Q9UL51 (HCN2_HUMAN) Homo sapiens (Human)

Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 2 UniProtKBInterProSTRINGInteractive Modelling

889 aa; Sequence (Fasta)

Sequence Features

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 418L -> V (de novo variant found in a patient with childhood apraxia of speech; unknown pathological significance) VAR_081530
 527R -> Q (in dbSNP:rs55687900) VAR_061106 dbSNP
 216-236Helical; Name=Segment S1
 241-261Helical; Name=Segment S2
 289-309Helical; Name=Segment S3
 318-338Helical; Voltage-sensor; Name=Segment S4
 370-390Helical; Name=Segment S5
 414-435Pore-forming; Name=Segment H5
 441-461Helical; Name=Segment S6
 608-611cAMP
 618-619cAMP
 659-662cAMP
 168-210Ion transport N-terminal
IPR013621PF08412
 212-471Ion transport domain
IPR005821PF00520
 563-645Cyclic nucleotide-binding domain
IPR000595PF00027

Sequence Alignments

Experimental structures

DescriptionOligo-stateLigandsStructureRange
Tetramerization dynamics of the C-terminus underlies isoform-specific cAMP-gating in HCN channelshomo-4-mer CMP;3u10470-671
Assess
Solution structure human HCN2 CNBD in the cAMP-unbound statemonomer 2mpf534-672
Assess

Homology models

Oligo-stateQMEANTemplateRangeSeq id (%)Ligands
homo-4-mer -2.23 6uqf.1.A163-725
79.57CMP;
Assess
monomer -2.67 4cyd.1.B536-740
20.00
Assess