BAAT
gene geneOn this page
Also known as BATBACAT
Summary
BAAT (bile acid-CoA:amino acid N-acyltransferase, HGNC:932) is a protein-coding gene on chromosome 9q31.1, encoding Bile acid-CoA:amino acid N-acyltransferase (Q14032). Catalyzes the amidation of bile acids (BAs) with the amino acids taurine and glycine.
The protein encoded by this gene is a liver enzyme that catalyzes the transfer of C24 bile acids from the acyl-CoA thioester to either glycine or taurine, the second step in the formation of bile acid-amino acid conjugates. The bile acid conjugates then act as a detergent in the gastrointestinal tract, which enhances lipid and fat-soluble vitamin absorption. Defects in this gene are a cause of familial hypercholanemia (FHCA). Two transcript variants encoding the same protein have been found for this gene.
Source: NCBI Gene 570 — RefSeq curated summary.
At a glance
- Gene–disease (curated): hypercholanemia, familial 1 (Strong, GenCC) — +3 more curated relationships
- Clinical variants (ClinVar): 209 total — 5 pathogenic, 1 likely-pathogenic
- Phenotypes (HPO): 11
- MANE Select transcript:
NM_001701
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:932 |
| Approved symbol | BAAT |
| Name | bile acid-CoA:amino acid N-acyltransferase |
| Location | 9q31.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | BAT, BACAT |
| Ensembl gene | ENSG00000136881 |
| Ensembl biotype | protein_coding |
| OMIM | 602938 |
| Entrez | 570 |
Gene structure
Transcript identifiers
Ensembl transcripts: 18 — 16 protein_coding, 2 nonsense_mediated_decay
ENST00000259407, ENST00000395051, ENST00000674556, ENST00000674791, ENST00000674909, ENST00000904170, ENST00000904171, ENST00000904172, ENST00000904173, ENST00000904174, ENST00000904175, ENST00000904176, ENST00000904177, ENST00000904178, ENST00000904179, ENST00000904180, ENST00000904181, ENST00000904182
RefSeq mRNA: 3 — MANE Select: NM_001701
NM_001127610, NM_001374715, NM_001701
CCDS: CCDS6752
Canonical transcript exons
ENST00000259407 — 4 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000926593 | 101368120 | 101368322 |
| ENSE00001022933 | 101360417 | 101363015 |
| ENSE00001671567 | 101370939 | 101371463 |
| ENSE00003902194 | 101384855 | 101385006 |
Expression profiles
Bgee: expression breadth ubiquitous, 105 present calls, max score 98.11.
FANTOM5 (CAGE): breadth tissue_specific, TPM avg 0.9917 / max 338.6330, expressed in 31 samples.
FANTOM5 promoters (4 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 101737 | 0.8300 | 21 |
| 101735 | 0.0855 | 14 |
| 101736 | 0.0491 | 12 |
| 101734 | 0.0272 | 11 |
Top tissues by expression
123 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| liver | UBERON:0002107 | 98.11 | gold quality |
| right lobe of liver | UBERON:0001114 | 97.89 | gold quality |
| gall bladder | UBERON:0002110 | 89.49 | gold quality |
| islet of Langerhans | UBERON:0000006 | 74.76 | gold quality |
| quadriceps femoris | UBERON:0001377 | 73.05 | gold quality |
| cerebellar vermis | UBERON:0004720 | 70.49 | gold quality |
| superior frontal gyrus | UBERON:0002661 | 69.08 | gold quality |
| primary visual cortex | UBERON:0002436 | 67.02 | gold quality |
| gastrocnemius | UBERON:0001388 | 66.47 | gold quality |
| muscle of leg | UBERON:0001383 | 65.41 | gold quality |
| Brodmann (1909) area 9 | UBERON:0013540 | 65.21 | gold quality |
| skeletal muscle organ | UBERON:0014892 | 65.15 | gold quality |
| dorsolateral prefrontal cortex | UBERON:0009834 | 65.01 | gold quality |
| pancreas | UBERON:0001264 | 64.63 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 64.34 | gold quality |
| prefrontal cortex | UBERON:0000451 | 63.80 | gold quality |
| frontal cortex | UBERON:0001870 | 63.62 | gold quality |
| cerebral cortex | UBERON:0000956 | 62.98 | gold quality |
| right frontal lobe | UBERON:0002810 | 62.74 | gold quality |
| anterior cingulate cortex | UBERON:0009835 | 62.67 | gold quality |
| cerebellum | UBERON:0002037 | 62.29 | gold quality |
| cerebellar cortex | UBERON:0002129 | 62.28 | gold quality |
| cerebellar hemisphere | UBERON:0002245 | 62.19 | gold quality |
| cortical plate | UBERON:0005343 | 61.90 | gold quality |
| putamen | UBERON:0001874 | 60.80 | gold quality |
| right hemisphere of cerebellum | UBERON:0014890 | 60.20 | gold quality |
| nucleus accumbens | UBERON:0001882 | 59.98 | gold quality |
| body of pancreas | UBERON:0001150 | 59.47 | gold quality |
| brain | UBERON:0000955 | 59.43 | gold quality |
| caudate nucleus | UBERON:0001873 | 59.08 | gold quality |
Single-cell (SCXA)
Detected in 2 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-HCAD-9 | yes | 53.64 |
| E-ANND-3 | no | 2.62 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): HNF4A
miRNA regulators (miRDB)
98 targeting BAAT, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-340-5P | 100.00 | 72.50 | 4437 |
| HSA-MIR-6867-5P | 100.00 | 82.21 | 3464 |
| HSA-MIR-5692A | 100.00 | 74.40 | 6850 |
| HSA-MIR-3662 | 99.99 | 73.82 | 5684 |
| HSA-MIR-4531 | 99.99 | 69.70 | 3181 |
| HSA-MIR-4534 | 99.99 | 66.58 | 1907 |
| HSA-MIR-6870-5P | 99.99 | 68.55 | 2115 |
| HSA-MIR-548AW | 99.99 | 72.57 | 3559 |
| HSA-MIR-4775 | 99.98 | 75.00 | 6394 |
| HSA-MIR-548P | 99.98 | 72.25 | 3784 |
| HSA-MIR-4482-3P | 99.98 | 72.50 | 3147 |
| HSA-MIR-485-3P | 99.98 | 70.68 | 1585 |
| HSA-MIR-539-3P | 99.98 | 70.74 | 1616 |
| HSA-MIR-8075 | 99.97 | 67.20 | 962 |
| HSA-MIR-4723-5P | 99.97 | 68.70 | 2034 |
| HSA-MIR-5698 | 99.97 | 68.49 | 2029 |
| HSA-MIR-7111-5P | 99.97 | 68.48 | 2062 |
| HSA-MIR-590-3P | 99.96 | 74.34 | 6478 |
| HSA-MIR-6825-5P | 99.96 | 69.81 | 3431 |
| HSA-MIR-5688 | 99.96 | 73.23 | 4504 |
| HSA-MIR-495-3P | 99.96 | 72.81 | 4197 |
| HSA-MIR-570-3P | 99.96 | 72.41 | 4910 |
| HSA-MIR-8082 | 99.95 | 67.27 | 1170 |
| HSA-MIR-5195-3P | 99.92 | 70.92 | 1877 |
| HSA-MIR-145-5P | 99.92 | 71.13 | 1836 |
| HSA-MIR-30A-3P | 99.87 | 69.74 | 2928 |
| HSA-MIR-30D-3P | 99.87 | 69.92 | 2917 |
| HSA-MIR-30E-3P | 99.87 | 69.68 | 2942 |
| HSA-MIR-659-3P | 99.85 | 70.69 | 1620 |
| HSA-MIR-5010-3P | 99.83 | 70.60 | 2357 |
Literature-anchored findings (GeneRIF, showing 9)
- there is an essential catalytic triad within hBAT consisting of Cys-235, His-362, and Asp-328 with Cys-235 serving as the probable nucleophile and thus the site of covalent attachment of the bile acid molecule (PMID:12239217)
- Familial hypercholanemia in Amish individuals is associated with mutations in tight junction protein 2 (encoded by TJP2, also known as ZO-2) and bile acid Coenzyme A: amino acid N-acyltransferase (encoded by BAAT). (PMID:12704386)
- cytosolic BACAT enzyme may play important roles in protection against toxicity by accumulation of unconjugated bile acids and non-esterified very long-chain fatty acids (PMID:12810727)
- hBAAT and rBaat are peroxisomal enzymes present in undetectable amounts in the cytosol. Unconjugated or deconjugated bile salts returning to the liver need to shuttle through the peroxisome before reentering the enterohepatic circulation. (PMID:17256745)
- identification of 3 novel SNPs, 147C>T in exon 2 (silent), 602G>C in exon 3 (Arg201Pro) & 1134C>T in exon 4 (silent), in the BAAT gene by resequencing the entire coding region and the exon-intron junctions of 100 Japanese individuals (PMID:17495420)
- Data show that dose-response inactivation by 4HNE (4-hydroxynonenal) of hBAT (human bile acid CoA:amino acid N-acyltransferase) and CKBB (cytosolic brain isoform of creatine kinase) is associated with site-specific modifications. (PMID:18793185)
- Case Report: mmunostaining may facilitate diagnosis in bile-acid amidation defects in bile acid-CoA: amino acid N-acyltransferase deficiency. (PMID:22783059)
- BAAT polymorphisms might not be associated with anti-tuberculosis drug-induced hepatotoxicity in the Chinese population (PMID:27155186)
- These results indicate that even small changes in the carboxy terminus of BAAT can have significant effects on activity and substrate specificity (PMID:27230263)
Cross-species orthologs
6 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| mus_musculus | Baat | ENSMUSG00000039653 |
| rattus_norvegicus | Baat | ENSRNOG00000007395 |
| caenorhabditis_elegans | C31H5.6 | WBGENE00007857 |
| caenorhabditis_elegans | WBGENE00019404 | |
| caenorhabditis_elegans | T05E7.1 | WBGENE00020258 |
| caenorhabditis_elegans | W03D8.8 | WBGENE00020989 |
Paralogs (4): ACOT2 (ENSG00000119673), ACOT4 (ENSG00000177465), ACOT1 (ENSG00000184227), ACOT6 (ENSG00000205669)
Protein
Protein identifiers
Bile acid-CoA:amino acid N-acyltransferase — Q14032 (reviewed: Q14032)
Alternative names: Bile acid-CoA thioesterase, Choloyl-CoA hydrolase, Glycine N-choloyltransferase, Long-chain fatty-acyl-CoA hydrolase
All UniProt accessions (3): A0A6Q8PF60, A0A6Q8PHR9, Q14032
UniProt curated annotations — full annotation on UniProt →
Function. Catalyzes the amidation of bile acids (BAs) with the amino acids taurine and glycine. More than 95% of the BAs are N-acyl amidates with glycine and taurine. Amidation of BAs in the liver with glycine or taurine prior to their excretion into bile is an important biochemical event in bile acid metabolism. This conjugation (or amidation) plays several important biological roles in that it promotes the secretion of BAs and cholesterol into bile and increases the detergent properties of BAs in the intestine, which facilitates lipid and vitamin absorption. May also act as an acyl-CoA thioesterase that regulates intracellular levels of free fatty acids. In vitro, catalyzes the hydrolysis of long- and very long-chain saturated acyl-CoAs to the free fatty acid and coenzyme A (CoASH), and conjugates glycine to these acyl-CoAs.
Subunit / interactions. Monomer.
Subcellular location. Cytoplasm. Cytosol. Peroxisome.
Tissue specificity. Expressed in the gallbladder mucosa and pancreas. Expressed in hepatocytes (at protein level).
Disease relevance. Hypercholanemia, familial 3 (FHCA3) [MIM:619232] An autosomal recessive metabolic disorder characterized by reduced biliary secretion of conjugated bile acids, fat malabsorption, and fat-soluble vitamin deficiency. Clinical manifestations include rickets with variable growth failure due to vitamin D deficiency, and coagulopathy due to deficiency of vitamin K-dependent clotting factors. Additional variable features include pruritis, anemia, hepatomegaly, and bile duct proliferation on liver biopsy. Laboratory studies show abnormally increased levels of unconjugated bile acids. The disease is caused by variants affecting the gene represented in this entry.
Similarity. Belongs to the C/M/P thioester hydrolase family.
RefSeq proteins (3): NP_001121082, NP_001361644, NP_001692* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR006862 | Thio_Ohase/aa_AcTrfase | Domain |
| IPR014940 | BAAT_C | Domain |
| IPR016662 | Acyl-CoA_thioEstase_long-chain | Family |
| IPR029058 | AB_hydrolase_fold | Homologous_superfamily |
| IPR042490 | Thio_Ohase/BAAT_N | Homologous_superfamily |
Pfam: PF04775, PF08840
Enzyme classification (BRENDA):
- EC 2.3.1.65 — bile acid-CoA:amino acid N-acyltransferase (BRENDA: 9 organisms, 82 substrates, 21 inhibitors, 34 Km, 1 kcat entries)
Substrate kinetics (BRENDA)
7 substrates with measured Km, best-characterized 7. Km ranges are aggregated across organisms/conditions.
| Substrate | Km (mM) | Measurements |
|---|---|---|
| TAURINE | 0.6–6.7 | 11 |
| GLYCINE | 2.14–40 | 10 |
| CHOLOYL-COA | 0.0072–0.185 | 6 |
| 2-FLUORO-BETA-ALANINE | 2 | 1 |
| AMINOMETHANESULFONATE | 0.8 | 1 |
| AMINOMETHANESULFONIC ACID | 2 | 1 |
| BETA-ALANINE | 175 | 1 |
Catalyzed reactions (Rhea), 12 shown:
- choloyl-CoA + glycine = glycocholate + CoA + H(+) (RHEA:14001)
- choloyl-CoA + H2O = cholate + CoA + H(+) (RHEA:14541)
- hexadecanoyl-CoA + H2O = hexadecanoate + CoA + H(+) (RHEA:16645)
- dodecanoyl-CoA + H2O = dodecanoate + CoA + H(+) (RHEA:30135)
- octadecanoyl-CoA + H2O = octadecanoate + CoA + H(+) (RHEA:30139)
- chenodeoxycholoyl-CoA + H2O = chenodeoxycholate + CoA + H(+) (RHEA:31511)
- tetradecanoyl-CoA + H2O = tetradecanoate + CoA + H(+) (RHEA:40119)
- eicosanoyl-CoA + H2O = eicosanoate + CoA + H(+) (RHEA:40147)
- docosanoyl-CoA + H2O = docosanoate + CoA + H(+) (RHEA:40783)
- tetracosanoyl-CoA + H2O = tetracosanoate + CoA + H(+) (RHEA:40787)
- hexacosanoyl-CoA + H2O = hexacosanoate + CoA + H(+) (RHEA:40791)
- choloyl-CoA + taurine = taurocholate + CoA + H(+) (RHEA:47100)
UniProt features (19 total): mutagenesis site 7, sequence variant 6, active site 3, modified residue 2, chain 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q14032-F1 | 95.31 | 0.92 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Catalytic / active sites (3): 235 (charge relay system); 328 (charge relay system); 362 (charge relay system)
Post-translational modifications (2): 125, 416
Mutagenesis-validated functional residues (7):
| Position | Phenotype |
|---|---|
| 235 | abolishes n-acyltransferase activity. |
| 235 | lowers n-acyltransferase activity; enhanced thioesterase activity presumably dependent on the formation of a bile acid-e |
| 328 | abolishes n-acyltransferase activity. |
| 362 | abolishes n-acyltransferase activity. |
| 372 | retains n-acyltransferase activity. |
| 417 | translocation to peroxisomes. |
Function
Pathways and Gene Ontology
Reactome pathways
9 pathways
| ID | Pathway |
|---|---|
| R-HSA-159418 | Recycling of bile acids and salts |
| R-HSA-193368 | Synthesis of bile acids and bile salts via 7alpha-hydroxycholesterol |
| R-HSA-9033241 | Peroxisomal protein import |
| R-HSA-1430728 | Metabolism |
| R-HSA-192105 | Synthesis of bile acids and bile salts |
| R-HSA-194068 | Bile acid and bile salt metabolism |
| R-HSA-556833 | Metabolism of lipids |
| R-HSA-8957322 | Metabolism of steroids |
| R-HSA-9609507 | Protein localization |
MSigDB gene sets: 238 (showing top):
GSE45365_NK_CELL_VS_BCELL_DN, MODULE_172, GOBP_HEPATICOBILIARY_SYSTEM_DEVELOPMENT, GOBP_ALPHA_AMINO_ACID_METABOLIC_PROCESS, GOBP_REGENERATION, MODULE_335, GOBP_ORGANOPHOSPHATE_METABOLIC_PROCESS, GOBP_MONOCARBOXYLIC_ACID_METABOLIC_PROCESS, LEE_LIVER_CANCER_CIPROFIBRATE_DN, KEGG_BIOSYNTHESIS_OF_UNSATURATED_FATTY_ACIDS, GOBP_ORGANIC_ACID_BIOSYNTHETIC_PROCESS, GOBP_NUCLEOBASE_CONTAINING_SMALL_MOLECULE_METABOLIC_PROCESS, GOBP_BILE_ACID_BIOSYNTHETIC_PROCESS, GOBP_SMALL_MOLECULE_BIOSYNTHETIC_PROCESS, CAGCAGG_MIR370
GO Biological Process (11): liver development (GO:0001889), bile acid conjugation (GO:0002152), glycine metabolic process (GO:0006544), fatty acid metabolic process (GO:0006631), acyl-CoA metabolic process (GO:0006637), bile acid biosynthetic process (GO:0006699), bile acid metabolic process (GO:0008206), taurine metabolic process (GO:0019530), animal organ regeneration (GO:0031100), lipid metabolic process (GO:0006629), monocarboxylic acid metabolic process (GO:0032787)
GO Molecular Function (13): obsolete N-acyltransferase activity (GO:0016410), acyltransferase activity (GO:0016746), choloyl-CoA hydrolase activity (GO:0033882), fatty acyl-CoA hydrolase activity (GO:0047617), glycine N-choloyltransferase activity (GO:0047963), carboxylic ester hydrolase activity (GO:0052689), medium-chain fatty acyl-CoA hydrolase activity (GO:0052815), long-chain fatty acyl-CoA hydrolase activity (GO:0052816), very long-chain fatty acyl-CoA hydrolase activity (GO:0052817), protein binding (GO:0005515), transferase activity (GO:0016740), hydrolase activity (GO:0016787), thiolester hydrolase activity (GO:0016790)
GO Cellular Component (4): peroxisome (GO:0005777), peroxisomal matrix (GO:0005782), cytosol (GO:0005829), cytoplasm (GO:0005737)
Reactome top-level categories
Rollup of top-6 pathways:
| Category | Pathways |
|---|---|
| Bile acid and bile salt metabolism | 2 |
| Synthesis of bile acids and bile salts | 1 |
| Protein localization | 1 |
| Metabolism of steroids | 1 |
| Metabolism | 1 |
| Metabolism of lipids | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| fatty acyl-CoA hydrolase activity | 3 |
| bile acid metabolic process | 2 |
| monocarboxylic acid metabolic process | 2 |
| acyl-CoA hydrolase activity | 2 |
| hydrolase activity, acting on ester bonds | 2 |
| catalytic activity | 2 |
| cellular anatomical structure | 2 |
| gland development | 1 |
| hepaticobiliary system development | 1 |
| proteinogenic amino acid metabolic process | 1 |
| lipid metabolic process | 1 |
| nucleoside phosphate metabolic process | 1 |
| sulfur compound metabolic process | 1 |
| purine-containing compound metabolic process | 1 |
| monocarboxylic acid biosynthetic process | 1 |
| steroid metabolic process | 1 |
| alkanesulfonate metabolic process | 1 |
| regeneration | 1 |
| animal organ development | 1 |
| primary metabolic process | 1 |
| carboxylic acid metabolic process | 1 |
| transferase activity | 1 |
| acyltransferase activity, transferring groups other than amino-acyl groups | 1 |
| binding | 1 |
| microbody | 1 |
| peroxisome | 1 |
| microbody lumen | 1 |
| cytoplasm | 1 |
| intracellular anatomical structure | 1 |
Protein interactions and networks
STRING
869 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| BAAT | GLYAT | Q6IB77 | 882 |
| BAAT | TJP2 | Q9UDY2 | 844 |
| BAAT | SLC27A5 | Q9Y2P5 | 839 |
| BAAT | TMOD1 | P28289 | 814 |
| BAAT | ALDOB | P05062 | 780 |
| BAAT | AKR1D1 | P51857 | 722 |
| BAAT | CYP8B1 | Q9UNU6 | 717 |
| BAAT | CYP7A1 | P22680 | 669 |
| BAAT | ACOX2 | Q99424 | 668 |
| BAAT | ABCB11 | O95342 | 663 |
| BAAT | XPA | P23025 | 649 |
| BAAT | TMC1 | Q8TDI8 | 648 |
| BAAT | ABCC2 | Q92887 | 638 |
| BAAT | CYP27A1 | Q02318 | 634 |
| BAAT | ENTREP1 | Q15884 | 634 |
IntAct
68 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| GOLGA8F | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| BAAT | GOLGA8DP | psi-mi:“MI:0915”(physical association) | 0.560 |
| BAAT | GOLGA8F | psi-mi:“MI:0915”(physical association) | 0.560 |
| GOLGA8DP | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| CASP6 | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| HIP1 | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| HMOX2 | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| LAMP2 | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| BAAT | PPIA | psi-mi:“MI:0915”(physical association) | 0.560 |
| RAN | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| BAAT | YWHAG | psi-mi:“MI:0915”(physical association) | 0.560 |
| BAAT | SETDB1 | psi-mi:“MI:0915”(physical association) | 0.560 |
| KAT5 | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| SH3GLB1 | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| PRPF40A | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
| LMO3 | BAAT | psi-mi:“MI:0915”(physical association) | 0.560 |
BioGRID (27): GOLGA8EP (Two-hybrid), GOLGA8F (Two-hybrid), GOLGA8DP (Two-hybrid), STAU1 (Affinity Capture-MS), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid), BAAT (Two-hybrid)
ESM2 similar proteins: A2A7Z8, A7LB60, P08910, P0DKC5, P0DKC6, P22760, P70683, P83006, Q05AK6, Q0P5B7, Q13093, Q14032, Q1LZ86, Q28017, Q32LS6, Q4R2Y9, Q4V8A1, Q502J0, Q5EA42, Q5PPS7, Q5VUY0, Q5VUY2, Q5XI64, Q5ZJL8, Q5ZKL5, Q60963, Q63276, Q6DHN0, Q6GLL2, Q6IE26, Q6P093, Q7L211, Q7M370, Q7SY73, Q7Z5M8, Q802V6, Q80UX8, Q8BM81, Q8IUS5, Q8R2Y0
Diamond homologs: A2AKK5, O55137, O55171, O88267, P49753, Q14032, Q32Q92, Q3I5F7, Q5FVR5, Q63276, Q6Q2Z6, Q86TX2, Q8BGG9, Q8BWN8, Q8N9L9, Q91X34, Q9QYR7, Q9QYR9
SIGNOR signaling
0 interactions.
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 37 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.
Reactome pathways:
| Pathway | Partners | Fold | FDR |
|---|---|---|---|
| Transcriptional Regulation by TP53 | 6 | 13.8× | 1e-03 |
| Cell Cycle | 7 | 9.3× | 1e-03 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| negative regulation of cell growth | 5 | 21.2× | 2e-03 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
209 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 5 |
| Likely pathogenic | 1 |
| Uncertain significance | 132 |
| Likely benign | 28 |
| Benign | 24 |
Top pathogenic / likely-pathogenic (6)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1048532 | NM_001701.4(BAAT):c.1156G>A (p.Gly386Arg) | Pathogenic |
| 1048533 | NM_001701.4(BAAT):c.206A>T (p.Asp69Val) | Pathogenic |
| 1048534 | NM_001701.4(BAAT):c.58C>T (p.Arg20Ter) | Pathogenic |
| 1048535 | NM_001701.4(BAAT):c.250C>A (p.Pro84Thr) | Pathogenic |
| 6720 | NM_001701.4(BAAT):c.226A>G (p.Met76Val) | Pathogenic |
| 3347294 | NM_001701.4(BAAT):c.584del (p.Asn195fs) | Likely pathogenic |
SpliceAI
510 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 9:101368118:A:AG | donor_loss | 1.0000 |
| 9:101368318:CTCTC:C | acceptor_gain | 1.0000 |
| 9:101368320:CTC:C | acceptor_gain | 1.0000 |
| 9:101368118:A:AC | donor_gain | 0.9900 |
| 9:101368119:C:CC | donor_gain | 0.9900 |
| 9:101368321:TCC:T | acceptor_loss | 0.9900 |
| 9:101368323:C:CC | acceptor_gain | 0.9900 |
| 9:101368324:T:G | acceptor_loss | 0.9900 |
| 9:101370934:CTCA:C | donor_loss | 0.9900 |
| 9:101370935:TCA:T | donor_loss | 0.9900 |
| 9:101370936:CACCT:C | donor_loss | 0.9900 |
| 9:101371466:C:CT | acceptor_gain | 0.9900 |
| 9:101383466:GTACC:G | donor_loss | 0.9900 |
| 9:101383467:TAC:T | donor_loss | 0.9900 |
| 9:101383468:A:C | donor_loss | 0.9900 |
| 9:101383469:CC:C | donor_loss | 0.9900 |
| 9:101383479:T:TA | donor_gain | 0.9900 |
| 9:101360560:A:C | acceptor_gain | 0.9800 |
| 9:101363014:ACCTG:A | acceptor_loss | 0.9800 |
| 9:101363015:CCTGA:C | acceptor_loss | 0.9800 |
| 9:101363017:T:A | acceptor_loss | 0.9800 |
| 9:101368319:TCTC:T | acceptor_gain | 0.9800 |
| 9:101368319:TCTCC:T | acceptor_gain | 0.9800 |
| 9:101368320:CTCC:C | acceptor_gain | 0.9800 |
| 9:101368321:TC:T | acceptor_gain | 0.9800 |
| 9:101368321:TCCT:T | acceptor_gain | 0.9800 |
| 9:101368322:CC:C | acceptor_gain | 0.9800 |
| 9:101370937:A:AC | donor_gain | 0.9800 |
| 9:101370938:C:CC | donor_gain | 0.9800 |
| 9:101370938:CCTGG:C | donor_gain | 0.9800 |
AlphaMissense
2712 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 9:101362470:A:C | F405L | 0.963 |
| 9:101362470:A:T | F405L | 0.963 |
| 9:101362472:A:G | F405L | 0.963 |
| 9:101362490:A:G | W399R | 0.959 |
| 9:101362490:A:T | W399R | 0.959 |
| 9:101371273:A:C | F44L | 0.958 |
| 9:101371273:A:T | F44L | 0.958 |
| 9:101371275:A:G | F44L | 0.958 |
| 9:101368252:G:C | S179R | 0.954 |
| 9:101368252:G:T | S179R | 0.954 |
| 9:101368254:T:G | S179R | 0.954 |
| 9:101362911:A:C | N258K | 0.949 |
| 9:101362911:A:T | N258K | 0.949 |
| 9:101371015:C:A | R130S | 0.946 |
| 9:101371015:C:G | R130S | 0.946 |
| 9:101368156:A:C | F211L | 0.943 |
| 9:101368156:A:T | F211L | 0.943 |
| 9:101368158:A:G | F211L | 0.943 |
| 9:101368244:G:T | A182D | 0.942 |
| 9:101368231:G:C | F186L | 0.939 |
| 9:101368231:G:T | F186L | 0.939 |
| 9:101368233:A:G | F186L | 0.939 |
| 9:101370949:A:C | F152L | 0.937 |
| 9:101370949:A:T | F152L | 0.937 |
| 9:101370951:A:G | F152L | 0.937 |
| 9:101362488:C:A | W399C | 0.928 |
| 9:101362488:C:G | W399C | 0.928 |
| 9:101370950:A:G | F152S | 0.925 |
| 9:101362921:A:T | V255E | 0.922 |
| 9:101362686:G:C | S333R | 0.917 |
dbSNP variants (sampled 300 via entrez): RS1000013898 (9:101378062 C>T), RS1000137492 (9:101361034 T>C), RS1000150914 (9:101378380 T>G), RS1000234731 (9:101360407 T>C), RS1000475633 (9:101359921 C>T), RS1000642892 (9:101373075 G>C), RS1000748604 (9:101366985 G>A), RS1000875847 (9:101372102 A>G), RS1000893545 (9:101360825 A>T), RS1000908164 (9:101372842 G>A), RS1000948835 (9:101372360 A>C), RS1001022122 (9:101379819 G>A), RS1001077600 (9:101380068 T>C), RS1001149959 (9:101380145 T>C), RS1001179552 (9:101360166 A>G)
Disease associations
OMIM: gene MIM:602938 | disease phenotypes: MIM:619232, MIM:607748, MIM:235400
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| bile acid conjugation defect 1 | Strong | Autosomal recessive |
| hypercholanemia, familial 1 | Strong | Autosomal recessive |
| familial hypercholanemia | Supportive | Autosomal recessive |
ClinGen Gene-Disease Validity (1)
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
| Disease | Classification | Inheritance |
|---|---|---|
| bile acid CoA:amino acid N-acyltransferase deficiency | Moderate | AR |
Mondo (4): bile acid conjugation defect 1 (MONDO:0030991), hypercholanemia, familial 1 (MONDO:0031446), hemolytic uremic syndrome, atypical, susceptibility to, 1 (MONDO:0009335), (MONDO:0011905)
Orphanet (3): Familial hypercholanemia (Orphanet:238475), Atypical hemolytic uremic syndrome (Orphanet:2134), Shiga toxin-associated hemolytic uremic syndrome (Orphanet:90038)
HPO phenotypes
11 total (11 of 11 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000952 | Jaundice |
| HP:0001399 | Hepatic failure |
| HP:0002240 | Hepatomegaly |
| HP:0002748 | Rickets |
| HP:0002908 | Conjugated hyperbilirubinemia |
| HP:0003593 | Infantile onset |
| HP:0003621 | Juvenile onset |
| HP:0011463 | Childhood onset |
| HP:0031956 | Elevated circulating aspartate aminotransferase concentration |
| HP:0031964 | Elevated circulating alanine aminotransferase concentration |
GWAS associations
0 associations (top):
MeSH disease descriptors (1)
| Descriptor | Name | Tree numbers |
|---|---|---|
| C564336 | Hypercholanemia, Familial (supp.) |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
47 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Cyclosporine | decreases expression, affects cotreatment | 5 |
| Acetaminophen | affects cotreatment, decreases expression | 2 |
| Benzo(a)pyrene | decreases expression | 2 |
| Chenodeoxycholic Acid | decreases expression, affects cotreatment | 2 |
| Estradiol | decreases expression | 2 |
| Tetrachlorodibenzodioxin | decreases expression | 2 |
| Aflatoxin B1 | affects expression, decreases expression | 2 |
| aristolochic acid I | increases expression | 1 |
| dicrotophos | decreases expression | 1 |
| methyleugenol | decreases expression | 1 |
| propionaldehyde | decreases expression | 1 |
| senecionine | decreases expression | 1 |
| potassium bromate | decreases expression | 1 |
| perfluorooctanoic acid | decreases expression | 1 |
| ochratoxin A | decreases expression | 1 |
| potassium chromate(VI) | affects cotreatment, increases expression | 1 |
| S-(1,2-dichlorovinyl)cysteine | affects cotreatment, affects response to substance, increases expression | 1 |
| epigallocatechin gallate | affects cotreatment, increases expression | 1 |
| pentanal | decreases expression | 1 |
| nefazodone | affects cotreatment, decreases expression | 1 |
| perfluorooctane sulfonic acid | decreases expression | 1 |
| perfluoro-n-nonanoic acid | decreases expression | 1 |
| ormosil | affects binding, decreases expression | 1 |
| jinfukang | affects cotreatment, decreases expression | 1 |
| picoxystrobin | decreases expression | 1 |
| (+)-JQ1 compound | decreases expression | 1 |
| theaflavin-3,3’-digallate | affects expression | 1 |
| Atazanavir Sulfate | affects cotreatment, decreases expression | 1 |
| Zoledronic Acid | increases expression | 1 |
| Cholic Acids | affects cotreatment, affects expression | 1 |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
- Associated diseases: bile acid conjugation defect 1, hypercholanemia, familial 1, hypercholanemia, familial
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): bile acid conjugation defect 1, hemolytic uremic syndrome, atypical, susceptibility to, 1, hypercholanemia, familial 1