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Protein

Amyloid-like protein 2

Gene

Aplp2

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

Functioni

May play a role in the regulation of hemostasis. The soluble form may have inhibitory properties towards coagulation factors. May interact with cellular G-protein signaling pathways. May bind to the DNA 5'-GTCACATG-3'(CDEI box). Inhibits trypsin, chymotrypsin, plasmin, factor XIA and plasma and glandular kallikrein. Modulates the Cu/Zn nitric oxide-catalyzed autodegradation of GPC1 heparan sulfate side chains in fibroblasts (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei322 – 323Reactive bondBy similarity2

GO - Molecular functioni

Keywordsi

Molecular functionProtease inhibitor, Serine protease inhibitor

Protein family/group databases

MEROPSiI02.016

Names & Taxonomyi

Protein namesi
Recommended name:
Amyloid-like protein 2
Short name:
APLP-2
Alternative name(s):
Sperm membrane protein YWK-II
Gene namesi
Name:Aplp2
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi2128 Aplp2

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini32 – 695ExtracellularSequence analysisAdd BLAST664
Transmembranei696 – 718HelicalSequence analysisAdd BLAST23
Topological domaini719 – 765CytoplasmicSequence analysisAdd BLAST47

Keywords - Cellular componenti

Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 31Sequence analysisAdd BLAST31
ChainiPRO_000000020932 – 765Amyloid-like protein 2Add BLAST734

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei216PhosphoserineCombined sources1
Disulfide bondi312 ↔ 362PROSITE-ProRule annotation
Disulfide bondi321 ↔ 345PROSITE-ProRule annotation
Disulfide bondi337 ↔ 358PROSITE-ProRule annotation
Modified residuei592PhosphoserineBy similarity1
Glycosylationi628O-linked (Xyl...) (glycosaminoglycan) serineSequence analysis1

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein, Proteoglycan

Proteomic databases

PaxDbiP15943
PRIDEiP15943

PTM databases

iPTMnetiP15943
PhosphoSitePlusiP15943

Interactioni

Subunit structurei

Interacts with CPEB1. Interacts (via NPXY motif) with DAB2 (via PID domain); the interaction is impaired by tyrosine phosphorylation of the NPXY motif (By similarity).By similarity

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000067835

Structurei

3D structure databases

ProteinModelPortaliP15943
SMRiP15943
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini308 – 366BPTI/Kunitz inhibitorPROSITE-ProRule annotationAdd BLAST59

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni751 – 765Interaction with DAB2By similarityAdd BLAST15

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi752 – 757NPXY motif6

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Compositional biasi218 – 282Asp/Glu-rich (highly acidic)Add BLAST65
Compositional biasi218 – 229Poly-GluAdd BLAST12

Sequence similaritiesi

Belongs to the APP family.Curated

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiKOG3540 Eukaryota
ENOG410ZW2A LUCA
HOVERGENiHBG000051
InParanoidiP15943
PhylomeDBiP15943

Family and domain databases

CDDicd00109 KU, 1 hit
Gene3Di1.20.120.770, 1 hit
2.30.29.30, 1 hit
3.30.1490.140, 1 hit
3.90.570.10, 1 hit
4.10.410.10, 1 hit
InterProiView protein in InterPro
IPR036669 Amyloid_Cu-bd_sf
IPR008155 Amyloid_glyco
IPR011178 Amyloid_glyco_Cu-bd
IPR024329 Amyloid_glyco_E2_domain
IPR008154 Amyloid_glyco_extra
IPR019744 Amyloid_glyco_extracell_CS
IPR015849 Amyloid_glyco_heparin-bd
IPR036454 Amyloid_glyco_heparin-bd_sf
IPR019745 Amyloid_glyco_intracell_CS
IPR019543 APP_amyloid_C
IPR036176 E2_sf
IPR002223 Kunitz_BPTI
IPR036880 Kunitz_BPTI_sf
IPR011993 PH-like_dom_sf
IPR020901 Prtase_inh_Kunz-CS
PANTHERiPTHR23103 PTHR23103, 1 hit
PfamiView protein in Pfam
PF10515 APP_amyloid, 1 hit
PF12924 APP_Cu_bd, 1 hit
PF12925 APP_E2, 1 hit
PF02177 APP_N, 1 hit
PF00014 Kunitz_BPTI, 1 hit
PRINTSiPR00203 AMYLOIDA4
PR00759 BASICPTASE
SMARTiView protein in SMART
SM00006 A4_EXTRA, 1 hit
SM00131 KU, 1 hit
SUPFAMiSSF109843 SSF109843, 1 hit
SSF56491 SSF56491, 1 hit
SSF57362 SSF57362, 1 hit
SSF89811 SSF89811, 1 hit
PROSITEiView protein in PROSITE
PS00319 A4_EXTRA, 1 hit
PS00320 A4_INTRA, 1 hit
PS00280 BPTI_KUNITZ_1, 1 hit
PS50279 BPTI_KUNITZ_2, 1 hit

Sequences (4)i

Sequence statusi: Complete.

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

This entry describes 4 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform A (identifier: P15943-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MAATGTAAAA ATGKLLVLLL LGLTAPAAAL AGYIEALAAN AGTGFAVAEP
60 70 80 90 100
QIAMFCGKLN MHVNIQTGKW EPDPTGTKSC LGTKEEVLQY CQEIYPELQI
110 120 130 140 150
TNVMEANQPV NIDSWCRRDK KQCRSHIVIP FKCLVGEFVS DVLLVPENCQ
160 170 180 190 200
FFHQERMEVC EKHQRWHTVV KEACLTEGMT LYSYGMLLPC GVDQFHGTEY
210 220 230 240 250
VCCPQTKVVD SDSTMSKEEE EEEEEDEEED YALDKSEFPT EADLEDFTEA
260 270 280 290 300
AADEDEDEEE EEEEEGEEVV EDRDYYYDSF KGDDYNEENP TEPSSDGTIS
310 320 330 340 350
DKEIAHDVKA VCSQEAMTGP CRAVMPRWYF DLSKGKCVRF IYGGCGGNRN
360 370 380 390 400
NFESEDYCMA VCKTMIPPTP LPTNDVDVYF ETSADDNEHA RFQKAKEQLE
410 420 430 440 450
IRHRSRMDRV KKEWEEAELQ AKNLPKAERQ TLIQHFQAMV KALEKEAASE
460 470 480 490 500
KQQLVETHLA RVEAMLNDRR RIALENYLAA LQSDPPRPHR ILQALRRYVR
510 520 530 540 550
AENKDRLHTI RHYQHVLAVD PEKAAQMKSQ VMTHLHVIEE RRNQSLSLLY
560 570 580 590 600
KVPYVAQEIQ EEIDELLQEQ RADMDQFTSS ISENPVDVRV SSEESEEIPP
610 620 630 640 650
FHPFHPFPSL SENEDTQPEL YHPMKKGSGM AEQDGGLIGA EEKVINSKNK
660 670 680 690 700
MDENMVIDET LDVKEMIFNA ERVGGLEEEP DSVGPLREDF SLSSSALIGL
710 720 730 740 750
LVIAVAIATV IVISLVMLRK RQYGTISHGI VEVHPMLTPE ERHLNKMQNH
760
GYENPTYKYL EQMQI
Length:765
Mass (Da):86,883
Last modified:October 1, 1996 - v2
Checksum:iCF51FCCCE305A0CF
GO
Isoform B (identifier: P15943-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     616-627: Missing.

Show »
Length:753
Mass (Da):85,472
Checksum:iA0343F35E7BE80FA
GO
Isoform C (identifier: P15943-3) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     311-365: Missing.

Show »
Length:710
Mass (Da):80,688
Checksum:iE000C3BD6726E579
GO
Isoform D (identifier: P15943-4) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     311-365: Missing.
     616-627: Missing.

Show »
Length:698
Mass (Da):79,278
Checksum:iDB63549BF92F0AB8
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti575 – 577DQF → EFV in AAA42352 (PubMed:1690887).Curated3

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Alternative sequenceiVSP_000020311 – 365Missing in isoform C and isoform D. CuratedAdd BLAST55
Alternative sequenceiVSP_000021616 – 627Missing in isoform B and isoform D. CuratedAdd BLAST12

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X77934 mRNA Translation: CAA54906.1
M31322 mRNA Translation: AAA42352.1
PIRiA35981
S42880
UniGeneiRn.129285
Rn.1423

Keywords - Coding sequence diversityi

Alternative splicing

Similar proteinsi

Entry informationi

Entry nameiAPLP2_RAT
AccessioniPrimary (citable) accession number: P15943
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 1, 1990
Last sequence update: October 1, 1996
Last modified: May 23, 2018
This is version 136 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, Reference proteome

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