Annotations: 6E18

Crystal structure of Chlamydomonas reinhardtii HAP2 ectodomain provides structural insights of functional loops in green algae.

External Resource: Annotation

Domain Annotation: ECOD Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HAP2-GCS1	e6e18A2	A: alpha arrays	X: VSG (variant surface glycoprotein) N-terminal domain and haptoglobin-hemoglobin receptor	H: VSG (variant surface glycoprotein) N-terminal domain and haptoglobin-hemoglobin receptor	T: VSG (variant surface glycoprotein) N-terminal domain and haptoglobin-hemoglobin receptor	F: HAP2-GCS1	ECOD (v295)
A	HAP2-GCS1	e6e18A3	A: alpha arrays	X: P-loop domains-like	H: beta-helix of amnionless (AMN) extracellular domain	T: beta-helix of amnionless (AMN) extracellular domain	F: HAP2-GCS1	ECOD (v295)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Hapless 2	binding lipid binding	membrane organization establishment of protein localization cellular localization establishment of protein localization to membrane localization within membrane establishment of localization cellular component organization localization macromolecule localization cellular process cellular component organization or biogenesis intracellular protein localization protein insertion into membrane fusion of sperm to egg plasma membrane involved in single fertilization membrane organization establishment of protein localization cellular localization establishment of protein localization to membrane localization within membrane establishment of localization cellular component organization localization macromolecule localization cellular process cellular component organization or biogenesis intracellular protein localization protein insertion into membrane fusion of sperm to egg plasma membrane involved in single fertilization sexual reproduction reproductive process fertilization multicellular organismal reproductive process cellular process involved in reproduction in multicellular organism single fertilization	membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure vesicle membrane cytoplasmic vesicle organelle cytoplasm vesicle organelle membrane membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure vesicle membrane cytoplasmic vesicle organelle cytoplasm vesicle organelle membrane cell periphery plasma membrane cell projection plasma membrane region cell projection membrane plasma membrane bounded cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR040326	HAP2/GCS1	Family
A	IPR018928	HAP2 domain	Domain

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.