1D3B - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Biological Unit 4 (Jmol Viewer)

Biological Unit 5 (Jmol Viewer)

Biological Unit 6 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF THE D3B SUBCOMPLEX OF THE HUMAN CORE SNRNP DOMAIN AT 2.0A RESOLUTION

Authors :   C. Kambach, S. Walke, J. M. Avis, E. De La Fortelle, J. Li, K. Nagai

Date :   22 Dec 98 (Deposition) - 22 Dec 99 (Release) - 07 Dec 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

Chains :   Asym. Unit : A,B,C,D,E,F,G,H,I,J,K,L
Biol. Unit 1: A,B  (1x)
Biol. Unit 2: C,D  (1x)
Biol. Unit 3: E,F  (1x)
Biol. Unit 4: G,H  (1x)
Biol. Unit 5: I,J  (1x)
Biol. Unit 6: K,L  (1x)

Keywords :   Snrnp, Splicing, Sm, Core Snrnp Domain, Systemic Lupus Erythematosus, Sle, Rna Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   C. Kambach, S. Walke, R. Young, J. M. Avis, E. De La Fortelle, V. A. Raker, R. Luhrmann, J. Li, K. Nagai
Crystal Structures Of Two Sm Protein Complexes And Their Implications For The Assembly Of The Spliceosomal Snrnps.
Cell(Cambridge, Mass. ) V. 96 375 1999
PubMed-ID: 10025403 | Reference-DOI: 10.1016/S0092-8674(00)80550-4
(for further references see the PDB file header)

Molecule 1 - PROTEIN (SMALL NUCLEAR RIBONUCLEOPROTEIN SM D3)
	Cellular Location	:	NUCLEUS
	Chains	:	A, C, E, G, I, K
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Cellular Location	:	CYTOPLASM
	Expression System Plasmid	:	PQE30
	Expression System Strain	:	SG13009
	Expression System Taxid	:	562
	Expression System Vector	:	T5 PROMOTER
	Expression System Vector Type	:	PLASMID
	Fragment	:	SM MOTIF
	Mutation	:	YES
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Other Details	:	N-TERMINAL HIS6 TAG CLEAVED OFF,TRUNCATED AT POSITION 75
	Synonym	:	D3 CORE SNRNP PROTEIN

Molecule 2 - PROTEIN (SMALL NUCLEAR RIBONUCLEOPROTEIN ASSOCIATED PROTEIN B)
	Cellular Location	:	NUCLEUS
	Chains	:	B, D, F, H, J, L
	Fragment	:	SM MOTIF
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Other Details	:	POLYCISTRONIC COEXPRESSION VECTOR WITH SM D3. TRUNCATED AT POSITION 91.
	Synonym	:	B CORE SNRNP PROTEIN

		1	2	3	4	5	6	7	8	9	10	11	12
Asymmetric Unit	:	A	B	C	D	E	F	G	H	I	J	K	L
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (1x)	:			C	D
Biological Unit 3 (1x)	:					E	F
Biological Unit 4 (1x)	:							G	H
Biological Unit 5 (1x)	:									I	J
Biological Unit 6 (1x)	:											K	L

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 17)

No.	Name	Count	Type	Full Name
1	CIT	3	Ligand/Ion	CITRIC ACID
2	GOL	14	Ligand/Ion	GLYCEROL

Biological Unit 1 (2, 5)

No.	Name	Count	Type	Full Name
1	CIT	1	Ligand/Ion	CITRIC ACID
2	GOL	4	Ligand/Ion	GLYCEROL

Biological Unit 2 (1, 2)

No.	Name	Count	Type	Full Name
1	CIT	-1	Ligand/Ion	CITRIC ACID
2	GOL	2	Ligand/Ion	GLYCEROL

Biological Unit 3 (1, 4)

No.	Name	Count	Type	Full Name
1	CIT	-1	Ligand/Ion	CITRIC ACID
2	GOL	4	Ligand/Ion	GLYCEROL

Biological Unit 4 (2, 3)

No.	Name	Count	Type	Full Name
1	CIT	1	Ligand/Ion	CITRIC ACID
2	GOL	2	Ligand/Ion	GLYCEROL

Biological Unit 5 (2, 2)

No.	Name	Count	Type	Full Name
1	CIT	1	Ligand/Ion	CITRIC ACID
2	GOL	1	Ligand/Ion	GLYCEROL

Biological Unit 6 (1, 1)

No.	Name	Count	Type	Full Name
1	CIT	-1	Ligand/Ion	CITRIC ACID
2	GOL	1	Ligand/Ion	GLYCEROL

Asymmetric Unit (17, 17)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	ASN G:23 , THR G:24 , GLY G:25 , ARG G:51 , ARG G:69 , HOH G:713 , HOH G:714 , ARG H:25 , ARG H:49	BINDING SITE FOR RESIDUE CIT G 701
02	AC2	SOFTWARE	SER B:7 , MET B:9 , MET B:38 , LEU B:77 , VAL B:78 , SER B:79 , MET B:80 , HOH B:714 , HOH B:715 , HOH B:718 , GLN C:42 , GLN C:60	BINDING SITE FOR RESIDUE CIT B 702
03	AC3	SOFTWARE	GLU I:21 , ASN I:23 , THR I:24 , GLY I:25 , ARG I:69 , HOH I:724 , HOH I:732 , HOH I:733 , ARG J:25 , ARG J:49	BINDING SITE FOR RESIDUE CIT I 703
04	AC4	SOFTWARE	ASP H:23 , ARG H:49 , HOH H:604 , HOH H:605 , HOH H:622 , HOH H:645	BINDING SITE FOR RESIDUE GOL H 601
05	AC5	SOFTWARE	ILE I:17 , VAL I:18 , THR I:19 , ARG I:29 , ILE I:72 , LEU I:73 , PRO I:74	BINDING SITE FOR RESIDUE GOL I 602
06	AC6	SOFTWARE	ASN G:23 , ARG G:69 , HOH G:743 , LEU H:21 , GLN H:22 , ASP H:23 , ASN H:76	BINDING SITE FOR RESIDUE GOL G 603
07	AC7	SOFTWARE	THR D:2 , HIS D:12 , MET D:17 , MET D:80 , HOH D:624 , HOH D:638	BINDING SITE FOR RESIDUE GOL D 604
08	AC8	SOFTWARE	ARG L:18 , ILE L:28 , GLU L:62	BINDING SITE FOR RESIDUE GOL L 605
09	AC9	SOFTWARE	GOL B:611 , ARG C:51 , ASP C:52	BINDING SITE FOR RESIDUE GOL C 606
10	BC1	SOFTWARE	THR A:47 , THR A:49 , VAL A:55 , ARG L:16 , HOH L:611 , HOH L:653	BINDING SITE FOR RESIDUE GOL A 607
11	BC2	SOFTWARE	ASN A:23 , ARG A:69 , GLN B:22 , ASP B:23 , ASN B:76 , HOH C:614	BINDING SITE FOR RESIDUE GOL B 608
12	BC3	SOFTWARE	ARG F:18 , ILE F:26 , PHE F:48 , GLU F:62 , GOL F:613 , HOH F:658	BINDING SITE FOR RESIDUE GOL F 609
13	BC4	SOFTWARE	ASN E:23 , ARG E:69 , GLN F:22 , ASP F:23 , ASN F:76	BINDING SITE FOR RESIDUE GOL F 610
14	BC5	SOFTWARE	ASP B:23 , ARG B:25 , ARG B:49 , ILE B:51 , HOH B:727 , ASP C:52 , GOL C:606	BINDING SITE FOR RESIDUE GOL B 611
15	BC6	SOFTWARE	GLU E:21 , GLY E:25 , ARG E:69 , HOH E:613 , ARG F:25 , ARG F:49 , HOH F:624 , HOH F:654 , HOH F:664	BINDING SITE FOR RESIDUE GOL E 612
16	BC7	SOFTWARE	PHE F:48 , GLU F:62 , LYS F:64 , GOL F:609 , ARG J:61 , GLU J:63	BINDING SITE FOR RESIDUE GOL F 613
17	BC8	SOFTWARE	ILE A:17 , THR A:19 , ILE A:72 , PRO A:74	BINDING SITE FOR RESIDUE GOL A 614

(no "SS Bond" information available for 1D3B)

(no "Cis Peptide Bond" information available for 1D3B)

Asymmetric Unit (5, 30)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073380	N	55	S	RSMB_HUMAN	Disease (CCMS)	---	B/D/F/H/J/L	N	55	S
2	UniProt	VAR_073381	N	55	T	RSMB_HUMAN	Disease (CCMS)	---	B/D/F/H/J/L	N	55	T
3	UniProt	VAR_073382	S	56	R	RSMB_HUMAN	Disease (CCMS)	---	B/D/F/H/J/L	S	56	R
4	UniProt	VAR_073383	S	56	W	RSMB_HUMAN	Disease (CCMS)	---	B/D/F/H/J/L	S	56	W
5	UniProt	VAR_052274	S	79	P	RSMB_HUMAN	Polymorphism	11545672	B/D/F/H/J/L	S	79	P

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

Biological Unit 1 (5, 5)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073380	N	55	S	RSMB_HUMAN	Disease (CCMS)	---	B	N	55	S
2	UniProt	VAR_073381	N	55	T	RSMB_HUMAN	Disease (CCMS)	---	B	N	55	T
3	UniProt	VAR_073382	S	56	R	RSMB_HUMAN	Disease (CCMS)	---	B	S	56	R
4	UniProt	VAR_073383	S	56	W	RSMB_HUMAN	Disease (CCMS)	---	B	S	56	W
5	UniProt	VAR_052274	S	79	P	RSMB_HUMAN	Polymorphism	11545672	B	S	79	P

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

Biological Unit 2 (5, 5)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073380	N	55	S	RSMB_HUMAN	Disease (CCMS)	---	D	N	55	S
2	UniProt	VAR_073381	N	55	T	RSMB_HUMAN	Disease (CCMS)	---	D	N	55	T
3	UniProt	VAR_073382	S	56	R	RSMB_HUMAN	Disease (CCMS)	---	D	S	56	R
4	UniProt	VAR_073383	S	56	W	RSMB_HUMAN	Disease (CCMS)	---	D	S	56	W
5	UniProt	VAR_052274	S	79	P	RSMB_HUMAN	Polymorphism	11545672	D	S	79	P

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

Biological Unit 3 (5, 5)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073380	N	55	S	RSMB_HUMAN	Disease (CCMS)	---	F	N	55	S
2	UniProt	VAR_073381	N	55	T	RSMB_HUMAN	Disease (CCMS)	---	F	N	55	T
3	UniProt	VAR_073382	S	56	R	RSMB_HUMAN	Disease (CCMS)	---	F	S	56	R
4	UniProt	VAR_073383	S	56	W	RSMB_HUMAN	Disease (CCMS)	---	F	S	56	W
5	UniProt	VAR_052274	S	79	P	RSMB_HUMAN	Polymorphism	11545672	F	S	79	P

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

Biological Unit 4 (5, 5)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073380	N	55	S	RSMB_HUMAN	Disease (CCMS)	---	H	N	55	S
2	UniProt	VAR_073381	N	55	T	RSMB_HUMAN	Disease (CCMS)	---	H	N	55	T
3	UniProt	VAR_073382	S	56	R	RSMB_HUMAN	Disease (CCMS)	---	H	S	56	R
4	UniProt	VAR_073383	S	56	W	RSMB_HUMAN	Disease (CCMS)	---	H	S	56	W
5	UniProt	VAR_052274	S	79	P	RSMB_HUMAN	Polymorphism	11545672	H	S	79	P

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

Biological Unit 5 (5, 5)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073380	N	55	S	RSMB_HUMAN	Disease (CCMS)	---	J	N	55	S
2	UniProt	VAR_073381	N	55	T	RSMB_HUMAN	Disease (CCMS)	---	J	N	55	T
3	UniProt	VAR_073382	S	56	R	RSMB_HUMAN	Disease (CCMS)	---	J	S	56	R
4	UniProt	VAR_073383	S	56	W	RSMB_HUMAN	Disease (CCMS)	---	J	S	56	W
5	UniProt	VAR_052274	S	79	P	RSMB_HUMAN	Polymorphism	11545672	J	S	79	P

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

Biological Unit 6 (5, 5)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_073380	N	55	S	RSMB_HUMAN	Disease (CCMS)	---	L	N	55	S
2	UniProt	VAR_073381	N	55	T	RSMB_HUMAN	Disease (CCMS)	---	L	N	55	T
3	UniProt	VAR_073382	S	56	R	RSMB_HUMAN	Disease (CCMS)	---	L	S	56	R
4	UniProt	VAR_073383	S	56	W	RSMB_HUMAN	Disease (CCMS)	---	L	S	56	W
5	UniProt	VAR_052274	S	79	P	RSMB_HUMAN	Polymorphism	11545672	L	S	79	P

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

(no "PROSITE Motif" information available for 1D3B)

Asymmetric Unit (2, 12)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1a	ENST00000215829	1a	ENSE00001948969	chr22:24951471-24952039	569	SMD3_HUMAN	-	0	0	-	-
1.2a	ENST00000215829	2a	ENSE00000879568	chr22:24953625-24953768	144	SMD3_HUMAN	1-42	42	6	A:4-42 C:5-42 E:2-42 G:3-42 I:3-42 K:5-42	39 38 41 40 40 38
1.3b	ENST00000215829	3b	ENSE00000651723	chr22:24963952-24964144	193	SMD3_HUMAN	43-107	65	6	A:43-75 C:43-75 E:43-75 G:43-75 I:43-75 K:43-75	33 33 33 33 33 33
1.4c	ENST00000215829	4c	ENSE00001402429	chr22:24967884-24968740	857	SMD3_HUMAN	107-126	20	0	-	-

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:72
 aligned with SMD3_HUMAN | P62318 from UniProtKB/Swiss-Prot  Length:126

    Alignment length:72
                                    13        23        33        43        53        63        73  
            SMD3_HUMAN    4 GVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGSKIRFLILPD 75
               SCOP domains d1d3ba_ A: D3 core SNRNP protein                                         SCOP domains
               CATH domains 1d3bA00 A:4-75  [code=2.30.30.100, no name defined]                      CATH domains
               Pfam domains ------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhh...eeeeee....eeeeeeeee.....eeee.eeee.....eeee.eeee.hhheeeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------ PROSITE
               Transcript 1 Exon 1.2a  PDB: A:4-42 UniProt: 1-42   Exon 1.3b  PDB: A:43-75           Transcript 1
                  1d3b A  4 GVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGCKIRFLILPD 75
                                    13        23        33        43        53        63        73

Chain B from PDB  Type:PROTEIN  Length:81
 aligned with RSMB_HUMAN | P14678 from UniProtKB/Swiss-Prot  Length:240

    Alignment length:81
                                    16        26        36        46        56        66        76        86 
            RSMB_HUMAN    7 SKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
               SCOP domains d1d3bb_ B: B core SNRNP protein                                                   SCOP domains
               CATH domains 1d3bB00 B:7-87  [code=2.30.30.100, no name defined]                               CATH domains
               Pfam domains --------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhh...eeeee.....eeeeeeee......eeee.eeeeeee.........eeeeeeee.eee.hhh..eeeeee... Sec.struct. author
             SAPs(SNPs) (1) ------------------------------------------------SR----------------------P-------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) ------------------------------------------------TW------------------------------- SAPs(SNPs) (2)
                    PROSITE --------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------- Transcript
                  1d3b B  7 SKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
                                    16        26        36        46        56        66        76        86

Chain C from PDB  Type:PROTEIN  Length:71
 aligned with SMD3_HUMAN | P62318 from UniProtKB/Swiss-Prot  Length:126

    Alignment length:71
                                    14        24        34        44        54        64        74 
            SMD3_HUMAN    5 VPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGSKIRFLILPD 75
               SCOP domains d1d3bc_ C: D3 core SNRNP protein                                        SCOP domains
               CATH domains 1d3bC00 C:5-75  [code=2.30.30.100, no name defined]                     CATH domains
               Pfam domains ----------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhh...eeeeee....eeeeeeeee.....eeee.eeee.....eeee.eeee.hhheeeee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.2a  PDB: C:5-42 UniProt: 1-42  Exon 1.3b  PDB: C:43-75           Transcript 1
                  1d3b C  5 VPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGCKIRFLILPD 75
                                    14        24        34        44        54        64        74

Chain D from PDB  Type:PROTEIN  Length:86
 aligned with RSMB_HUMAN | P14678 from UniProtKB/Swiss-Prot  Length:240

    Alignment length:86
                                    11        21        31        41        51        61        71        81      
            RSMB_HUMAN    2 TVGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
               SCOP domains d1d3bd_ D: B core SNRNP protein                                                        SCOP domains
               CATH domains 1d3bD00 D:2-87  [code=2.30.30.100, no name defined]                                    CATH domains
               Pfam domains -------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee.....eeeeeeeee.....eeee.eeeeeee.........eeeeeeee.eee.hhh..eeeeee... Sec.struct. author
             SAPs(SNPs) (1) -----------------------------------------------------SR----------------------P-------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) -----------------------------------------------------TW------------------------------- SAPs(SNPs) (2)
                    PROSITE -------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------- Transcript
                  1d3b D  2 TVGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
                                    11        21        31        41        51        61        71        81

Chain E from PDB  Type:PROTEIN  Length:74
 aligned with SMD3_HUMAN | P62318 from UniProtKB/Swiss-Prot  Length:126

    Alignment length:74
                                    11        21        31        41        51        61        71    
            SMD3_HUMAN    2 SIGVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGSKIRFLILPD 75
               SCOP domains d1d3be_ E: D3 core SNRNP protein                                           SCOP domains
               CATH domains 1d3bE00 E:2-75  [code=2.30.30.100, no name defined]                        CATH domains
               Pfam domains -------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhh...eeeeee....eeeeeeeee.....eeee.eeee.....eeee.eeee.hhheeeee... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.2a  PDB: E:2-42 UniProt: 1-42     Exon 1.3b  PDB: E:43-75           Transcript 1
                  1d3b E  2 SIGVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGCKIRFLILPD 75
                                    11        21        31        41        51        61        71

Chain F from PDB  Type:PROTEIN  Length:83
 aligned with RSMB_HUMAN | P14678 from UniProtKB/Swiss-Prot  Length:240

    Alignment length:83
                                    14        24        34        44        54        64        74        84   
            RSMB_HUMAN    5 KSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
               SCOP domains d1d3bf_ F: B core SNRNP protein                                                     SCOP domains
               CATH domains 1d3bF00 F:5-87  [code=2.30.30.100, no name defined]                                 CATH domains
               Pfam domains ----------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhh...eeeee.....eeeeeeeee.....eeee.eeeeeee.........eeeeeeee.eee.hhh..eeeeee... Sec.struct. author
             SAPs(SNPs) (1) --------------------------------------------------SR----------------------P-------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) --------------------------------------------------TW------------------------------- SAPs(SNPs) (2)
                    PROSITE ----------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------- Transcript
                  1d3b F  5 KSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
                                    14        24        34        44        54        64        74        84

Chain G from PDB  Type:PROTEIN  Length:73
 aligned with SMD3_HUMAN | P62318 from UniProtKB/Swiss-Prot  Length:126

    Alignment length:73
                                    12        22        32        42        52        62        72   
            SMD3_HUMAN    3 IGVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGSKIRFLILPD 75
               SCOP domains d1d3bg_ G: D3 core SNRNP protein                                          SCOP domains
               CATH domains 1d3bG00 G:3-75  [code=2.30.30.100, no name defined]                       CATH domains
               Pfam domains ------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeeee....eeeeeeeee.....eeee.eeee.....eeee.eeee.hhheeeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.2a  PDB: G:3-42 UniProt: 1-42    Exon 1.3b  PDB: G:43-75           Transcript 1
                  1d3b G  3 IGVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGCKIRFLILPD 75
                                    12        22        32        42        52        62        72

Chain H from PDB  Type:PROTEIN  Length:86
 aligned with RSMB_HUMAN | P14678 from UniProtKB/Swiss-Prot  Length:240

    Alignment length:86
                                    12        22        32        42        52        62        72        82      
            RSMB_HUMAN    3 VGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPPK 88
               SCOP domains d1d3bh_ H: B core SNRNP protein                                                        SCOP domains
               CATH domains 1d3bH00 H:3-88  [code=2.30.30.100, no name defined]                                    CATH domains
               Pfam domains -------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhh...eeeee.....eeeeeeeee.....eeee.eeeeeee.........eeeeeeee.eee.hhh..eeeeee.... Sec.struct. author
             SAPs(SNPs) (1) ----------------------------------------------------SR----------------------P--------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) ----------------------------------------------------TW-------------------------------- SAPs(SNPs) (2)
                    PROSITE -------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------- Transcript
                  1d3b H  3 VGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPPK 88
                                    12        22        32        42        52        62        72        82

Chain I from PDB  Type:PROTEIN  Length:73
 aligned with SMD3_HUMAN | P62318 from UniProtKB/Swiss-Prot  Length:126

    Alignment length:73
                                    12        22        32        42        52        62        72   
            SMD3_HUMAN    3 IGVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGSKIRFLILPD 75
               SCOP domains d1d3bi_ I: D3 core SNRNP protein                                          SCOP domains
               CATH domains 1d3bI00 I:3-75  [code=2.30.30.100, no name defined]                       CATH domains
               Pfam domains ------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeeee....eeeeeeeee.....eeee.eeee.....eeee.eeee.hhheeeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.2a  PDB: I:3-42 UniProt: 1-42    Exon 1.3b  PDB: I:43-75           Transcript 1
                  1d3b I  3 IGVPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGCKIRFLILPD 75
                                    12        22        32        42        52        62        72

Chain J from PDB  Type:PROTEIN  Length:86
 aligned with RSMB_HUMAN | P14678 from UniProtKB/Swiss-Prot  Length:240

    Alignment length:86
                                    11        21        31        41        51        61        71        81      
            RSMB_HUMAN    2 TVGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
               SCOP domains d1d3bj_ J: B core SNRNP protein                                                        SCOP domains
               CATH domains 1d3bJ00 J:2-87  [code=2.30.30.100, no name defined]                                    CATH domains
               Pfam domains -------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee.....eeeeeeeee.....eeee.eeeeeee.........eeeeeeee.eee.hhh..eeeeee... Sec.struct. author
             SAPs(SNPs) (1) -----------------------------------------------------SR----------------------P-------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) -----------------------------------------------------TW------------------------------- SAPs(SNPs) (2)
                    PROSITE -------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------- Transcript
                  1d3b J  2 TVGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPP 87
                                    11        21        31        41        51        61        71        81

Chain K from PDB  Type:PROTEIN  Length:71
 aligned with SMD3_HUMAN | P62318 from UniProtKB/Swiss-Prot  Length:126

    Alignment length:71
                                    14        24        34        44        54        64        74 
            SMD3_HUMAN    5 VPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGSKIRFLILPD 75
               SCOP domains d1d3bk_ K: D3 core SNRNP protein                                        SCOP domains
               CATH domains 1d3bK00 K:5-75  [code=2.30.30.100, no name defined]                     CATH domains
               Pfam domains ----------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhh...eeeeee....eeeeeeeee.....eeee.eeee.....eeee.eeee.hhheeeee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.2a  PDB: K:5-42 UniProt: 1-42  Exon 1.3b  PDB: K:43-75           Transcript 1
                  1d3b K  5 VPIKVLHEAEGHIVTCETNTGEVYRGKLIEAEDNMNCQMSNITVTYRDGRVAQLEQVYIRGCKIRFLILPD 75
                                    14        24        34        44        54        64        74

Chain L from PDB  Type:PROTEIN  Length:90
 aligned with RSMB_HUMAN | P14678 from UniProtKB/Swiss-Prot  Length:240

    Alignment length:90
                                    11        21        31        41        51        61        71        81        91
            RSMB_HUMAN    2 TVGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPPKDTG 91
               SCOP domains d1d3bl_ L: B core SNRNP protein                                                            SCOP domains
               CATH domains 1d3bL00 L:2-91  [code=2.30.30.100, no name defined]                                        CATH domains
               Pfam domains ------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee.....eeeeeeeee.....eeee.eeeeeee.........eeeeeeee.eee.hhh..eeeeee....... Sec.struct. author
             SAPs(SNPs) (1) -----------------------------------------------------SR----------------------P------------ SAPs(SNPs) (1)
             SAPs(SNPs) (2) -----------------------------------------------------TW----------------------------------- SAPs(SNPs) (2)
                    PROSITE ------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------ Transcript
                  1d3b L  2 TVGKSSKMLQHIDYRMRCILQDGRIFIGTFKAFDKHMNLILCDCDEFRKIKPKNSKQAEREEKRVLGLVLLRGENLVSMTVEGPPPKDTG 91
                                    11        21        31        41        51        61        71        81        91

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 beta proteins (24004)

Fold: Sm-like fold (103)

Superfamily: Sm-like ribonucleoproteins (95)

Family: Sm motif of small nuclear ribonucleoproteins, SNRNP (31)

Protein domain: B core SNRNP protein (1)

Human (Homo sapiens) [TaxId: 9606] (1)

1a	d1d3bb_	B:
1b	d1d3bd_	D:
1c	d1d3bf_	F:
1d	d1d3bh_	H:
1e	d1d3bj_	J:
1f	d1d3bl_	L:

Protein domain: D3 core SNRNP protein (1)

Human (Homo sapiens) [TaxId: 9606] (1)

2a	d1d3ba_	A:
2b	d1d3bc_	C:
2c	d1d3be_	E:
2d	d1d3bg_	G:
2e	d1d3bi_	I:
2f	d1d3bk_	K:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Roll (1513)

Topology: SH3 type barrels. (648)

Homologous Superfamily: [code=2.30.30.100, no name defined] (40)

Human (Homo sapiens) (2)

1a	1d3bC00	C:5-75
1b	1d3bK00	K:5-75
1c	1d3bJ00	J:2-87
1d	1d3bL00	L:2-91
1e	1d3bA00	A:4-75
1f	1d3bG00	G:3-75
1g	1d3bI00	I:3-75
1h	1d3bE00	E:2-75
1i	1d3bB00	B:7-87
1j	1d3bF00	F:5-87
1k	1d3bD00	D:2-87
1l	1d3bH00	H:3-88

(no "Pfam Domain" information available for 1D3B)

Asymmetric Unit(hide GO term definitions)

Chain A,C,E,G,I,K (SMD3_HUMAN | P62318)

molecular function
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	GO:0071209	U7 snRNA binding	Interacting selectively and non-covalently with the U7 small nuclear RNA (U7 snRNA).
	GO:0019899	enzyme binding	Interacting selectively and non-covalently with any enzyme.
	GO:0071208	histone pre-mRNA DCP binding	Interacting selectively and non-covalently with the downstream cleavage product (DCP) generated by histone pre-mRNA 3'-end processing.
	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:0070034	telomerase RNA binding	Interacting selectively and non-covalently with the telomerase RNA template.
biological process
	GO:0006396	RNA processing	Any process involved in the conversion of one or more primary RNA transcripts into one or more mature RNA molecules.
	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:0008334	histone mRNA metabolic process	The chemical reactions and pathways involving an mRNA encoding a histone.
	GO:0006397	mRNA processing	Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide.
	GO:0000398	mRNA splicing, via spliceosome	The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
	GO:0051170	nuclear import	The directed movement of substances into the nucleus.
	GO:0006479	protein methylation	The addition of a methyl group to a protein amino acid. A methyl group is derived from methane by the removal of a hydrogen atom.
	GO:0000245	spliceosomal complex assembly	The aggregation, arrangement and bonding together of a spliceosomal complex, a ribonucleoprotein apparatus that catalyzes nuclear mRNA splicing via transesterification reactions.
	GO:0000387	spliceosomal snRNP assembly	The aggregation, arrangement and bonding together of one or more snRNA and multiple protein components to form a ribonucleoprotein complex that is involved in formation of the spliceosome.
	GO:0006369	termination of RNA polymerase II transcription	The process in which the synthesis of an RNA molecule by RNA polymerase II using a DNA template is completed.
cellular component
	GO:0034719	SMN-Sm protein complex	A protein complex formed by the association of several methylated Sm proteins with the SMN complex; the latter contains the survival motor neuron (SMN) protein and at least eight additional integral components, including the Gemin2-8 and unrip proteins; additional proteins, including galectin-1 and galectin-3, are also found in the SMN-SM complex. The SMN-Sm complex is involved in spliceosomal snRNP assembly in the cytoplasm.
	GO:0005685	U1 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U1.
	GO:0005689	U12-type spliceosomal complex	Any spliceosomal complex that forms during the splicing of a messenger RNA primary transcript to excise an intron; the series of U12-type spliceosomal complexes is involved in the splicing of the majority of introns that contain atypical AT-AC terminal dinucleotides, as well as other non-canonical introns. The entire splice site signal, not just the terminal dinucleotides, is involved in determining which spliceosome utilizes the site.
	GO:0005686	U2 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U2.
	GO:0005687	U4 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U4.
	GO:0005682	U5 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U5.
	GO:0005683	U7 snRNP	A ribonucleoprotein complex that contains the U7 snRNA and is required for the 3'-end processing of replication-dependent histone pre-mRNAs.
	GO:0071013	catalytic step 2 spliceosome	A spliceosomal complex that contains three snRNPs, including U5, bound to a splicing intermediate in which the first catalytic cleavage of the 5' splice site has occurred. The precise subunit composition differs significantly from that of the catalytic step 1, or activated, spliceosome, and includes many proteins in addition to those found in the associated snRNPs.
	GO:0000243	commitment complex	A spliceosomal complex that is formed by association of the U1 snRNP with the 5' splice site of an unspliced intron in an RNA transcript.
	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:0030529	intracellular ribonucleoprotein complex	An intracellular macromolecular complex containing both protein and RNA molecules.
	GO:0034709	methylosome	A large (20 S) protein complex that possesses protein arginine methyltransferase activity and modifies specific arginines to dimethylarginines in the arginine- and glycine-rich domains of several spliceosomal Sm proteins, thereby targeting these proteins to the survival of motor neurons (SMN) complex for assembly into small nuclear ribonucleoprotein (snRNP) core particles. Proteins found in the methylosome include the methyltransferase JBP1 (PRMT5), pICln (CLNS1A), MEP50 (WDR77), and unmethylated forms of SM proteins that have RG domains.
	GO:0005654	nucleoplasm	That part of the nuclear content other than the chromosomes or the nucleolus.
	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:0034715	pICln-Sm protein complex	A protein complex that contains pICln (CLNS1A) and several Sm proteins, including SmD1, SmD2, SmE, SmF, and SmG.
	GO:0071011	precatalytic spliceosome	A spliceosomal complex that is formed by the recruitment of a preassembled U5-containing tri-snRNP to the prespliceosome. Although all 5 snRNPs are present, the precatalytic spliceosome is catalytically inactive. The precatalytic spliceosome includes many proteins in addition to those found in the associated snRNPs.
	GO:0071010	prespliceosome	A spliceosomal complex that is formed by association of the 5' splice site and the branch point sequence with specific snRNPs. The prespliceosome includes many proteins in addition to those found in the bound snRNPs. Commitment to a given pair of 5' and 3' splice sites occurs at the time of prespliceosome formation. Prespliceosome complexes are not active for splicing, but are instead an early step in the assembly of a spliceosomal complex.
	GO:0030532	small nuclear ribonucleoprotein complex	A complex composed of RNA of the small nuclear RNA (snRNA) class and protein, found in the nucleus of a eukaryotic cell. These are typically named after the snRNA(s) they contain, e.g. U1 snRNP or U4/U6 snRNP. Many, but not all, of these complexes are involved in splicing of nuclear mRNAs.
	GO:0005681	spliceosomal complex	Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
	GO:0097526	spliceosomal tri-snRNP complex	A spliceosomal snRNP complex containing U4 and U6 (or U4atac and U6atac) snRNAs and U5 snRNAs and associated proteins.
	GO:0005697	telomerase holoenzyme complex	Telomerase is a ribonucleoprotein enzyme complex, with a minimal catalytic core composed of a catalytic reverse transcriptase subunit and an RNA subunit that provides the template for telomeric DNA addition. In vivo, the holoenzyme complex often contains additional subunits.

Chain B,D,F,H,J,L (RSMB_HUMAN | P14678)

molecular function
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	GO:0071208	histone pre-mRNA DCP binding	Interacting selectively and non-covalently with the downstream cleavage product (DCP) generated by histone pre-mRNA 3'-end processing.
	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:0070034	telomerase RNA binding	Interacting selectively and non-covalently with the telomerase RNA template.
biological process
	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:0008334	histone mRNA metabolic process	The chemical reactions and pathways involving an mRNA encoding a histone.
	GO:0006397	mRNA processing	Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide.
	GO:0000398	mRNA splicing, via spliceosome	The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
	GO:0051170	nuclear import	The directed movement of substances into the nucleus.
	GO:0002230	positive regulation of defense response to virus by host	Any host process that results in the promotion of antiviral immune response mechanisms, thereby limiting viral replication.
	GO:0098779	positive regulation of macromitophagy in response to mitochondrial depolarization	The macromitophagy process that is triggered by a detection of the loss of mitochondrial membrane potential.
	GO:0006479	protein methylation	The addition of a methyl group to a protein amino acid. A methyl group is derived from methane by the removal of a hydrogen atom.
	GO:0000387	spliceosomal snRNP assembly	The aggregation, arrangement and bonding together of one or more snRNA and multiple protein components to form a ribonucleoprotein complex that is involved in formation of the spliceosome.
	GO:0006369	termination of RNA polymerase II transcription	The process in which the synthesis of an RNA molecule by RNA polymerase II using a DNA template is completed.
	GO:0098792	xenophagy	The macroautophagy process in which a region of cytoplasm containing an intracellular pathogen or some part of an intracellular pathogen (e.g. viral capsid) is enclosed in a double membrane bound autophagosome, which then fuses with the lysosome leading to degradation of the contents.
cellular component
	GO:0034719	SMN-Sm protein complex	A protein complex formed by the association of several methylated Sm proteins with the SMN complex; the latter contains the survival motor neuron (SMN) protein and at least eight additional integral components, including the Gemin2-8 and unrip proteins; additional proteins, including galectin-1 and galectin-3, are also found in the SMN-SM complex. The SMN-Sm complex is involved in spliceosomal snRNP assembly in the cytoplasm.
	GO:0005685	U1 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U1.
	GO:0005689	U12-type spliceosomal complex	Any spliceosomal complex that forms during the splicing of a messenger RNA primary transcript to excise an intron; the series of U12-type spliceosomal complexes is involved in the splicing of the majority of introns that contain atypical AT-AC terminal dinucleotides, as well as other non-canonical introns. The entire splice site signal, not just the terminal dinucleotides, is involved in determining which spliceosome utilizes the site.
	GO:0005686	U2 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U2.
	GO:0071004	U2-type prespliceosome	A spliceosomal complex that is formed by association of the 5' splice site with the U1 snRNP, while the branch point sequence is recognized by the U2 snRNP. The prespliceosome includes many proteins in addition to those found in the U1 and U2 snRNPs. Commitment to a given pair of 5' and 3' splice sites occurs at the time of prespliceosome formation.
	GO:0005687	U4 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U4.
	GO:0046540	U4/U6 x U5 tri-snRNP complex	A ribonucleoprotein complex formed by the association of the U4/U6 and U5 small nuclear ribonucleoproteins.
	GO:0005682	U5 snRNP	A ribonucleoprotein complex that contains small nuclear RNA U5.
	GO:0005683	U7 snRNP	A ribonucleoprotein complex that contains the U7 snRNA and is required for the 3'-end processing of replication-dependent histone pre-mRNAs.
	GO:0071013	catalytic step 2 spliceosome	A spliceosomal complex that contains three snRNPs, including U5, bound to a splicing intermediate in which the first catalytic cleavage of the 5' splice site has occurred. The precise subunit composition differs significantly from that of the catalytic step 1, or activated, spliceosome, and includes many proteins in addition to those found in the associated snRNPs.
	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:0071204	histone pre-mRNA 3'end processing complex	A ribonucleoprotein that binds to specific sites in, and is required for cleavage of, the 3'-end of histone pre-mRNAs. The complex contains the U7 snRNP and additional proteins, including the stem-loop binding protein (SLBP) and the exonuclease 3'hExo/Eri-1.
	GO:0030529	intracellular ribonucleoprotein complex	An intracellular macromolecular complex containing both protein and RNA molecules.
	GO:0034709	methylosome	A large (20 S) protein complex that possesses protein arginine methyltransferase activity and modifies specific arginines to dimethylarginines in the arginine- and glycine-rich domains of several spliceosomal Sm proteins, thereby targeting these proteins to the survival of motor neurons (SMN) complex for assembly into small nuclear ribonucleoprotein (snRNP) core particles. Proteins found in the methylosome include the methyltransferase JBP1 (PRMT5), pICln (CLNS1A), MEP50 (WDR77), and unmethylated forms of SM proteins that have RG domains.
	GO:0005654	nucleoplasm	That part of the nuclear content other than the chromosomes or the nucleolus.
	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:0030532	small nuclear ribonucleoprotein complex	A complex composed of RNA of the small nuclear RNA (snRNA) class and protein, found in the nucleus of a eukaryotic cell. These are typically named after the snRNA(s) they contain, e.g. U1 snRNP or U4/U6 snRNP. Many, but not all, of these complexes are involved in splicing of nuclear mRNAs.
	GO:0005681	spliceosomal complex	Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
	GO:0005697	telomerase holoenzyme complex	Telomerase is a ribonucleoprotein enzyme complex, with a minimal catalytic core composed of a catalytic reverse transcriptase subunit and an RNA subunit that provides the template for telomeric DNA addition. In vivo, the holoenzyme complex often contains additional subunits.

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	SMD3_HUMAN \| P62318
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		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

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	117650
		Disease Information	:	OMIM

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		Age Related Information	:	GenAge

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		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
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	RSMB_HUMAN \| P14678
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	SMD3_HUMAN \| P62318
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	RSMB_HUMAN \| P14678	:	3cw1 3jcr 3pgw 4pjo 4wzj 5mqf
	SMD3_HUMAN \| P62318	:	3cw1 3jcr 3pgw 3vri 4pjo 4wzj 5mqf

(no "Related Entries Specified in the PDB File" available for 1D3B)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 17)

Sites (17, 17)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (5, 30)

PROSITE Motifs (0, 0)

Exons (2, 12)

Sequences/Alignments

Classification and Annotation

SCOP Domains (2, 12)

CATH Domains (1, 12)

Pfam Domains (0, 0)

Gene Ontology (45, 75)

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Databases

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File