Gene Gene information from NCBI Gene database.
Entrez ID 8671
Gene name Solute carrier family 4 member 4
Gene symbol SLC4A4
Synonyms (NCBI Gene)
HNBC1KNBCNBC1NBC2NBCe1NBCe1-APRTAOSLC4A5hhNMCkNBC1pNBC
Chromosome 4
Chromosome location 4q13.3
Summary This gene encodes a sodium bicarbonate cotransporter (NBC) involved in the regulation of bicarbonate secretion and absorption and intracellular pH. Mutations in this gene are associated with proximal renal tubular acidosis. Multiple transcript variants en
SNPs SNP information provided by dbSNP.
6
SNP ID Visualize variation Clinical significance Consequence
rs72650362 A>G Conflicting-interpretations-of-pathogenicity Missense variant, coding sequence variant
rs121908856 A>C Pathogenic Missense variant, coding sequence variant
rs121908857 G>A Pathogenic Missense variant, coding sequence variant
rs121908858 C>T Pathogenic Stop gained, coding sequence variant, genic upstream transcript variant, intron variant
rs786205569 A>T Likely-pathogenic Coding sequence variant, missense variant
miRNA miRNA information provided by mirtarbase database.
150
miRTarBase ID miRNA Experiments Reference
MIRT678153 hsa-miR-4722-3p HITS-CLIP 23824327
MIRT678152 hsa-miR-6727-3p HITS-CLIP 23824327
MIRT678151 hsa-miR-6747-3p HITS-CLIP 23824327
MIRT678147 hsa-miR-3653-5p HITS-CLIP 23824327
MIRT678146 hsa-miR-1976 HITS-CLIP 23824327
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
54
GO ID Ontology Definition Evidence Reference
GO:0005452 Function Solute:inorganic anion antiporter activity IEA
GO:0005515 Function Protein binding IPI 14567693, 15218065, 15563508, 16769890
GO:0005829 Component Cytosol IDA
GO:0005886 Component Plasma membrane IBA
GO:0005886 Component Plasma membrane IDA 16636648
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
603345 11030 ENSG00000080493
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q9Y6R1
Protein name Electrogenic sodium bicarbonate cotransporter 1 (Sodium bicarbonate cotransporter) (Na(+)/HCO3(-) cotransporter) (Solute carrier family 4 member 4) (kNBC1)
Protein function Electrogenic sodium/bicarbonate cotransporter with a Na(+):HCO3(-) stoichiometry varying from 1:2 to 1:3. May regulate bicarbonate influx/efflux at the basolateral membrane of cells and regulate intracellular pH. {ECO:0000269|PubMed:10069984, EC
PDB 6CAA
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF07565 Band_3_cyto 137 388 Band 3 cytoplasmic domain Domain
PF00955 HCO3_cotransp 436 956 HCO3- transporter family Family
Tissue specificity TISSUE SPECIFICITY: [Isoform 1]: Expressed in the corneal endothelium cells (at protein level). Expressed in pancreas and to a lower extent in heart, skeletal muscle, liver, parotid salivary glands, prostate, colon, stomach, thyroid, brain and spinal cord
Sequence
MEDEAVLDRGASFLKHVCDEEEVEGHHTIYIGVHVPKSYRRRRRHKRKTGHKEKKEKERI
SENYSDKSDIENADESSSSILKPLISPAAERIRFILGEEDDSPAPPQLFTELDELLAVDG
QEMEWKETARWIKFEEKVEQGGERWSKPHVATLSLHSLFELRTCMEKGSIMLDREASSLP
QLVEMIVDHQIETGLLKPELKDKVTYTLLRKHRHQTKKSNLRSLADIGKTVSSASRMFTN
PDNGSPAMTHRNLTSSSLNDISDKPEKDQLKNKFMKKLPRDAEASNVLVGEVDFLDTPFI
AFVRLQQAVMLGALTEVPVPTRFLFILLGPKGKAKSYHEIGRAIATLMSDEVFHDIAYKA
KDRHDLIAGIDEFLDEVIVLPPGEWDPA
IRIEPPKSLPSSDKRKNMYSGGENVQMNGDTP
HDGGHGGGGHGDCEELQRTGRFCGGLIKDIKRKAPFFASDFYDALNIQALSAILFIYLAT
VTNAITFGGLLGDATDNMQGVLESFLGTAVSGAIFCLFAGQPLTILSSTGPVLVFERLLF
NFSKDNNFDYLEFRLWIGLWSAFLCLILVATDASFLVQYFTRFTEEGFSSLISFIFIYDA
FKKMIKLADYYPINSNFKVGYNTLFSCTCVPPDPANISISNDTTLAPEYLPTMSSTDMYH
NTTFDWAFLSKKECSKYGGNLVGNNCNFVPDITLMSFILFLGTYTSSMALKKFKTSPYFP
TTARKLISDFAIILSILIFCVIDALVGVDTPKLIVPSEFKPTSPNRGWFVPPFGENPWWV
CLAAAIPALLVTILIFMDQQITAVIVNRKEHKLKKGAGYHLDLFWVAILMVICSLMALPW
YVAATVISIAHIDSLKMETETSAPGEQPKFLGVREQRVTGTLVFILTGLSVFMAPILKFI
PMPVLYGVFLYMGVASLNGVQFMDRLKLLLMPLKHQPDFIYLRHVPLRRVHLFTFL
QVLC
LALLWILKSTVAAIIFPVMILALVAVRKGMDYLFSQHDLSFLDDVIPEKDKKKKEDEKKK
KKKKGSLDSDNDDSDCPYSEKVPSIKIPMDIMEQQPFLSDSKPSDRERSPTFLERHTSC
Sequence length 1079
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Proximal tubule bicarbonate reclamation
Pancreatic secretion
Bile secretion
  Bicarbonate transporters
Defective SLC4A4 causes renal tubular acidosis, proximal, with ocular abnormalities and mental retardation (pRTA-OA)
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
21
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Autosomal recessive proximal renal tubular acidosis Pathogenic; Likely pathogenic rs121908856, rs121908857, rs121908858, rs778804628, rs1725958418, rs1553913019 RCV000006844
RCV000006845
RCV000006846
RCV003322671
RCV004577929
View all (1 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
SLC4A4-related disorder Likely pathogenic rs752089136 RCV003397790
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
ATRIAL FIBRILLATION GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CATARACT CTD
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CENTRAL NERVOUS SYSTEM CANCER GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cervical cancer Benign; Conflicting classifications of pathogenicity ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Adenocarcinoma of lung (disorder) Lung adenocarcinoma CTD_human_DG 27602772
★☆☆☆☆
Found in Text Mining only
Autosomal recessive proximal renal tubular acidosis Proximal Renal Tubular Acidosis Orphanet
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Carcinoma Pancreatic Ductal Pancreatic ductal carcinoma Pubtator 35247929 Associate
★☆☆☆☆
Found in Text Mining only
Carcinoma Renal Cell Renal cell carcinoma Pubtator 30668544 Associate
★☆☆☆☆
Found in Text Mining only
Cataract Cataract BEFREE 11435462, 15471865, 16636648, 24477681
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cataract Cataract CTD_human_DG 18614622
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cataract Cataract Pubtator 23832211, 29914390 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cataract Cataract HPO_DG
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Child Development Deviations Development Disorder CTD_human_DG 18614622
★☆☆☆☆
Found in Text Mining only
Child Development Disorders, Specific Development Disorder CTD_human_DG 18614622
★☆☆☆☆
Found in Text Mining only