UniProtKB - P02770 (ALBU_RAT)
Protein
Serum albumin
Gene
Alb
Organism
Rattus norvegicus (Rat)
Status
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 key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Metal bindingi | 27 | Copper | 1 | |
| Metal bindingi | 91 | ZincBy similarity | 1 | |
| Metal bindingi | 123 | ZincBy similarity | 1 | |
| Metal bindingi | 271 | ZincBy similarity | 1 | |
| Metal bindingi | 273 | ZincBy similarity | 1 |
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
- cellular response to starvation Source: UniProtKB
- hemolysis by symbiont of host erythrocytes Source: UniProtKB
- maintenance of mitochondrion location Source: UniProtKB
- negative regulation of apoptotic process Source: UniProtKB
- positive regulation of circadian sleep/wake cycle, non-REM sleep Source: RGD
- response to mercury ion Source: RGD
- response to nutrient Source: RGD
- response to organic substance Source: RGD
- response to platinum ion Source: RGD
- vasodilation Source: RGD
Keywordsi
| Ligand | Copper, Lipid-binding, Metal-binding, Zinc |
Names & Taxonomyi
| Protein namesi | Recommended name: Serum albumin |
| Gene namesi | Name:Alb |
| Organismi | Rattus norvegicus (Rat) |
| Taxonomic identifieri | 10116 [NCBI] |
| Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus |
| Proteomesi |
|
Organism-specific databases
| RGDi | 2085 Alb |
Pathology & Biotechi
Protein family/group databases
| Allergomei | 756 Rat n 4 |
Chemistry databases
| ChEMBLi | CHEMBL4817 |
PTM / Processingi
Molecule processing
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Signal peptidei | 1 – 18 | 1 PublicationAdd BLAST | 18 | |
| PropeptideiPRO_0000001079 | 19 – 24 | 1 Publication | 6 | |
| ChainiPRO_0000001080 | 25 – 608 | Serum albuminAdd BLAST | 584 |
Amino acid modifications
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Modified residuei | 29 | PhosphoserineBy similarity | 1 | |
| Disulfide bondi | 77 ↔ 86 | PROSITE-ProRule annotation | ||
| Modified residuei | 89 | PhosphoserineBy similarity | 1 | |
| Disulfide bondi | 99 ↔ 115 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 114 ↔ 125 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 148 ↔ 193 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 192 ↔ 201 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 224 ↔ 270 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 269 ↔ 277 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 289 ↔ 303 | PROSITE-ProRule annotation | ||
| Modified residuei | 297 | PhosphoserineBy similarity | 1 | |
| Disulfide bondi | 302 ↔ 313 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 340 ↔ 385 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 384 ↔ 393 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 416 ↔ 462 | PROSITE-ProRule annotation | ||
| Modified residuei | 443 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 444 | PhosphothreonineBy similarity | 1 | |
| Modified residuei | 446 | PhosphothreonineBy similarity | 1 | |
| Modified residuei | 460 | N6-succinyllysineBy similarity | 1 | |
| Disulfide bondi | 461 ↔ 472 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 485 ↔ 501 | PROSITE-ProRule annotation | ||
| Disulfide bondi | 500 ↔ 511 | PROSITE-ProRule annotation | ||
| Modified residuei | 513 | PhosphoserineBy similarity | 1 | |
| Disulfide bondi | 538 ↔ 583 | PROSITE-ProRule annotation | ||
| Modified residuei | 543 | N6-succinyllysineBy similarity | 1 | |
| Modified residuei | 558 | N6-methyllysineBy similarity | 1 | |
| Modified residuei | 570 | PhosphothreonineCombined sources | 1 | |
| Disulfide bondi | 582 ↔ 591 | PROSITE-ProRule annotation | ||
| Modified residuei | 588 | N6-succinyllysineBy similarity | 1 |
Post-translational modificationi
Phosphorylated by FAM20C in the extracellular medium.By similarity
Keywords - PTMi
Cleavage on pair of basic residues, Disulfide bond, Methylation, PhosphoproteinProteomic databases
| PaxDbi | P02770 |
| PRIDEi | P02770 |
2D gel databases
| UCD-2DPAGEi | P02770 |
| World-2DPAGEi | 0004:P02770 |
PTM databases
| CarbonylDBi | P02770 |
| iPTMneti | P02770 |
| PhosphoSitePlusi | P02770 |
| SwissPalmi | P02770 |
Expressioni
Tissue specificityi
Plasma.
Interactioni
GO - Molecular functioni
- enzyme binding Source: RGD
Protein-protein interaction databases
| CORUMi | P02770 |
| IntActi | P02770, 2 interactors |
| STRINGi | 10116.ENSRNOP00000003921 |
Chemistry databases
| BindingDBi | P02770 |
Structurei
3D structure databases
| ProteinModelPortali | P02770 |
| SMRi | P02770 |
| ModBasei | Search... |
| MobiDBi | Search... |
Family & Domainsi
Domains and Repeats
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Domaini | 19 – 211 | Albumin 1PROSITE-ProRule annotationAdd BLAST | 193 | |
| Domaini | 212 – 403 | Albumin 2PROSITE-ProRule annotationAdd BLAST | 192 | |
| Domaini | 404 – 601 | Albumin 3PROSITE-ProRule annotationAdd BLAST | 198 |
Sequence similaritiesi
Belongs to the ALB/AFP/VDB family.PROSITE-ProRule annotation
Keywords - Domaini
Repeat, SignalPhylogenomic databases
| eggNOGi | ENOG410IIRZ Eukaryota ENOG410Z40H LUCA |
| HOGENOMi | HOG000293137 |
| HOVERGENi | HBG004207 |
| InParanoidi | P02770 |
| KOi | K16141 |
| PhylomeDBi | P02770 |
| TreeFami | TF335561 |
Family and domain databases
| CDDi | cd00015 ALBUMIN, 3 hits |
| InterProi | View protein in InterPro IPR000264 ALB/AFP/VDB IPR020858 Serum_albumin-like IPR021177 Serum_albumin/AFP/Afamin IPR020857 Serum_albumin_CS IPR014760 Serum_albumin_N |
| PANTHERi | PTHR11385 PTHR11385, 1 hit |
| Pfami | View protein in Pfam PF00273 Serum_albumin, 3 hits |
| PIRSFi | PIRSF002520 Serum_albumin_subgroup, 1 hit |
| PRINTSi | PR00802 SERUMALBUMIN |
| SMARTi | View protein in SMART SM00103 ALBUMIN, 3 hits |
| SUPFAMi | SSF48552 SSF48552, 3 hits |
| PROSITEi | View 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
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
Computationally mapped potential isoform sequencesi
There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket| A0A0G2JSH5 | A0A0G2JSH5_RAT | Serum albumin | Alb | 608 | Annotation score: |
Experimental Info
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Sequence conflicti | 174 | Y → L AA sequence (PubMed:2437111).Curated | 1 | |
| Sequence conflicti | 317 | I → T in CAA24532 (PubMed:7017712).Curated | 1 | |
| Sequence conflicti | 431 | V → I in AAH85359 (PubMed:15489334).Curated | 1 |
Natural variant
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Natural varianti | 262 | V → L1 Publication | 1 |
Sequence databases
| Select the link destinations: EMBLi GenBanki DDBJi Links Updated | V01222 mRNA Translation: CAA24532.1 BC085359 mRNA Translation: AAH85359.1 |
| PIRi | A93872 ABRTS |
| RefSeqi | NP_599153.2, NM_134326.2 |
| UniGenei | Rn.202968 Rn.49051 |
Genome annotation databases
| GeneIDi | 24186 |
| KEGGi | rno:24186 |
| UCSCi | RGD:2085 rat |
Keywords - Coding sequence diversityi
PolymorphismSimilar proteinsi
Entry informationi
| Entry namei | ALBU_RAT | |
| Accessioni | P02770Primary (citable) accession number: P02770 Secondary accession number(s): P11382, Q5U3X3 | |
| Entry historyi | Integrated 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 statusi | Reviewed (UniProtKB/Swiss-Prot) | |
| Annotation program | Chordata Protein Annotation Program | |



