of anatomical structure in another organism symbiont-mediated killing of host cell killing of cells of another organism cell killing proteolysis protein metabolic process	host intracellular membrane-bounded organelle host cellular component host intracellular part host multivesicular body other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host cell late endosome host cell endosome host intracellular region viral nucleocapsid host intracellular membrane-bounded organelle host cellular component host intracellular part host multivesicular body other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host cell late endosome host cell endosome host intracellular region viral nucleocapsid viral capsid virion component host cell plasma membrane host cell membrane host cell virion membrane host cell nucleus
C	monoclonal antibody, heavy chain	-	-	-
D	monoclonal antibody, light chain	-	-	-
E	DNA (5'-D(APTGPCPTPAPGPGPCPGPCPCPCPGPAPAPCPAPGPGPGPAPCPTPGPTP*G)-3')	-	-	-
F	DNA (5'-D(APCPAPGPTPCPCPCPTPGPTPTPCPGPGP(MRG)PCPGPCPCP*(ATM))-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A	IPR001995	Peptidase A2A, retrovirus, catalytic	Domain
A	IPR001878	Zinc finger, CCHC-type	Domain
A	IPR008919	Retrovirus capsid, N-terminal	Homologous Superfamily
A	IPR012344	Matrix protein, lentiviral and alpha-retroviral, N-terminal	Homologous Superfamily
A	IPR036862	Integrase, C-terminal domain superfamily, retroviral	Homologous Superfamily
A	IPR018061	Retropepsins	Domain
A	IPR010661	Reverse transcriptase thumb	Domain
A	IPR002156	Ribonuclease H domain	Domain
A	IPR036875	Zinc finger, CCHC-type superfamily	Homologous Superfamily
A	IPR003308	Integrase, N-terminal zinc-binding domain	Domain
A	IPR001584	Integrase, catalytic core	Domain
A	IPR045345	Retroviral nucleocapsid Gag protein p24, C-terminal domain	Domain
A	IPR010999	Retroviral matrix protein	Homologous Superfamily
A	IPR021109	Aspartic peptidase domain superfamily	Homologous Superfamily
A	IPR001969	Aspartic peptidase, active site	Active Site
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
A	IPR017856	Integrase-like, N-terminal	Homologous Superfamily
A	IPR000071	Immunodeficiency lentiviral matrix, N-terminal	Domain
A	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A	IPR001037	Integrase, C-terminal, retroviral	Domain
A	IPR034170	Retropepsin-like catalytic domain	Domain
A	IPR000477	Reverse transcriptase domain	Domain
A	IPR010659	Reverse transcriptase connection	Domain
A	IPR008916	Retrovirus capsid, C-terminal	Homologous Superfamily
B	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
B	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
B	IPR001995	Peptidase A2A, retrovirus, catalytic	Domain
B	IPR001878	Zinc finger, CCHC-type	Domain
B	IPR008919	Retrovirus capsid, N-terminal	Homologous Superfamily
B	IPR012344	Matrix protein, lentiviral and alpha-retroviral, N-terminal	Homologous Superfamily
B	IPR036862	Integrase, C-terminal domain superfamily, retroviral	Homologous Superfamily
B	IPR018061	Retropepsins	Domain
B	IPR010661	Reverse transcriptase thumb	Domain
B	IPR002156	Ribonuclease H domain	Domain
B	IPR036875	Zinc finger, CCHC-type superfamily	Homologous Superfamily
B	IPR003308	Integrase, N-terminal zinc-binding domain	Domain
B	IPR001584	Integrase, catalytic core	Domain
B	IPR045345	Retroviral nucleocapsid Gag protein p24, C-terminal domain	Domain
B	IPR010999	Retroviral matrix protein	Homologous Superfamily
B	IPR021109	Aspartic peptidase domain superfamily	Homologous Superfamily
B	IPR001969	Aspartic peptidase, active site	Active Site
B	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
B	IPR017856	Integrase-like, N-terminal	Homologous Superfamily
B	IPR000071	Immunodeficiency lentiviral matrix, N-terminal	Domain
B	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
B	IPR001037	Integrase, C-terminal, retroviral	Domain
B	IPR034170	Retropepsin-like catalytic domain	Domain
B	IPR000477	Reverse transcriptase domain	Domain
B	IPR010659	Reverse transcriptase connection	Domain
B	IPR008916	Retrovirus capsid, C-terminal	Homologous Superfamily