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Protein

Serum albumin

Gene

Alb

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Serum albumin, the main protein of plasma, has a good binding capacity for water, Ca2+, Na+, K+, fatty acids, hormones, bilirubin and drugs. Its main function is the regulation of the colloidal osmotic pressure of blood. Major zinc transporter in plasma, typically binds about 80% of all plasma zinc.

Caution

A peptide arising from positions 166 to 174 was originally termed neurotensin-related peptide (NRP) and was thought to regulate fat digestion, lipid absorption, and blood flow.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi27Copper1
Metal bindingi91ZincBy similarity1
Metal bindingi123ZincBy similarity1
Metal bindingi271ZincBy similarity1
Metal bindingi273ZincBy similarity1

GO - Molecular functioni

  • DNA binding Source: UniProtKB
  • drug binding Source: RGD
  • enzyme binding Source: RGD
  • fatty acid binding Source: RGD
  • pyridoxal phosphate binding Source: UniProtKB
  • toxic substance binding Source: UniProtKB
  • zinc ion binding Source: RGD

GO - Biological processi

Keywordsi

LigandCopper, Lipid-binding, Metal-binding, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Serum albumin
Gene namesi
Name:Alb
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi2085 Alb

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Secreted

Pathology & Biotechi

Protein family/group databases

Allergomei756 Rat n 4

Chemistry databases

ChEMBLiCHEMBL4817

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 181 PublicationAdd BLAST18
PropeptideiPRO_000000107919 – 241 Publication6
ChainiPRO_000000108025 – 608Serum albuminAdd BLAST584

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei29PhosphoserineBy similarity1
Disulfide bondi77 ↔ 86PROSITE-ProRule annotation
Modified residuei89PhosphoserineBy similarity1
Disulfide bondi99 ↔ 115PROSITE-ProRule annotation
Disulfide bondi114 ↔ 125PROSITE-ProRule annotation
Disulfide bondi148 ↔ 193PROSITE-ProRule annotation
Disulfide bondi192 ↔ 201PROSITE-ProRule annotation
Disulfide bondi224 ↔ 270PROSITE-ProRule annotation
Disulfide bondi269 ↔ 277PROSITE-ProRule annotation
Disulfide bondi289 ↔ 303PROSITE-ProRule annotation
Modified residuei297PhosphoserineBy similarity1
Disulfide bondi302 ↔ 313PROSITE-ProRule annotation
Disulfide bondi340 ↔ 385PROSITE-ProRule annotation
Disulfide bondi384 ↔ 393PROSITE-ProRule annotation
Disulfide bondi416 ↔ 462PROSITE-ProRule annotation
Modified residuei443PhosphoserineCombined sources1
Modified residuei444PhosphothreonineBy similarity1
Modified residuei446PhosphothreonineBy similarity1
Modified residuei460N6-succinyllysineBy similarity1
Disulfide bondi461 ↔ 472PROSITE-ProRule annotation
Disulfide bondi485 ↔ 501PROSITE-ProRule annotation
Disulfide bondi500 ↔ 511PROSITE-ProRule annotation
Modified residuei513PhosphoserineBy similarity1
Disulfide bondi538 ↔ 583PROSITE-ProRule annotation
Modified residuei543N6-succinyllysineBy similarity1
Modified residuei558N6-methyllysineBy similarity1
Modified residuei570PhosphothreonineCombined sources1
Disulfide bondi582 ↔ 591PROSITE-ProRule annotation
Modified residuei588N6-succinyllysineBy similarity1

Post-translational modificationi

Phosphorylated by FAM20C in the extracellular medium.By similarity

Keywords - PTMi

Cleavage on pair of basic residues, Disulfide bond, Methylation, Phosphoprotein

Proteomic databases

PaxDbiP02770
PRIDEiP02770

2D gel databases

UCD-2DPAGEiP02770
World-2DPAGEi0004:P02770

PTM databases

CarbonylDBiP02770
iPTMnetiP02770
PhosphoSitePlusiP02770
SwissPalmiP02770

Expressioni

Tissue specificityi

Plasma.

Interactioni

GO - Molecular functioni

Protein-protein interaction databases

CORUMiP02770
IntActiP02770, 2 interactors
STRINGi10116.ENSRNOP00000003921

Chemistry databases

BindingDBiP02770

Structurei

3D structure databases

ProteinModelPortaliP02770
SMRiP02770
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini19 – 211Albumin 1PROSITE-ProRule annotationAdd BLAST193
Domaini212 – 403Albumin 2PROSITE-ProRule annotationAdd BLAST192
Domaini404 – 601Albumin 3PROSITE-ProRule annotationAdd BLAST198

Sequence similaritiesi

Belongs to the ALB/AFP/VDB family.PROSITE-ProRule annotation

Keywords - Domaini

Repeat, Signal

Phylogenomic databases

eggNOGiENOG410IIRZ Eukaryota
ENOG410Z40H LUCA
HOGENOMiHOG000293137
HOVERGENiHBG004207
InParanoidiP02770
KOiK16141
PhylomeDBiP02770
TreeFamiTF335561

Family and domain databases

CDDicd00015 ALBUMIN, 3 hits
InterProiView protein in InterPro
IPR000264 ALB/AFP/VDB
IPR020858 Serum_albumin-like
IPR021177 Serum_albumin/AFP/Afamin
IPR020857 Serum_albumin_CS
IPR014760 Serum_albumin_N
PANTHERiPTHR11385 PTHR11385, 1 hit
PfamiView protein in Pfam
PF00273 Serum_albumin, 3 hits
PIRSFiPIRSF002520 Serum_albumin_subgroup, 1 hit
PRINTSiPR00802 SERUMALBUMIN
SMARTiView protein in SMART
SM00103 ALBUMIN, 3 hits
SUPFAMiSSF48552 SSF48552, 3 hits
PROSITEiView protein in PROSITE
PS00212 ALBUMIN_1, 3 hits
PS51438 ALBUMIN_2, 3 hits

Sequence (1+)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.iShow all

P02770-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKWVTFLLLL FISGSAFSRG VFRREAHKSE IAHRFKDLGE QHFKGLVLIA
60 70 80 90 100
FSQYLQKCPY EEHIKLVQEV TDFAKTCVAD ENAENCDKSI HTLFGDKLCA
110 120 130 140 150
IPKLRDNYGE LADCCAKQEP ERNECFLQHK DDNPNLPPFQ RPEAEAMCTS
160 170 180 190 200
FQENPTSFLG HYLHEVARRH PYFYAPELLY YAEKYNEVLT QCCTESDKAA
210 220 230 240 250
CLTPKLDAVK EKALVAAVRQ RMKCSSMQRF GERAFKAWAV ARMSQRFPNA
260 270 280 290 300
EFAEITKLAT DVTKINKECC HGDLLECADD RAELAKYMCE NQATISSKLQ
310 320 330 340 350
ACCDKPVLQK SQCLAEIEHD NIPADLPSIA ADFVEDKEVC KNYAEAKDVF
360 370 380 390 400
LGTFLYEYSR RHPDYSVSLL LRLAKKYEAT LEKCCAEGDP PACYGTVLAE
410 420 430 440 450
FQPLVEEPKN LVKTNCELYE KLGEYGFQNA VLVRYTQKAP QVSTPTLVEA
460 470 480 490 500
ARNLGRVGTK CCTLPEAQRL PCVEDYLSAI LNRLCVLHEK TPVSEKVTKC
510 520 530 540 550
CSGSLVERRP CFSALTVDET YVPKEFKAET FTFHSDICTL PDKEKQIKKQ
560 570 580 590 600
TALAELVKHK PKATEDQLKT VMGDFAQFVD KCCKAADKDN CFATEGPNLV

ARSKEALA
Length:608
Mass (Da):68,731
Last modified:January 23, 2007 - v2
Checksum:i07475796EA94938C
GO

Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A0A0G2JSH5A0A0G2JSH5_RAT
Serum albumin
Alb
608Annotation score:

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti174Y → L AA sequence (PubMed:2437111).Curated1
Sequence conflicti317I → T in CAA24532 (PubMed:7017712).Curated1
Sequence conflicti431V → I in AAH85359 (PubMed:15489334).Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural varianti262V → L1 Publication1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
V01222 mRNA Translation: CAA24532.1
BC085359 mRNA Translation: AAH85359.1
PIRiA93872 ABRTS
RefSeqiNP_599153.2, NM_134326.2
UniGeneiRn.202968
Rn.49051

Genome annotation databases

GeneIDi24186
KEGGirno:24186
UCSCiRGD:2085 rat

Keywords - Coding sequence diversityi

Polymorphism

Similar proteinsi

Entry informationi

Entry nameiALBU_RAT
AccessioniPrimary (citable) accession number: P02770
Secondary accession number(s): P11382, Q5U3X3
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: January 23, 2007
Last modified: June 20, 2018
This is version 166 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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