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Protein basic information

LiverAtlas Protein ID

HuLPr45158

Uniprot ID

S4A4_HUMAN

Uniprot Acc

Q9Y6R1;C4B714;O15153;Q8NEJ2;Q9H262;Q9NRZ1;Q9UIC0;Q9UIC1;Q9UP50;

Protein name

Electrogenic sodium bicarbonate cotransporter 1

Comment

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.||ENZYME REGULATION:Inhibited by stilbene derivatives and regulated by cyclic AMP.||SUBUNIT:Interacts with CA2/carbonic anhydrase 2 and CA4/carbonic anhydrase 4 which may regulate transporter activity.||SUBCELLULAR LOCATION:Basolateral cell membrane; Multi-pass membrane protein.||ALTERNATIVE PRODUCTS:Event=Alternative splicing; Named isoforms=5; Name=1; Synonyms=hcNBC, hhNBC, hNBC1, pNBC, pNCB1, pNBC-1, NBC1b; IsoId=Q9Y6R1-1; Sequence=Displayed; Name=2; Synonyms=hkNBC, hkNBCe1, kNBC, kNBC1, kNBC-1, NBC1a; IsoId=Q9Y6R1-2; Sequence=VSP 016704, VSP 016705; Name=3; IsoId=Q9Y6R1-3; Sequence=VSP 016704, VSP 016705, VSP 016706, VSP 016707; Name=4; IsoId=Q9Y6R1-4; Sequence=VSP 016708; Name=5; IsoId=Q9Y6R1-5; Sequence=VSP 041003;||TISSUE SPE

Subcellular localization

Basolateral cell membrane;Multi-pass membrane protein.

Gene name

solute carrier family 4, sodium bicarbonate cotransporter, member 4

Protein sequence

MEDEAVLDRGASFLKHVCDEEEVEGHHTIYIGVHVPKSYR RRRRHKRKTGHKEKKEKERISENYSDKSDIENADESSSS ILKPLISPAAERIRFILGEEDDSPAPPQLFTELDELLAV DGQEMEWKETARWIKFEEKVEQGGERWSKPHVATLSLHS LFELRTCMEKGSIMLDREASSLPQLVEMIVDHQIETGLL KPELKDKVTYTLLRKHRHQTKKSNLRSLADIGKTVSSAS RMFTNPDNGSPAMTHRNLTSSSLNDISDKPEKDQLKNKF MKKLPRDAEASNVLVGEVDFLDTPFIAFVRLQQAVMLGA LTEVPVPTRFLFILLGPKGKAKSYHEIGRAIATLMSDEV FHDIAYKAKDRHDLIAGIDEFLDEVIVLPPGEWDPAIRI EPPKSLPSSDKRKNMYSGGENVQMNGDTPHDGGHGGGGH GDCEELQRTGRFCGGLIKDIKRKAPFFASDFYDALNIQA LSAILFIYLATVTNAITFGGLLGDATDNMQGVLESFLGT AVSGAIFCLFAGQPLTILSSTGPVLVFERLLFNFSKDNN FDYLEFRLWIGLWSAFLCLILVATDASFLVQYFTRFTEE GFSSLISFIFIYDAFKKMIKLADYYPINSNFKVGYNTLF SCTCVPPDPANISISNDTTLAPEYLPTMSSTDMYHNTTF DWAFLSKKECSKYGGNLVGNNCNFVPDITLMSFILFLGT YTSSMALKKFKTSPYFPTTARKLISDFAIILSILIFCVI DALVGVDTPKLIVPSEFKPTSPNRGWFVPPFGENPWWVC LAAAIPALLVTILIFMDQQITAVIVNRKEHKLKKGAGYH LDLFWVAILMVICSLMALPWYVAATVISIAHIDSLKMET ETSAPGEQPKFLGVREQRVTGTLVFILTGLSVFMAPILK FIPMPVLYGVFLYMGVASLNGVQFMDRLKLLLMPLKHQP DFIYLRHVPLRRVHLFTFLQVLCLALLWILKSTVAAIIF PVMILALVAVRKGMDYLFSQHDLS

Database cross reference

RefSeq Protein accession:NP_001091954
RefSeq Protein gi:148596928

Liver relevance

HLPP validation

Yes/No

Yes

Project name

Chinese Liver;Human Liver Organelles;

Ontology annotation

GO-C

GO:0016323;C:basolateral plasma membrane;IEA:UniProtKB-SubCell. GO:0005887;C:integral to plasma membrane;TAS:ProtInc.

GO-F

GO:0005452;F:inorganic anion exchanger activity;IEA:InterPro. GO:0005515;F:protein binding;IPI:DFLAT. GO:0008510;F:sodium:bicarbonate symporter activity;TAS:Reactome.

Post-translational modification

LiverAtlas Protein ID

MOD type1

Position1

Residue1

Source name1

source ID1

Source method

HLPP validation1 (Yes/no)

Quality score

HuLPr45158

PHOSPHORYLATION

1026

S

Phospho-ELM

2783

LTP

N

HuLPr45158

PHOSPHORYLATION

1069

S

PhosphoSitePlus

487281

LTP

HTP

N

HuLPr45158

PHOSPHORYLATION

1038

Y

PhosphoSitePlus

473337

LTP

N

HuLPr45158

PHOSPHORYLATION

30

Y

PhosphoSitePlus

2424925

LTP

N

HuLPr45158

PHOSPHORYLATION

1078

S

PhosphoSitePlus

3896041

LTP

N

HuLPr45158

PHOSPHORYLATION

249

T

PhosphoSitePlus

5196395

LTP

N

HuLPr45158

PHOSPHORYLATION

245

S

PhosphoSitePlus

2047937

LTP

N

HuLPr45158

PHOSPHORYLATION

1026

S

PhosphoSitePlus

469803

HTP

N

HuLPr45158

PHOSPHORYLATION

257

S

PhosphoSitePlus

469806

LTP

N

HuLPr45158

PHOSPHORYLATION

1071

T

PhosphoSitePlus

469808

LTP

N

HuLPr45158

PHOSPHORYLATION

254

T

PhosphoSitePlus

469809

LTP

N

HuLPr45158

PHOSPHORYLATION

49

T

PhosphoSitePlus

13194700

HTP

N

HuLPr45158

PHOSPHORYLATION

255

S

PhosphoSitePlus

4149660

LTP

N

HuLPr45158

PHOSPHORYLATION

256

S

PhosphoSitePlus

4149664

LTP

N