Annotations: 6YTK

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T	PF14798	Calcium homeostasis modulator (Ca_hom_mod)	Calcium homeostasis modulator	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T	Calcium homeostasis modulator protein 4	monoatomic cation transmembrane transporter activity monoatomic cation channel activity passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	ATP transport nitrogen compound transport organic anion transport nucleotide transport transport purine ribonucleotide transport carbohydrate derivative transport establishment of localization purine nucleotide transport adenine nucleotide transport localization ATP export nucleobase-containing compound transport organophosphate ester transport	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T	IPR029569	Calcium homeostasis modulator family	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T	Pharos: Q5JW98	nephrotic syndrome ulcerative colitis

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T	OPM	Transmembrane	Alpha-helical polytopic	Tetraspan junctional complexes	Calcium homeostasis modulator CALHM

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Gap Junctions and Related Channels	Calcium homeostasis modulator (CALHM4), decameric in absence of Ca²⁺

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.