Overview
| Uniprot ID | B2RYB3 |
| Protein Name | Serine/arginine repetitive matrix protein 1 |
| Gene Name | Srrm1 |
| Organism | Rattus norvegicus |
Kla Sites from experimental identification
| Position |
Flanking peptide |
| 140 |
QRQIEQEKLASLKKQ |
| 246 |
TSTSDILKAPKPEPV |
| 29 |
KKLLKQLKFAECLEK |
| 457 |
SPAPKPRKVELSESE |
Function
Part of pre- and post-splicing multiprotein mRNP complexes. As a component of the minor spliceosome, involved in the splicing of U12-type introns in pre-mRNAs. Involved in numerous pre-mRNA processing events. Promotes constitutive and exonic splicing enhancer (ESE)-dependent splicing activation by bridging together sequence-specific (SR family proteins, SFRS4, SFRS5 and TRA2B/SFRS10) and basal snRNP (SNRP70 and SNRPA1) factors of the spliceosome. Stimulates mRNA 3'-end cleavage independently of the formation of an exon junction complex. Binds both pre-mRNA and spliced mRNA 20-25 nt upstream of exon-exon junctions. Binds RNA and DNA with low sequence specificity and has similar preference for either double- or single-stranded nucleic acid substrates
Protein Sequence
10
MDAGFFRGTS
20
AEQDNRFSNK
30
QKKLLKQLKF
40
AECLEKKVDM
50
SKVNLEVIKP
60
WITKRVTEIL
70
GFEDDVVIEF
80
IFNQLEVKNP
90
DSKMMQINLT
100
GFLNGKNARE
110
FMGELWPLLL
120
SAQENIAGIP
130
SAFLELKKEE
140
IKQRQIEQEK
150
LASLKKQDED
160
KDKRDKEEKE
170
SSREKRERSR
180
SPRRRKSRSP
190
SPRRRSSPVR
200
RERKRSHSRS
210
PRHRTKSRSP
220
SPAPEKKEKS
230
PELPEPSVRM
240
KDSSVQEATS
250
TSDILKAPKP
260
EPVPEPKEPS
270
PEKNSKKEKE
280
KTRPRSRSRS
290
KSRSRTRSRS
300
PSHTRPRRRH
310
RSRSRSYSPR
320
RRPSPRRRPS
330
PRRRTPPRRM
340
PPPPRHRRSR
350
SPGRRRRRSS
360
ASLSGSSSSS
370
SSSRSRSPPK
380
KPPKRTSSPP
390
RKTRRLSPSA
400
SPPRRRHRPS
410
SPATPPPKTR
420
HSPTPQQSNR
430
ARKSRVSVSP
440
GRTSGKVTKH
450
KGTEKRESPS
460
PAPKPRKVEL
470
SESEEDKGSK
480
MAAADSVQQR
490
RQYRRQNQQS
500
SSDSGSSSTS
510
EDERPKRSHV
520
KNGEVGRRRR
530
HSPSRSASPS
540
PRKRQKETSP
550
RSRRRRSPSP
560
PPARRRRSPS
570
PAPPPPPPPP
580
PRRRRSPTPP
590
PRRRTPSPPP
600
RRRSPSPRRY
610
SPPIQRRYSP
620
SPPPKRRTAS
630
PPPPPKRRAS
640
PSPPPKRRVS
650
HSPPPKQRSP
660
PVTKRRSPSL
670
SSKHRKGSSP
680
GRSTREARSP
690
QPNKRHSPSP
700
RPRAPQTSSP
710
PPVRRGASAS
720
PQGRQSPSPS
730
TRPIRRVSRT
740
PEPKKIKKAA
750
SPSPQSVRRV
760
SSSRSVSGSP
770
EPTAKKPPAP
780
PSPVQSQSPS
790
TNWSPAAPAK
800
KAKSPTPSPS
810
PARNSDQEGG
820
GKKKKKKKDK
830
KHKKDKKHKK
840
HKKHKKEKAV
850
AVATPAPAAP
860
AAVSAAATPS
870
AQEEPAAAPE
880
PRKETESEAE
890
DDNLDDLERH
900
LREKALRSMR
KAQVSPQS
Gene Ontology
| Classification |
GO ID |
Description |
| Cellular Component |
GO:0005681 |
spliceosomal complex |
| Biological Process |
GO:0006397 |
mRNA processing |
| Biological Process |
GO:0008380 |
RNA splicing |
Reference
[1] Sheng L, Xu H, Wang Y, Ni J, Xiang T et al.. Systematic analysis of lysine lactylation in nucleus pulposus cells.. iScience 27(11):111157. 2024 Nov 15. PMID: 39524337.