ATP8B1
ATPase phospholipid transporting 8B1 | ATPIC, PFIC, BRIC, FIC1, PFIC1

This gene encodes a member of the P-type cation transport ATPase family, which belongs to the subfamily of aminophospholipid-transporting ATPases. The aminophospholipid translocases transport phosphatidylserine and phosphatidylethanolamine from one side of a bilayer to another. Mutations in this gene may result in progressive familial intrahepatic cholestasis type 1 and in benign recurrent intrahepatic cholestasis. [provided by RefSeq, Jul 2008]

Member of: DE-2 DE-2.46 Developmental clusters: GC7
Biological processes 53 terms
ATP binding (GO:0005524)ATP hydrolysis activity (GO:0016887)ATPase-coupled intramembrane lipid carrier activity (GO:0140326)ATPase-coupled intramembrane lipid carrier activity (GO:0140326)ATPase-coupled intramembrane lipid carrier activity (GO:0140326)Golgi apparatus (GO:0005794)Golgi apparatus (GO:0005794)Golgi organization (GO:0007030)aminophospholipid flippase activity (GO:0015247)aminophospholipid translocation (GO:0140331)aminophospholipid transport (GO:0015917)apical plasma membrane (GO:0016324)apical plasma membrane (GO:0016324)apical protein localization (GO:0045176)bile acid and bile salt transport (GO:0015721)bile acid and bile salt transport (GO:0015721)cardiolipin binding (GO:1901612)endomembrane system (GO:0012505)endoplasmic reticulum (GO:0005783)endoplasmic reticulum (GO:0005783)flippase activity (GO:0140327)inner ear receptor cell development (GO:0060119)lipid carrier activity (GO:0005319)magnesium ion binding (GO:0000287)membrane (GO:0016020)monoatomic ion transmembrane transport (GO:0034220)negative regulation of DNA-templated transcription (GO:0045892)nucleotide binding (GO:0000166)organic anion transport (GO:0015711)phosphatidylcholine flippase activity (GO:0140345)phosphatidylcholine floppase activity (GO:0090554)phosphatidylserine flippase activity (GO:0140346)phosphatidylserine floppase activity (GO:0090556)phospholipid translocation (GO:0045332)phospholipid translocation (GO:0045332)phospholipid translocation (GO:0045332)phospholipid translocation (GO:0045332)phospholipid transport (GO:0015914)phospholipid-translocating ATPase complex (GO:1990531)plasma membrane (GO:0005886)plasma membrane (GO:0005886)plasma membrane (GO:0005886)plasma membrane (GO:0005886)plasma membrane (GO:0005886)protein binding (GO:0005515)regulation of chloride transport (GO:2001225)regulation of microvillus assembly (GO:0032534)regulation of plasma membrane organization (GO:1903729)sensory perception of sound (GO:0007605)stereocilium (GO:0032420)trans-Golgi network (GO:0005802)vestibulocochlear nerve formation (GO:0021650)xenobiotic transmembrane transport (GO:0006855)
Expression (TPM)
ATP8B1 — as a Regulated Gene

TFs regulating ATP8B1 0 TFs

Transcription factors with Perturb-seq knockdown data for ATP8B1. The Binding column indicates whether any binding evidence exists for this TF–gene pair (ChIP-seq or motif footprint peaks). The Mean coef is the average Perturb-seq regression coefficient across active gRNAs (positive = ATP8B1 upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.

Data: Effect:
TF Mean coef Binding Outlier TF→Gene link

Elements linked to ATP8B1

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of ATP8B1, linked by TSS proximity or chromatin conformation (Multiome / HiCAR). Each element overlaps at least one TF ChIP-seq binding site — the TFs column shows how many distinct TFs bind that element.

Accessibility Element Dist. to TSS Link type TFs
chr18:57,586,255–57,586,993 216.7 kb Distal (>10kb) Multiome 659
chr18:57,621,352–57,622,282 181.4 kb Distal (>10kb) Multiome 848
chr18:57,629,956–57,630,747 173.0 kb Distal (>10kb) Multiome HiCAR 808
chr18:57,696,040–57,696,825 106.9 kb Distal (>10kb) Multiome 32
chr18:57,696,903–57,697,716 105.9 kb Distal (>10kb) Multiome 39
chr18:57,698,529–57,699,223 104.6 kb Distal (>10kb) Multiome 219
chr18:57,797,314–57,797,787 5.8 kb Proximal (<10kb) Multiome 429
chr18:57,802,264–57,804,080 83 bp At TSS Multiome 584
chr18:57,807,603–57,807,786 4.3 kb Proximal (<10kb) 58
chr18:57,856,110–57,857,036 53.3 kb Distal (>10kb) Multiome 51
chr18:58,043,399–58,045,466 240.7 kb Distal (>10kb) Multiome 759

Genome Browser

Genomic view of the ATP8B1 locus showing ATAC-seq accessibility and RNA-seq expression across the ESC → DE time course, together with TF binding peaks and element-to-TSS loop connections.

chr18:57,576,255 – 58,055,466
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq