6ZWK | pdb_00006zwk

Crystal structure of the phosphorylated C-terminal tail of histone H2AX in complex with a specific nanobody (C6 gammaXbody)

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	Trypsin	e6zwkF1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin	ECOD (v294.1)
E	Lys	e6zwkE1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: Bromodomain	T: Bromodomain	F: Lys	ECOD (v294.1)
D	Trypsin	e6zwkD1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin	ECOD (v294.1)
C	Trypsin	e6zwkC1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin	ECOD (v294.1)
B	Trypsin	e6zwkB1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin	ECOD (v294.1)
A	Trypsin	e6zwkA1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A, B, C, D, E A, B, C, D, E, F	Heavy Chain	IGHV1	-	histone h2ax	SAbDab (2026-04-10)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G, H, I, J, K G, H, I, J, K, L	Histone H2AX	protein binding binding histone binding chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity protein heterodimerization activity protein dimerization activity DNA binding damaged DNA binding nucleic acid binding structural molecule activity structural constituent of chromatin enzyme binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation localization protein localization to chromosome protein localization to organelle macromolecule localization protein localization to site of double-strand break intracellular protein localization regulation of cellular process positive regulation of biological process regulation of cellular response to stress regulation of primary metabolic process positive regulation of response to stimulus nucleobase-containing compound metabolic process positive regulation of metabolic process positive regulation of DNA repair regulation of response to stress positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process DNA repair regulation of biological process biological regulation primary metabolic process DNA metabolic process regulation of macromolecule metabolic process nucleic acid metabolic process regulation of DNA repair positive regulation of DNA metabolic process regulation of response to stimulus metabolic process macromolecule metabolic process regulation of metabolic process regulation of DNA metabolic process protein-containing complex organization protein-DNA complex assembly cellular component organization protein-DNA complex organization cellular component biogenesis cellular component assembly chromatin organization protein-containing complex assembly chromatin remodeling cellular component organization or biogenesis nucleosome assembly nucleosome organization response to ionizing radiation response to radiation response to abiotic stimulus double-strand break repair DNA recombination recombinational repair double-strand break repair via homologous recombination negative regulation of biological process negative regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process heterochromatin formation epigenetic regulation of gene expression negative regulation of metabolic process heterochromatin organization gene expression macromolecule biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process meiotic cell cycle cell cycle DNA damage checkpoint signaling regulation of cell cycle phase transition signaling negative regulation of cell cycle cell cycle phase transition intracellular signal transduction cell communication negative regulation of cell cycle phase transition signal transduction regulation of cell cycle cell cycle process regulation of cell cycle process DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling signal transduction in response to DNA damage	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck ribonucleoprotein granule intracellular organelle nuclear body cellular anatomical structure nucleoplasm organelle lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck ribonucleoprotein granule intracellular organelle nuclear body cellular anatomical structure nucleoplasm organelle lumen organelle membraneless organelle supramolecular complex nuclear ribonucleoprotein granule nuclear lumen condensed nuclear chromosome nuclear chromosome chromosome condensed chromosome extracellular exosome extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle centrosome microtubule organizing center cytoskeleton microtubule cytoskeleton XY body sex chromosome protein-containing complex protein-DNA complex nucleosome chromatin replication fork male germ cell nucleus germ cell nucleus site of double-strand break site of DNA damage
A, B, C, D, E A, B, C, D, E, F	gammaXbody	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G, H, I, J, K G, H, I, J, K, L	IPR002119	Histone H2A	Family
G, H, I, J, K G, H, I, J, K, L	IPR007125	Core Histone H2A/H2B/H3 domain	Domain
G, H, I, J, K G, H, I, J, K, L	IPR032454	Histone H2A, C-terminal domain	Domain
G, H, I, J, K G, H, I, J, K, L	IPR032458	Histone H2A conserved site	Conserved Site
G, H, I, J, K G, H, I, J, K, L	IPR009072	Histone-fold	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
G, H, I, J, K G, H, I, J, K, L	Pharos: P16104	glioblastoma breast carcinoma Neoplasm Recurrence, Local polyploidy breast cancer giant cell glioblastoma ovarian cancer atopic eczema cancer ductal breast carcinoma in situ lung adenocarcinoma malignant mesothelioma non-small cell lung carcinoma pancreatic ductal adenocarcinoma psoriasis glioblastoma breast carcinoma Neoplasm Recurrence, Local polyploidy breast cancer giant cell glioblastoma ovarian cancer atopic eczema cancer ductal breast carcinoma in situ lung adenocarcinoma malignant mesothelioma non-small cell lung carcinoma pancreatic ductal adenocarcinoma psoriasis endometriosis heart disease lung cancer osteosarcoma pancreatic intraductal papillary-mucinous neoplasm schizophrenia invasive ductal breast carcinoma malignant ependymoma

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
G, H, I, J, K G, H, I, J, K, L	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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