Annotations: 2HKF

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth L]	C1-set_4	e2hkfL2	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)
A [auth L]	V-set	e2hkfL1	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)
B [auth H]	V-set_8	e2hkfH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
B [auth H]	C1-set_1	e2hkfH2	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth H]	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
A [auth L]	Fab M75	L-KAPPA	Mus musculus (house mouse)	IGKV1-11001, IGKJ401, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-2B_KAPPA	IMGT (202442-0)
B [auth H]	Fab M75	VH-CH1	Mus musculus (house mouse)	IGHV10-102, IGHJ301, IGHG2B*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2B_KAPPA	IMGT (202442-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth L]	Light Chain	IGKV1	Kappa	carbonic anhydrase 9	SAbDab (2024-10-25)
B [auth H]	Heavy Chain	IGHV10	-	carbonic anhydrase 9	SAbDab (2024-10-25)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth L]	Immunoglobulin Light chain Fab fragment	-	-	-
B [auth H]	Immunoglobulin Heavy chain Fab fragment	-	-	-
C [auth P]	Carbonic anhydrase 9	molecular function activator activity molecular function regulator activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding carbonate dehydratase activity hydro-lyase activity lyase activity catalytic activity carbon-oxygen lyase activity	response to stimulus response to chemical response to xenobiotic stimulus localization secretion transport establishment of localization cellular metabolic process small molecule metabolic process metabolic process cellular process one-carbon metabolic process developmental process tissue morphogenesis response to stimulus response to chemical response to xenobiotic stimulus localization secretion transport establishment of localization cellular metabolic process small molecule metabolic process metabolic process cellular process one-carbon metabolic process developmental process tissue morphogenesis anatomical structure morphogenesis epithelium development anatomical structure development morphogenesis of an epithelium tissue development response to decreased oxygen levels response to hypoxia response to stress response to oxygen levels response to abiotic stimulus response to ketone response to lipid response to oxygen-containing compound response to testosterone response to organic cyclic compound	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane plasma membrane plasma membrane bounded cell projection cell periphery cell projection actin-based cell projection plasma membrane region microvillus microvillus membrane cell projection membrane basal part of cell basal plasma membrane basolateral plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth P]	IPR018338	Carbonic anhydrase, alpha-class, conserved site	Conserved Site
C [auth P]	IPR001148	Alpha carbonic anhydrase domain	Domain
C [auth P]	IPR036398	Alpha carbonic anhydrase domain superfamily	Homologous Superfamily
C [auth P]	IPR023561	Carbonic anhydrase, alpha-class	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth P]	Pharos: Q16790	chronic myelogenous leukemia, BCR-ABL1 positive Anaplasia pulmonary hypertension psoriasis malignant colon neoplasm malignant pancreatic neoplasm pancreatic intraductal papillary-mucinous neoplasm breast ductal adenocarcinoma ductal breast carcinoma in situ malignant ependymoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia ulcerative colitis cancer kidney disease chronic myelogenous leukemia, BCR-ABL1 positive Anaplasia pulmonary hypertension psoriasis malignant colon neoplasm malignant pancreatic neoplasm pancreatic intraductal papillary-mucinous neoplasm breast ductal adenocarcinoma ductal breast carcinoma in situ malignant ependymoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia ulcerative colitis cancer kidney disease malignant mesothelioma

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.