Identification
HMDB Protein ID CDBP02456
Secondary Accession Numbers Not Available
Name Electroneutral sodium bicarbonate exchanger 1
Description Not Available
Synonyms
  1. Electroneutral Na(+)-driven Cl-HCO3 exchanger
  2. Solute carrier family 4 member 8
  3. k-NBC3
Gene Name SLC4A8
Protein Type Transporter
Biological Properties
General Function Involved in anion transport
Specific Function Mediates electroneutral sodium- and carbonate-dependent choride-HCO3(-) exchange with a Na(+):HCO3(-) stoichiometry of 2:1. Plays a major role in pH regulation in neurons. May be involved in cell pH regulation by transporting HCO3(-) from blood to cell. Enhanced expression in severe acid stress could be important for cell survival by mediating the influx of HCO3(-) into the cells. Also mediates lithium-dependent HCO3(-) cotransport. May be regulated by osmolarity
GO Classification
Component
integral to membrane
membrane
cell part
membrane part
intrinsic to membrane
Function
inorganic anion exchanger activity
transmembrane transporter activity
substrate-specific transmembrane transporter activity
ion transmembrane transporter activity
anion:anion antiporter activity
transporter activity
anion transmembrane transporter activity
Process
establishment of localization
transport
anion transport
ion transport
Cellular Location
  1. Membrane
  2. Multi-pass membrane protein
Pathways
Gene Properties
Chromosome Location Chromosome:1
Locus 12q13.13
SNPs SLC4A8
Gene Sequence
>3282 bp
ATGCCGGCCGCCGGGAGTAACGAGCCGGACGGCGTCCTCAGCTATCAGAGACCAGATGAA
GAAGCTGTGGTGGATCAGGGTGGGACCAGTACAATTCTCAACATTCACTATGAAAAAGAA
GAGCTGGAAGGTCACAGAACTCTGTATGTGGGAGTTCGGATGCCGCTTGGCCGGCAGAGC
CATCGGCATCACCGCACTCATGGCCAGAAGCACCGGAGACGAGGGCGGGGCAAAGGAGCC
AGCCAGGGGGAGGAAGGCCTGGAAGCCCTGGCCCACGACACACCATCTCAGCGTGTTCAG
TTCATTCTTGGCACCGAGGAAGATGAAGAGCATGTGCCTCATGAGCTGTTTACAGAGCTG
GATGAGATCTGTATGAAAGAGGGAGAAGATGCTGAGTGGAAGGAAACAGCCAGGTGGCTG
AAGTTTGAAGAAGATGTTGAAGATGGGGGAGAACGCTGGAGCAAGCCTTATGTGGCAACC
CTTTCATTGCACAGCCTGTTTGAGCTAAGGAGCTGCCTTATTAATGGAACAGTCCTCCTG
GATATGCATGCAAATAGCATAGAAGAAATTTCAGACCTGATCCTGGATCAGCAAGAACTG
TCCAGTGACCTGAATGACAGCATGAGGGTTAAAGTGCGGGAAGCCCTTCTCAAAAAGCAT
CATCATCAGAATGAAAAGAAGAGAAACAACCTCATTCCCATTGTTCGCTCCTTTGCTGAG
GTTGGCAAGAAGCAGTCTGATCCTCATTTGATGGATAAACATGGTCAAACCGTGTCTCCT
CAGTCTGTTCCAACTACAAATCTTGAAGTAAAAAATGGAGTGAATTGTGAACATAGTCCT
GTGGATTTAAGCAAGGTAGACCTTCATTTCATGAAAAAAATTCCTACTGGGGCCGAGGCC
TCCAATGTCCTGGTTGGAGAGGTGGATATTTTGGACCGTCCCATTGTTGCCTTTGTGAGG
CTGTCTCCAGCTGTTCTTCTCTCAGGCCTAACAGAAGTGCCAATCCCAACAAGATTTTTG
TTTATCTTATTGGGTCCAGTAGGGAAAGGTCAGCAGTACCATGAGATTGGCAGATCCATG
GCCACCATCATGACAGATGAGATTTTTCATGACGTAGCATATAAGGCAAAAGAGCGAGAT
GATCTCCTGGCGGGGATTGATGAGTTCCTAGACCAGGTGACGGTGCTCCCTCCAGGAGAG
TGGGATCCCTCCATTAGAATTGAGCCACCCAAAAATGTCCCTTCCCAGGAGAAAAGGAAA
ATGCCTGGAGTTCCAAATGGAAATGTTTGCCACATAGAACAGGAACCACATGGGGGTCAC
AGTGGGCCAGAACTTCAGCGCACTGGGCGGCTATTTGGGGGCTTGGTGCTGGACATCAAG
CGGAAGGCCCCCTGGTACTGGAGCGACTACCGAGATGCACTCAGCTTACAGTGTTTGGCT
TCCTTTCTGTTCCTGTACTGTGCCTGCATGTCACCTGTCATCACCTTTGGGGGACTGCTT
GGAGAAGCCACTGAGGGACGCATAAGTGCAATTGAATCCTTGTTTGGAGCTTCCATGACT
GGGATTGCTTATTCCTTGTTTGCGGGACAGGCTCTCACCATCCTGGGAAGTACTGGACCA
GTGCTTGTGTTTGAAAAGATTTTGTTCAAATTCTGCAAAGACTATGCTCTTTCATACCTC
TCCCTGCGAGCTTGTATTGGACTGTGGACCGCTTTCCTGTGTATTGTCCTTGTGGCAACT
GATGCCAGTTCCCTTGTCTGCTACATTACCCGTTTCACTGAAGAAGCATTTGCCTCCCTA
ATTTGCATTATTTTCATCTATGAAGCAATAGAAAAACTGATTCACCTGGCAGAGACCTAC
CCCATCCACATGCACAGCCAGCTGGACCACCTTAGCCTCTATTACTGCAGGTGTACTCTG
CCAGAGAATCCAAACAATCACACCCTCCAGTACTGGAAGGACCACAACATCGTGACAGCA
GAAGTCCACTGGGCTAACCTGACTGTCAGTGAATGCCAGGAGATGCATGGAGAGTTCATG
GGATCTGCGTGCGGCCATCATGGACCCTACACTCCTGATGTCCTCTTTTGGTCCTGTATT
CTCTTTTTCACCACCTTCATCCTCTCAAGCACCTTAAAGACGTTTAAGACGAGCCGTTAT
TTCCCAACCAGAGTACGCTCCATGGTGAGTGACTTTGCTGTTTTCCTCACTATCTTCACA
ATGGTGATTATTGATTTTTTGATTGGAGTCCCATCACCAAAGCTTCAAGTTCCCAGTGTG
TTCAAGCCAACAAGGGATGATCGCGGATGGATTATTAATCCCATTGGCCCCAATCCCTGG
TGGACTGTGATAGCTGCAATTATCCCAGCTCTTCTCTGTACTATCTTGATATTCATGGAT
CAGCAGATCACAGCCGTCATTATTAACAGGAAGGAACATAAGCTCAAGAAAGGCTGTGGC
TACCACCTGGACCTACTGATGGTGGCCATCATGCTGGGTGTCTGCTCCATCATGGGCCTG
CCCTGGTTTGTAGCTGCAACTGTCTTGTCCATCACACATGTGAACAGCCTCAAGCTAGAA
TCTGAATGCTCTGCTCCTGGAGAACAGCCCAAGTTCCTGGGCATCCGAGAACAGAGAGTG
ACAGGCCTTATGATCTTTGTGCTGATGGGCTGCTCAGTCTTCATGACGGCTATCTTAAAG
TTTATTCCAATGCCAGTACTCTACGGAGTTTTCCTTTACATGGGAGTTTCTTCACTACAG
GGAATTCAGTTCTTTGATCGTCTAAAGCTCTTTGGGATGCCCGCAAAGCACCAGCCAGAT
TTCATCTACCTGCGGCATGTGCCGCTGCGCAAAGTGCACCTCTTCACCCTCATCCAGTTG
ACCTGTCTCGTCCTGCTCTGGGTCATCAAGGCATCTCCAGCTGCCATTGTTTTCCCAATG
ATGGTTTTGGCCTTGGTCTTTGTCAGGAAAGTCATGGATCTCTGTTTCTCTAAGCGAGAG
CTGAGCTGGCTAGATGATCTCATGCCTGAAAGCAAAAAGAAGAAGTTGGATGATGCCAAA
AAGAAGGCCAAGGAGGAAGAGGAGGCTGAGAAAATGTTAGAAATTGGGGGAGACAAGTTT
CCCTTAGAGAGCAGGAAGTTACTAAGTAGTCCTGGAAAGAACATCAGTTGCAGATGTGAC
CCCTCTGAGATTAATATATCTGATGAAATGCCTAAAACTACAGTTTGGAAAGCTCTCAGT
ATGAATTCTGGAAATGCAAAGGAAAAGAGTCTCTTCAACTAA
Protein Properties
Number of Residues 1093
Molecular Weight 122936.7
Theoretical pI 6.67
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["479-499", "524-544", "566-586", "596-616", "688-708", "732-752", "779-799", "825-845", "882-902", "905-925", "963-983"]
Protein Sequence
>Electroneutral sodium bicarbonate exchanger 1
MPAAGSNEPDGVLSYQRPDEEAVVDQGGTSTILNIHYEKEELEGHRTLYVGVRMPLGRQS
HRHHRTHGQKHRRRGRGKGASQGEEGLEALAHDTPSQRVQFILGTEEDEEHVPHELFTEL
DEICMKEGEDAEWKETARWLKFEEDVEDGGERWSKPYVATLSLHSLFELRSCLINGTVLL
DMHANSIEEISDLILDQQELSSDLNDSMRVKVREALLKKHHHQNEKKRNNLIPIVRSFAE
VGKKQSDPHLMDKHGQTVSPQSVPTTNLEVKNGVNCEHSPVDLSKVDLHFMKKIPTGAEA
SNVLVGEVDILDRPIVAFVRLSPAVLLSGLTEVPIPTRFLFILLGPVGKGQQYHEIGRSM
ATIMTDEIFHDVAYKAKERDDLLAGIDEFLDQVTVLPPGEWDPSIRIEPPKNVPSQEKRK
MPGVPNGNVCHIEQEPHGGHSGPELQRTGRLFGGLVLDIKRKAPWYWSDYRDALSLQCLA
SFLFLYCACMSPVITFGGLLGEATEGRISAIESLFGASMTGIAYSLFAGQALTILGSTGP
VLVFEKILFKFCKDYALSYLSLRACIGLWTAFLCIVLVATDASSLVCYITRFTEEAFASL
ICIIFIYEAIEKLIHLAETYPIHMHSQLDHLSLYYCRCTLPENPNNHTLQYWKDHNIVTA
EVHWANLTVSECQEMHGEFMGSACGHHGPYTPDVLFWSCILFFTTFILSSTLKTFKTSRY
FPTRVRSMVSDFAVFLTIFTMVIIDFLIGVPSPKLQVPSVFKPTRDDRGWIINPIGPNPW
WTVIAAIIPALLCTILIFMDQQITAVIINRKEHKLKKGCGYHLDLLMVAIMLGVCSIMGL
PWFVAATVLSITHVNSLKLESECSAPGEQPKFLGIREQRVTGLMIFVLMGCSVFMTAILK
FIPMPVLYGVFLYMGVSSLQGIQFFDRLKLFGMPAKHQPDFIYLRHVPLRKVHLFTLIQL
TCLVLLWVIKASPAAIVFPMMVLALVFVRKVMDLCFSKRELSWLDDLMPESKKKKLDDAK
KKAKEEEEAEKMLEIGGDKFPLESRKLLSSPGKNISCRCDPSEINISDEMPKTTVWKALS
MNSGNAKEKSLFN
GenBank ID Protein 90403614
UniProtKB/Swiss-Prot ID Q2Y0W8
UniProtKB/Swiss-Prot Entry Name S4A8_HUMAN
PDB IDs Not Available
GenBank Gene ID NM_001039960.1
GeneCard ID SLC4A8
GenAtlas ID SLC4A8
HGNC ID HGNC:11034
References
General References Not Available