1B3U - JenaLib

Asym.Unit - manually (Jmol Viewer)

Asymmetric Unit (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF CONSTANT REGULATORY DOMAIN OF HUMAN PP2A, PR65ALPHA

Authors :   M. R. Groves, N. Hanlon, P. Turowski, B. Hemmings, D. Barford

Date :   14 Dec 98 (Deposition) - 12 Apr 99 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.30

Chains :   Asym. Unit : A,B
Biol. Unit 1: A  (1x)
Biol. Unit 2: B  (1x)

Keywords :   Scaffold Protein, Pp2A, Phosphorylation, Heat Repeat (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. R. Groves, N. Hanlon, P. Turowski, B. A. Hemmings, D. Barford
The Structure Of The Protein Phosphatase 2A Pr65/A Subunit Reveals The Conformation Of Its 15 Tandemly Repeated Heat Motifs.
Cell(Cambridge, Mass. ) V. 96 99 1999
PubMed-ID: 9989501 | Reference-DOI: 10.1016/S0092-8674(00)80963-0
(for further references see the PDB file header)

Molecule 1 - PROTEIN (PROTEIN PHOSPHATASE PP2A)
	Chains	:	A, B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Cell Line	:	B834
	Expression System Plasmid	:	PET28-M
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Fragment	:	65 KD REGULATORY SUBUNIT
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Other Details	:	ALPHA ISOFORM

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A
Biological Unit 2 (1x)	:		B

Summary Information (see also Sequences/Alignments below)

(no "Ligand,Modified Residues,Ions" information available for 1B3U)

(no "Site" information available for 1B3U)

(no "SS Bond" information available for 1B3U)

(no "Cis Peptide Bond" information available for 1B3U)

Asymmetric Unit (4, 8)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073718	V	132	L	2AAA_HUMAN	Disease (MRD36)	---	A/B	V	131	L
2	UniProt	VAR_074488	P	179	L	2AAA_HUMAN	Disease (MRD36)	786205228	A/B	P	178	L
3	UniProt	VAR_074489	R	182	W	2AAA_HUMAN	Disease (MRD36)	786205227	A/B	R	181	W
4	UniProt	VAR_074490	R	258	H	2AAA_HUMAN	Disease (MRD36)	863225094	A/B	R	257	H

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 1 (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073718	V	132	L	2AAA_HUMAN	Disease (MRD36)	---	A	V	131	L
2	UniProt	VAR_074488	P	179	L	2AAA_HUMAN	Disease (MRD36)	786205228	A	P	178	L
3	UniProt	VAR_074489	R	182	W	2AAA_HUMAN	Disease (MRD36)	786205227	A	R	181	W
4	UniProt	VAR_074490	R	258	H	2AAA_HUMAN	Disease (MRD36)	863225094	A	R	257	H

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 2 (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073718	V	132	L	2AAA_HUMAN	Disease (MRD36)	---	B	V	131	L
2	UniProt	VAR_074488	P	179	L	2AAA_HUMAN	Disease (MRD36)	786205228	B	P	178	L
3	UniProt	VAR_074489	R	182	W	2AAA_HUMAN	Disease (MRD36)	786205227	B	R	181	W
4	UniProt	VAR_074490	R	258	H	2AAA_HUMAN	Disease (MRD36)	863225094	B	R	257	H

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric Unit (1, 22)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	HEAT_REPEAT	PS50077	HEAT repeat profile.	2AAA_HUMAN	12-50 89-127 166-204 205-243 244-282 283-320 326-364 365-403 404-442 521-559 560-589	22	A:11-49 B:11-49 A:88-126 B:88-126 A:165-203 B:165-203 A:204-242 B:204-242 A:243-281 B:243-281 A:282-319 B:282-319 A:325-363 B:325-363 A:364-402 B:364-402 A:403-441 B:403-441 A:520-558 B:520-558 A:559-588 B:559-588

Biological Unit 1 (1, 11)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	HEAT_REPEAT	PS50077	HEAT repeat profile.	2AAA_HUMAN	12-50 89-127 166-204 205-243 244-282 283-320 326-364 365-403 404-442 521-559 560-589	11	A:11-49 - A:88-126 - A:165-203 - A:204-242 - A:243-281 - A:282-319 - A:325-363 - A:364-402 - A:403-441 - A:520-558 - A:559-588 -

Biological Unit 2 (1, 11)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	HEAT_REPEAT	PS50077	HEAT repeat profile.	2AAA_HUMAN	12-50 89-127 166-204 205-243 244-282 283-320 326-364 365-403 404-442 521-559 560-589	11	- B:11-49 - B:88-126 - B:165-203 - B:204-242 - B:243-281 - B:282-319 - B:325-363 - B:364-402 - B:403-441 - B:520-558 - B:559-588

Asymmetric Unit (15, 30)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1c	ENST00000322088	1c	ENSE00001820117	chr19:52693292-52693427	136	2AAA_HUMAN	1-26	26	2	A:1-25 B:1-25	25 25
1.5d	ENST00000322088	5d	ENSE00001746666	chr19:52705197-52705287	91	2AAA_HUMAN	27-57	31	2	A:26-56 B:26-56	31 31
1.6b	ENST00000322088	6b	ENSE00001693396	chr19:52709216-52709316	101	2AAA_HUMAN	57-90	34	2	A:56-89 B:56-89	34 34
1.7d	ENST00000322088	7d	ENSE00000724168	chr19:52714513-52714745	233	2AAA_HUMAN	91-168	78	2	A:90-167 B:90-167	78 78
1.8b	ENST00000322088	8b	ENSE00000724167	chr19:52715939-52716086	148	2AAA_HUMAN	168-217	50	2	A:167-216 B:167-216	50 50
1.8d	ENST00000322088	8d	ENSE00001673245	chr19:52716208-52716363	156	2AAA_HUMAN	218-269	52	2	A:217-268 B:217-268	52 52
1.9b	ENST00000322088	9b	ENSE00000724163	chr19:52719032-52719146	115	2AAA_HUMAN	270-308	39	2	A:269-307 B:269-307	39 39
1.10	ENST00000322088	10	ENSE00000724161	chr19:52719257-52719327	71	2AAA_HUMAN	308-331	24	2	A:307-330 B:307-330	24 24
1.11	ENST00000322088	11	ENSE00000724160	chr19:52719782-52719916	135	2AAA_HUMAN	332-376	45	2	A:331-375 B:331-375	45 45
1.12b	ENST00000322088	12b	ENSE00001593015	chr19:52722944-52723117	174	2AAA_HUMAN	377-434	58	2	A:376-433 B:376-433	58 58
1.13	ENST00000322088	13	ENSE00000724154	chr19:52723442-52723502	61	2AAA_HUMAN	435-455	21	2	A:434-454 B:434-454	21 21
1.14a	ENST00000322088	14a	ENSE00000724153	chr19:52724232-52724386	155	2AAA_HUMAN	455-506	52	2	A:454-505 B:454-505	52 52
1.15	ENST00000322088	15	ENSE00000724151	chr19:52725352-52725494	143	2AAA_HUMAN	507-554	48	2	A:506-553 B:506-553	48 48
1.16	ENST00000322088	16	ENSE00001282651	chr19:52728970-52729061	92	2AAA_HUMAN	554-585	32	2	A:553-584 B:553-584	32 32
1.17b	ENST00000322088	17b	ENSE00001928382	chr19:52729218-52730687	1470	2AAA_HUMAN	585-589	5	2	A:584-588 B:584-588	5 5

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:588
 aligned with 2AAA_HUMAN | P30153 from UniProtKB/Swiss-Prot  Length:589

    Alignment length:588
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581        
           2AAA_HUMAN     2 AAADGDDSLYPIAVLIDELRNEDVQLRLNSIKKLSTIALALGVERTRSELLPFLTDTIYDEDEVLLALAEQLGTFTTLVGGPEYVHCLLPPLESLATVEETVVRDKAVESLRAISHEHSPSDLEAHFVPLVKRLAGGDWFTSRTSACGLFSVCYPRVSSAVKAELRQYFRNLCSDDTPMVRRAAASKLGEFAKVLELDNVKSEIIPMFSNLASDEQDSVRLLAVEACVNIAQLLPQEDLEALVMPTLRQAAEDKSWRVRYMVADKFTELQKAVGPEITKTDLVPAFQNLMKDCEAEVRAAASHKVKEFCENLSADCRENVIMSQILPCIKELVSDANQHVKSALASVIMGLSPILGKDNTIEHLLPLFLAQLKDECPEVRLNIISNLDCVNEVIGIRQLSQSLLPAIVELAEDAKWRVRLAIIEYMPLLAGQLGVEFFDEKLNSLCMAWLVDHVYAIREAATSNLKKLVEKFGKEWAHATIIPKVLAMSGDPNYLHRMTTLFCINVLSEVCGQDITTKHMLPTVLRMAGDPVANVRFNVAKSLQKIGPILDNSTLQSEVKPILEKLTQDQDVDVKYFAQEALTVLSLA 589
               SCOP domains d1b3ua_ A: Constant regulatory domain of protein phosphatase 2a, pr65alpha                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains 1b3uA00 A:1-588 Leucine-rich Repeat Variant                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .........hhhhhhhhhhh...hhhhhhhhhhhhhhhhh..hhhhhh.hhhhhhh.....hhhhhhhhhhhhh..hhh..hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh..hhhhhh.hhhhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh..hhhhhh.hhhhhhhhhh...hhhhhhhhhhhhhhhhh..hhhhhhh.hhhhhhhh....hhhhhhhhhhhhhhhhhh.hhhhhh.hhhhhhhhhh...hhhhhhhhhhhhhhhh......hhhhhhh.hhhhhhhhhh...hhhhhhhh..hhhhhhhh.hhhhhhh.hhhhhhhh....hhhhhhhhhh.hhhhhh..hhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.hhh..hhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.hhhhhhh.hhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhh...hhhhhhhhhhhhhhhhh..hhhhhh.hhhhhhhhhh...hhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------L----------------------------------------------L--W---------------------------------------------------------------------------H------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------HEAT_REPEAT  PDB: A:11-49              --------------------------------------HEAT_REPEAT  PDB: A:88-126             --------------------------------------HEAT_REPEAT  PDB: A:165-203            HEAT_REPEAT  PDB: A:204-242            HEAT_REPEAT  PDB: A:243-281            HEAT_REPEAT  PDB: A:282-319           -----HEAT_REPEAT  PDB: A:325-363            HEAT_REPEAT  PDB: A:364-402            HEAT_REPEAT  PDB: A:403-441            ------------------------------------------------------------------------------HEAT_REPEAT  PDB: A:520-558            HEAT_REPEAT  PDB: A:559-588    PROSITE
           Transcript 1 (1) Exon 1.1c  PDB: A:1-25   Exon 1.5d  PDB: A:26-56        ---------------------------------Exon 1.7d  PDB: A:90-167 UniProt: 91-168                                      -------------------------------------------------Exon 1.8d  PDB: A:217-268 UniProt: 218-269          --------------------------------------Exon 1.10  PDB: A:307-33Exon 1.11  PDB: A:331-375 UniProt: 332-376   Exon 1.12b  PDB: A:376-433 UniProt: 377-434               Exon 1.13            ---------------------------------------------------Exon 1.15  PDB: A:506-553 UniProt: 507-554      ------------------------------1.17b Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------Exon 1.6b  PDB: A:56-89           -----------------------------------------------------------------------------Exon 1.8b  PDB: A:167-216 UniProt: 168-217        ----------------------------------------------------Exon 1.9b  PDB: A:269-307              --------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.14a  PDB: A:454-505 UniProt: 455-506         -----------------------------------------------Exon 1.16  PDB: A:553-584       ---- Transcript 1 (2)
                 1b3u A   1 AAADGDDSLYPIAVLIDELRNEDVQLRLNSIKKLSTIALALGVERTRSELLPFLTDTIYDEDEVLLALAEQLGTFTTLVGGPEYVHCLLPPLESLATVEETVVRDKAVESLRAISHEHSPSDLEAHFVPLVKRLAGGDWFTSRTSACGLFSVCYPRVSSAVKAELRQYFRNLCSDDTPMVRRAAASKLGEFAKVLELDNVKSEIIPMFSNLASDEQDSVRLLAVEACVNIAQLLPQEDLEALVMPTLRQAAEDKSWRVRYMVADKFTELQKAVGPEITKTDLVPAFQNLMKDCEAEVRAAASHKVKEFCENLSADCRENVIMSQILPCIKELVSDANQHVKSALASVIMGLSPILGKDNTIEHLLPLFLAQLKDECPEVRLNIISNLDCVNEVIGIRQLSQSLLPAIVELAEDAKWRVRLAIIEYMPLLAGQLGVEFFDEKLNSLCMAWLVDHVYAIREAATSNLKKLVEKFGKEWAHATIIPKVLAMSGDPNYLHRMTTLFCINVLSEVCGQDITTKHMLPTVLRMAGDPVANVRFNVAKSLQKIGPILDNSTLQSEVKPILEKLTQDQDVDVKYFAQEALTVLSLA 588
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560       570       580

Chain B from PDB  Type:PROTEIN  Length:588
 aligned with 2AAA_HUMAN | P30153 from UniProtKB/Swiss-Prot  Length:589

    Alignment length:588
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581        
           2AAA_HUMAN     2 AAADGDDSLYPIAVLIDELRNEDVQLRLNSIKKLSTIALALGVERTRSELLPFLTDTIYDEDEVLLALAEQLGTFTTLVGGPEYVHCLLPPLESLATVEETVVRDKAVESLRAISHEHSPSDLEAHFVPLVKRLAGGDWFTSRTSACGLFSVCYPRVSSAVKAELRQYFRNLCSDDTPMVRRAAASKLGEFAKVLELDNVKSEIIPMFSNLASDEQDSVRLLAVEACVNIAQLLPQEDLEALVMPTLRQAAEDKSWRVRYMVADKFTELQKAVGPEITKTDLVPAFQNLMKDCEAEVRAAASHKVKEFCENLSADCRENVIMSQILPCIKELVSDANQHVKSALASVIMGLSPILGKDNTIEHLLPLFLAQLKDECPEVRLNIISNLDCVNEVIGIRQLSQSLLPAIVELAEDAKWRVRLAIIEYMPLLAGQLGVEFFDEKLNSLCMAWLVDHVYAIREAATSNLKKLVEKFGKEWAHATIIPKVLAMSGDPNYLHRMTTLFCINVLSEVCGQDITTKHMLPTVLRMAGDPVANVRFNVAKSLQKIGPILDNSTLQSEVKPILEKLTQDQDVDVKYFAQEALTVLSLA 589
               SCOP domains d1b3ub_ B: Constant regulatory domain of protein phosphatase 2a, pr65alpha                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains 1b3uB00 B:1-588 Leucine-rich Repeat Variant                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhh.....hhhhhhhhh.....hhhhhhhhhhhhhhhhh..hhhhhh.hhhhhhh.....hhhhhhhhhhhhh..hhh.....hhhhhhhhhhh.....hhhhhhhhhhhhhhhhh..hhhhhh.hhhhhhhhh....hhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh..hhhhhhh.hhhhhhhh....hhhhhhhhh.hhhhhhhh.hhhhhh.hhhhhhhhh....hhhhhhhhhhhhhhhhh.....hhhhhhh.hhhhhhhhhh...hhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhh....hhhhhhhhh..hhhhhh..hhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.hhh..hhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.hhhhhhh.hhhhhhh.....hhhhhhhhhhhhhhhhhh.hhhhhhh.hhhhhhhhh...hhhhhhhhhhhhhhhhh..hhhhhh.hhhhhhhh.........hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------L----------------------------------------------L--W---------------------------------------------------------------------------H------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------HEAT_REPEAT  PDB: B:11-49              --------------------------------------HEAT_REPEAT  PDB: B:88-126             --------------------------------------HEAT_REPEAT  PDB: B:165-203            HEAT_REPEAT  PDB: B:204-242            HEAT_REPEAT  PDB: B:243-281            HEAT_REPEAT  PDB: B:282-319           -----HEAT_REPEAT  PDB: B:325-363            HEAT_REPEAT  PDB: B:364-402            HEAT_REPEAT  PDB: B:403-441            ------------------------------------------------------------------------------HEAT_REPEAT  PDB: B:520-558            HEAT_REPEAT  PDB: B:559-588    PROSITE
           Transcript 1 (1) Exon 1.1c  PDB: B:1-25   Exon 1.5d  PDB: B:26-56        ---------------------------------Exon 1.7d  PDB: B:90-167 UniProt: 91-168                                      -------------------------------------------------Exon 1.8d  PDB: B:217-268 UniProt: 218-269          --------------------------------------Exon 1.10  PDB: B:307-33Exon 1.11  PDB: B:331-375 UniProt: 332-376   Exon 1.12b  PDB: B:376-433 UniProt: 377-434               Exon 1.13            ---------------------------------------------------Exon 1.15  PDB: B:506-553 UniProt: 507-554      ------------------------------1.17b Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------Exon 1.6b  PDB: B:56-89           -----------------------------------------------------------------------------Exon 1.8b  PDB: B:167-216 UniProt: 168-217        ----------------------------------------------------Exon 1.9b  PDB: B:269-307              --------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.14a  PDB: B:454-505 UniProt: 455-506         -----------------------------------------------Exon 1.16  PDB: B:553-584       ---- Transcript 1 (2)
                 1b3u B   1 AAADGDDSLYPIAVLIDELRNEDVQLRLNSIKKLSTIALALGVERTRSELLPFLTDTIYDEDEVLLALAEQLGTFTTLVGGPEYVHCLLPPLESLATVEETVVRDKAVESLRAISHEHSPSDLEAHFVPLVKRLAGGDWFTSRTSACGLFSVCYPRVSSAVKAELRQYFRNLCSDDTPMVRRAAASKLGEFAKVLELDNVKSEIIPMFSNLASDEQDSVRLLAVEACVNIAQLLPQEDLEALVMPTLRQAAEDKSWRVRYMVADKFTELQKAVGPEITKTDLVPAFQNLMKDCEAEVRAAASHKVKEFCENLSADCRENVIMSQILPCIKELVSDANQHVKSALASVIMGLSPILGKDNTIEHLLPLFLAQLKDECPEVRLNIISNLDCVNEVIGIRQLSQSLLPAIVELAEDAKWRVRLAIIEYMPLLAGQLGVEFFDEKLNSLCMAWLVDHVYAIREAATSNLKKLVEKFGKEWAHATIIPKVLAMSGDPNYLHRMTTLFCINVLSEVCGQDITTKHMLPTVLRMAGDPVANVRFNVAKSLQKIGPILDNSTLQSEVKPILEKLTQDQDVDVKYFAQEALTVLSLA 588
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560       570       580

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: alpha-alpha superhelix (690)

Superfamily: ARM repeat (317)

Family: HEAT repeat (15)

Protein domain: Constant regulatory domain of protein phosphatase 2a, pr65alpha (14)

Human (Homo sapiens) [TaxId: 9606] (12)

1a	d1b3ua_	A:
1b	d1b3ub_	B:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Alpha Horseshoe (399)

Topology: Leucine-rich Repeat Variant (77)

Homologous Superfamily: Leucine-rich Repeat Variant (75)

Human (Homo sapiens) (30)

1a	1b3uA00	A:1-588
1b	1b3uB00	B:1-588

(no "Pfam Domain" information available for 1B3U)

Asymmetric Unit(hide GO term definitions)

Chain A,B (2AAA_HUMAN | P30153)

molecular function
	GO:0003823	antigen binding	Interacting selectively and non-covalently with an antigen, any substance which is capable of inducing a specific immune response and of reacting with the products of that response, the specific antibody or specifically sensitized T-lymphocytes, or both. Binding may counteract the biological activity of the antigen.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0046982	protein heterodimerization activity	Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
	GO:0004722	protein serine/threonine phosphatase activity	Catalysis of the reaction: protein serine phosphate + H2O = protein serine + phosphate, and protein threonine phosphate + H2O = protein threonine + phosphate.
biological process
	GO:0000086	G2/M transition of mitotic cell cycle	The mitotic cell cycle transition by which a cell in G2 commits to M phase. The process begins when the kinase activity of M cyclin/CDK complex reaches a threshold high enough for the cell cycle to proceed. This is accomplished by activating a positive feedback loop that results in the accumulation of unphosphorylated and active M cyclin/CDK complex.
	GO:0008380	RNA splicing	The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
	GO:0006915	apoptotic process	A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
	GO:0006672	ceramide metabolic process	The chemical reactions and pathways involving ceramides, any N-acylated sphingoid.
	GO:0007059	chromosome segregation	The process in which genetic material, in the form of chromosomes, is organized into specific structures and then physically separated and apportioned to two or more sets. In eukaryotes, chromosome segregation begins with the condensation of chromosomes, includes chromosome separation, and ends when chromosomes have completed movement to the spindle poles.
	GO:0007143	female meiotic nuclear division	A cell cycle process by which the cell nucleus divides as part of a meiotic cell cycle in the female germline.
	GO:0000188	inactivation of MAPK activity	Any process that terminates the activity of the active enzyme MAP kinase.
	GO:0051754	meiotic sister chromatid cohesion, centromeric	The cell cycle process in which centromeres of sister chromatids are joined during meiosis.
	GO:0051232	meiotic spindle elongation	The lengthening of the distance between poles of the spindle during a meiotic cell cycle.
	GO:0007084	mitotic nuclear envelope reassembly	The cell cycle process that results in reformation of the nuclear envelope during mitotic cell division.
	GO:0051306	mitotic sister chromatid separation	The process in which sister chromatids are physically detached from each other during mitosis.
	GO:0030308	negative regulation of cell growth	Any process that stops, prevents, or reduces the frequency, rate, extent or direction of cell growth.
	GO:0000184	nuclear-transcribed mRNA catabolic process, nonsense-mediated decay	The nonsense-mediated decay pathway for nuclear-transcribed mRNAs degrades mRNAs in which an amino-acid codon has changed to a nonsense codon; this prevents the translation of such mRNAs into truncated, and potentially harmful, proteins.
	GO:0070262	peptidyl-serine dephosphorylation	The removal of phosphoric residues from peptidyl-O-phospho-L-serine to form peptidyl-serine.
	GO:2001241	positive regulation of extrinsic apoptotic signaling pathway in absence of ligand	Any process that activates or increases the frequency, rate or extent of extrinsic apoptotic signaling pathway in absence of ligand.
	GO:0006461	protein complex assembly	The aggregation, arrangement and bonding together of a set of components to form a protein complex.
	GO:0006470	protein dephosphorylation	The process of removing one or more phosphoric residues from a protein.
	GO:0006275	regulation of DNA replication	Any process that modulates the frequency, rate or extent of DNA replication.
	GO:0030111	regulation of Wnt signaling pathway	Any process that modulates the frequency, rate or extent of the activity of the Wnt signal transduction pathway.
	GO:0030155	regulation of cell adhesion	Any process that modulates the frequency, rate or extent of attachment of a cell to another cell or to the extracellular matrix.
	GO:0045595	regulation of cell differentiation	Any process that modulates the frequency, rate or extent of cell differentiation, the process in which relatively unspecialized cells acquire specialized structural and functional features.
	GO:0040008	regulation of growth	Any process that modulates the frequency, rate or extent of the growth of all or part of an organism so that it occurs at its proper speed, either globally or in a specific part of the organism's development.
	GO:1903538	regulation of meiotic cell cycle process involved in oocyte maturation	Any process that modulates the frequency, rate or extent of meiotic cell cycle process involved in oocyte maturation.
	GO:0006355	regulation of transcription, DNA-templated	Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0010033	response to organic substance	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an organic substance stimulus.
	GO:0019932	second-messenger-mediated signaling	Any intracellular signal transduction in which the signal is passed on within the cell via a second messenger; a small molecule or ion that can be quickly generated or released from intracellular stores, and can diffuse within the cell. Second-messenger signaling includes production or release of the second messenger, and effectors downstream of the second messenger that further transmit the signal within the cell.
cellular component
	GO:0005694	chromosome	A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
	GO:0000775	chromosome, centromeric region	The region of a chromosome that includes the centromeric DNA and associated proteins. In monocentric chromosomes, this region corresponds to a single area of the chromosome, whereas in holocentric chromosomes, it is evenly distributed along the chromosome.
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0070062	extracellular exosome	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0015630	microtubule cytoskeleton	The part of the cytoskeleton (the internal framework of a cell) composed of microtubules and associated proteins.
	GO:0005739	mitochondrion	A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
	GO:0000159	protein phosphatase type 2A complex	A protein complex that has protein serine/threonine phosphatase activity that is polycation-stimulated (PCS), being directly stimulated by protamine, polylysine, or histone H1; it constitutes a subclass of several enzymes activated by different histones and polylysine, and consists of catalytic, scaffolding, and regulatory subunits. The catalytic and scaffolding subunits form the core enzyme, and the holoenzyme also includes the regulatory subunit.

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	2AAA_HUMAN \| P30153	:	2ie3 2ie4 2npp 2nyl 2nym 2pkg 3c5w 3dw8 3k7v 3k7w 4i5l 4i5n 4lac

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